ffmpeg support

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2026-04-26 11:22:31 +02:00
parent d8fae59e4e
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/*
* Bitstream filters public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_BSF_H
#define AVCODEC_BSF_H
#include "libavutil/dict.h"
#include "libavutil/log.h"
#include "libavutil/rational.h"
#include "codec_id.h"
#include "codec_par.h"
#include "packet.h"
/**
* @defgroup lavc_bsf Bitstream filters
* @ingroup libavc
*
* Bitstream filters transform encoded media data without decoding it. This
* allows e.g. manipulating various header values. Bitstream filters operate on
* @ref AVPacket "AVPackets".
*
* The bitstream filtering API is centered around two structures:
* AVBitStreamFilter and AVBSFContext. The former represents a bitstream filter
* in abstract, the latter a specific filtering process. Obtain an
* AVBitStreamFilter using av_bsf_get_by_name() or av_bsf_iterate(), then pass
* it to av_bsf_alloc() to create an AVBSFContext. Fill in the user-settable
* AVBSFContext fields, as described in its documentation, then call
* av_bsf_init() to prepare the filter context for use.
*
* Submit packets for filtering using av_bsf_send_packet(), obtain filtered
* results with av_bsf_receive_packet(). When no more input packets will be
* sent, submit a NULL AVPacket to signal the end of the stream to the filter.
* av_bsf_receive_packet() will then return trailing packets, if any are
* produced by the filter.
*
* Finally, free the filter context with av_bsf_free().
* @{
*/
/**
* The bitstream filter state.
*
* This struct must be allocated with av_bsf_alloc() and freed with
* av_bsf_free().
*
* The fields in the struct will only be changed (by the caller or by the
* filter) as described in their documentation, and are to be considered
* immutable otherwise.
*/
typedef struct AVBSFContext {
/**
* A class for logging and AVOptions
*/
const AVClass *av_class;
/**
* The bitstream filter this context is an instance of.
*/
const struct AVBitStreamFilter *filter;
/**
* Opaque filter-specific private data. If filter->priv_class is non-NULL,
* this is an AVOptions-enabled struct.
*/
void *priv_data;
/**
* Parameters of the input stream. This field is allocated in
* av_bsf_alloc(), it needs to be filled by the caller before
* av_bsf_init().
*/
AVCodecParameters *par_in;
/**
* Parameters of the output stream. This field is allocated in
* av_bsf_alloc(), it is set by the filter in av_bsf_init().
*/
AVCodecParameters *par_out;
/**
* The timebase used for the timestamps of the input packets. Set by the
* caller before av_bsf_init().
*/
AVRational time_base_in;
/**
* The timebase used for the timestamps of the output packets. Set by the
* filter in av_bsf_init().
*/
AVRational time_base_out;
} AVBSFContext;
typedef struct AVBitStreamFilter {
const char *name;
/**
* A list of codec ids supported by the filter, terminated by
* AV_CODEC_ID_NONE.
* May be NULL, in that case the bitstream filter works with any codec id.
*/
const enum AVCodecID *codec_ids;
/**
* A class for the private data, used to declare bitstream filter private
* AVOptions. This field is NULL for bitstream filters that do not declare
* any options.
*
* If this field is non-NULL, the first member of the filter private data
* must be a pointer to AVClass, which will be set by libavcodec generic
* code to this class.
*/
const AVClass *priv_class;
} AVBitStreamFilter;
/**
* @return a bitstream filter with the specified name or NULL if no such
* bitstream filter exists.
*/
const AVBitStreamFilter *av_bsf_get_by_name(const char *name);
/**
* Iterate over all registered bitstream filters.
*
* @param opaque a pointer where libavcodec will store the iteration state. Must
* point to NULL to start the iteration.
*
* @return the next registered bitstream filter or NULL when the iteration is
* finished
*/
const AVBitStreamFilter *av_bsf_iterate(void **opaque);
/**
* Allocate a context for a given bitstream filter. The caller must fill in the
* context parameters as described in the documentation and then call
* av_bsf_init() before sending any data to the filter.
*
* @param filter the filter for which to allocate an instance.
* @param[out] ctx a pointer into which the pointer to the newly-allocated context
* will be written. It must be freed with av_bsf_free() after the
* filtering is done.
*
* @return 0 on success, a negative AVERROR code on failure
*/
int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx);
/**
* Prepare the filter for use, after all the parameters and options have been
* set.
*
* @param ctx a AVBSFContext previously allocated with av_bsf_alloc()
*/
int av_bsf_init(AVBSFContext *ctx);
/**
* Submit a packet for filtering.
*
* After sending each packet, the filter must be completely drained by calling
* av_bsf_receive_packet() repeatedly until it returns AVERROR(EAGAIN) or
* AVERROR_EOF.
*
* @param ctx an initialized AVBSFContext
* @param pkt the packet to filter. The bitstream filter will take ownership of
* the packet and reset the contents of pkt. pkt is not touched if an error occurs.
* If pkt is empty (i.e. NULL, or pkt->data is NULL and pkt->side_data_elems zero),
* it signals the end of the stream (i.e. no more non-empty packets will be sent;
* sending more empty packets does nothing) and will cause the filter to output
* any packets it may have buffered internally.
*
* @return
* - 0 on success.
* - AVERROR(EAGAIN) if packets need to be retrieved from the filter (using
* av_bsf_receive_packet()) before new input can be consumed.
* - Another negative AVERROR value if an error occurs.
*/
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
/**
* Retrieve a filtered packet.
*
* @param ctx an initialized AVBSFContext
* @param[out] pkt this struct will be filled with the contents of the filtered
* packet. It is owned by the caller and must be freed using
* av_packet_unref() when it is no longer needed.
* This parameter should be "clean" (i.e. freshly allocated
* with av_packet_alloc() or unreffed with av_packet_unref())
* when this function is called. If this function returns
* successfully, the contents of pkt will be completely
* overwritten by the returned data. On failure, pkt is not
* touched.
*
* @return
* - 0 on success.
* - AVERROR(EAGAIN) if more packets need to be sent to the filter (using
* av_bsf_send_packet()) to get more output.
* - AVERROR_EOF if there will be no further output from the filter.
* - Another negative AVERROR value if an error occurs.
*
* @note one input packet may result in several output packets, so after sending
* a packet with av_bsf_send_packet(), this function needs to be called
* repeatedly until it stops returning 0. It is also possible for a filter to
* output fewer packets than were sent to it, so this function may return
* AVERROR(EAGAIN) immediately after a successful av_bsf_send_packet() call.
*/
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
/**
* Reset the internal bitstream filter state. Should be called e.g. when seeking.
*/
void av_bsf_flush(AVBSFContext *ctx);
/**
* Free a bitstream filter context and everything associated with it; write NULL
* into the supplied pointer.
*/
void av_bsf_free(AVBSFContext **ctx);
/**
* Get the AVClass for AVBSFContext. It can be used in combination with
* AV_OPT_SEARCH_FAKE_OBJ for examining options.
*
* @see av_opt_find().
*/
const AVClass *av_bsf_get_class(void);
/**
* Structure for chain/list of bitstream filters.
* Empty list can be allocated by av_bsf_list_alloc().
*/
typedef struct AVBSFList AVBSFList;
/**
* Allocate empty list of bitstream filters.
* The list must be later freed by av_bsf_list_free()
* or finalized by av_bsf_list_finalize().
*
* @return Pointer to @ref AVBSFList on success, NULL in case of failure
*/
AVBSFList *av_bsf_list_alloc(void);
/**
* Free list of bitstream filters.
*
* @param lst Pointer to pointer returned by av_bsf_list_alloc()
*/
void av_bsf_list_free(AVBSFList **lst);
/**
* Append bitstream filter to the list of bitstream filters.
*
* @param lst List to append to
* @param bsf Filter context to be appended
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf);
/**
* Construct new bitstream filter context given it's name and options
* and append it to the list of bitstream filters.
*
* @param lst List to append to
* @param bsf_name Name of the bitstream filter
* @param options Options for the bitstream filter, can be set to NULL
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_append2(AVBSFList *lst, const char * bsf_name, AVDictionary **options);
/**
* Finalize list of bitstream filters.
*
* This function will transform @ref AVBSFList to single @ref AVBSFContext,
* so the whole chain of bitstream filters can be treated as single filter
* freshly allocated by av_bsf_alloc().
* If the call is successful, @ref AVBSFList structure is freed and lst
* will be set to NULL. In case of failure, caller is responsible for
* freeing the structure by av_bsf_list_free()
*
* @param lst Filter list structure to be transformed
* @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
* representing the chain of bitstream filters
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf);
/**
* Parse string describing list of bitstream filters and create single
* @ref AVBSFContext describing the whole chain of bitstream filters.
* Resulting @ref AVBSFContext can be treated as any other @ref AVBSFContext freshly
* allocated by av_bsf_alloc().
*
* @param str String describing chain of bitstream filters in format
* `bsf1[=opt1=val1:opt2=val2][,bsf2]`
* @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
* representing the chain of bitstream filters
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf);
/**
* Get null/pass-through bitstream filter.
*
* @param[out] bsf Pointer to be set to new instance of pass-through bitstream filter
*
* @return
*/
int av_bsf_get_null_filter(AVBSFContext **bsf);
/**
* @}
*/
#endif // AVCODEC_BSF_H
@@ -0,0 +1,367 @@
/*
* AVCodec public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_H
#define AVCODEC_CODEC_H
#include <stdint.h>
#include "libavutil/avutil.h"
#include "libavutil/hwcontext.h"
#include "libavutil/log.h"
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
#include "libavutil/samplefmt.h"
#include "libavcodec/codec_id.h"
#include "libavcodec/version_major.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* Decoder can use draw_horiz_band callback.
*/
#define AV_CODEC_CAP_DRAW_HORIZ_BAND (1 << 0)
/**
* Codec uses get_buffer() or get_encode_buffer() for allocating buffers and
* supports custom allocators.
* If not set, it might not use get_buffer() or get_encode_buffer() at all, or
* use operations that assume the buffer was allocated by
* avcodec_default_get_buffer2 or avcodec_default_get_encode_buffer.
*/
#define AV_CODEC_CAP_DR1 (1 << 1)
/**
* Encoder or decoder requires flushing with NULL input at the end in order to
* give the complete and correct output.
*
* NOTE: If this flag is not set, the codec is guaranteed to never be fed with
* with NULL data. The user can still send NULL data to the public encode
* or decode function, but libavcodec will not pass it along to the codec
* unless this flag is set.
*
* Decoders:
* The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL,
* avpkt->size=0 at the end to get the delayed data until the decoder no longer
* returns frames.
*
* Encoders:
* The encoder needs to be fed with NULL data at the end of encoding until the
* encoder no longer returns data.
*
* NOTE: For encoders implementing the AVCodec.encode2() function, setting this
* flag also means that the encoder must set the pts and duration for
* each output packet. If this flag is not set, the pts and duration will
* be determined by libavcodec from the input frame.
*/
#define AV_CODEC_CAP_DELAY (1 << 5)
/**
* Codec can be fed a final frame with a smaller size.
* This can be used to prevent truncation of the last audio samples.
*/
#define AV_CODEC_CAP_SMALL_LAST_FRAME (1 << 6)
/**
* Codec is experimental and is thus avoided in favor of non experimental
* encoders
*/
#define AV_CODEC_CAP_EXPERIMENTAL (1 << 9)
/**
* Codec should fill in channel configuration and samplerate instead of container
*/
#define AV_CODEC_CAP_CHANNEL_CONF (1 << 10)
/**
* Codec supports frame-level multithreading.
*/
#define AV_CODEC_CAP_FRAME_THREADS (1 << 12)
/**
* Codec supports slice-based (or partition-based) multithreading.
*/
#define AV_CODEC_CAP_SLICE_THREADS (1 << 13)
/**
* Codec supports changed parameters at any point.
*/
#define AV_CODEC_CAP_PARAM_CHANGE (1 << 14)
/**
* Codec supports multithreading through a method other than slice- or
* frame-level multithreading. Typically this marks wrappers around
* multithreading-capable external libraries.
*/
#define AV_CODEC_CAP_OTHER_THREADS (1 << 15)
/**
* Audio encoder supports receiving a different number of samples in each call.
*/
#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16)
/**
* Decoder is not a preferred choice for probing.
* This indicates that the decoder is not a good choice for probing.
* It could for example be an expensive to spin up hardware decoder,
* or it could simply not provide a lot of useful information about
* the stream.
* A decoder marked with this flag should only be used as last resort
* choice for probing.
*/
#define AV_CODEC_CAP_AVOID_PROBING (1 << 17)
/**
* Codec is backed by a hardware implementation. Typically used to
* identify a non-hwaccel hardware decoder. For information about hwaccels, use
* avcodec_get_hw_config() instead.
*/
#define AV_CODEC_CAP_HARDWARE (1 << 18)
/**
* Codec is potentially backed by a hardware implementation, but not
* necessarily. This is used instead of AV_CODEC_CAP_HARDWARE, if the
* implementation provides some sort of internal fallback.
*/
#define AV_CODEC_CAP_HYBRID (1 << 19)
/**
* This encoder can reorder user opaque values from input AVFrames and return
* them with corresponding output packets.
* @see AV_CODEC_FLAG_COPY_OPAQUE
*/
#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20)
/**
* This encoder can be flushed using avcodec_flush_buffers(). If this flag is
* not set, the encoder must be closed and reopened to ensure that no frames
* remain pending.
*/
#define AV_CODEC_CAP_ENCODER_FLUSH (1 << 21)
/**
* The encoder is able to output reconstructed frame data, i.e. raw frames that
* would be produced by decoding the encoded bitstream.
*
* Reconstructed frame output is enabled by the AV_CODEC_FLAG_RECON_FRAME flag.
*/
#define AV_CODEC_CAP_ENCODER_RECON_FRAME (1 << 22)
/**
* AVProfile.
*/
typedef struct AVProfile {
int profile;
const char *name; ///< short name for the profile
} AVProfile;
/**
* AVCodec.
*/
typedef struct AVCodec {
/**
* Name of the codec implementation.
* The name is globally unique among encoders and among decoders (but an
* encoder and a decoder can share the same name).
* This is the primary way to find a codec from the user perspective.
*/
const char *name;
/**
* Descriptive name for the codec, meant to be more human readable than name.
* You should use the NULL_IF_CONFIG_SMALL() macro to define it.
*/
const char *long_name;
enum AVMediaType type;
enum AVCodecID id;
/**
* Codec capabilities.
* see AV_CODEC_CAP_*
*/
int capabilities;
uint8_t max_lowres; ///< maximum value for lowres supported by the decoder
/**
* Deprecated codec capabilities.
*/
attribute_deprecated
const AVRational *supported_framerates; ///< @deprecated use avcodec_get_supported_config()
attribute_deprecated
const enum AVPixelFormat *pix_fmts; ///< @deprecated use avcodec_get_supported_config()
attribute_deprecated
const int *supported_samplerates; ///< @deprecated use avcodec_get_supported_config()
attribute_deprecated
const enum AVSampleFormat *sample_fmts; ///< @deprecated use avcodec_get_supported_config()
const AVClass *priv_class; ///< AVClass for the private context
const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {AV_PROFILE_UNKNOWN}
/**
* Group name of the codec implementation.
* This is a short symbolic name of the wrapper backing this codec. A
* wrapper uses some kind of external implementation for the codec, such
* as an external library, or a codec implementation provided by the OS or
* the hardware.
* If this field is NULL, this is a builtin, libavcodec native codec.
* If non-NULL, this will be the suffix in AVCodec.name in most cases
* (usually AVCodec.name will be of the form "<codec_name>_<wrapper_name>").
*/
const char *wrapper_name;
/**
* Array of supported channel layouts, terminated with a zeroed layout.
* @deprecated use avcodec_get_supported_config()
*/
attribute_deprecated
const AVChannelLayout *ch_layouts;
} AVCodec;
/**
* Iterate over all registered codecs.
*
* @param opaque a pointer where libavcodec will store the iteration state. Must
* point to NULL to start the iteration.
*
* @return the next registered codec or NULL when the iteration is
* finished
*/
const AVCodec *av_codec_iterate(void **opaque);
/**
* Find a registered decoder with a matching codec ID.
*
* @param id AVCodecID of the requested decoder
* @return A decoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_decoder(enum AVCodecID id);
/**
* Find a registered decoder with the specified name.
*
* @param name name of the requested decoder
* @return A decoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_decoder_by_name(const char *name);
/**
* Find a registered encoder with a matching codec ID.
*
* @param id AVCodecID of the requested encoder
* @return An encoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_encoder(enum AVCodecID id);
/**
* Find a registered encoder with the specified name.
*
* @param name name of the requested encoder
* @return An encoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_encoder_by_name(const char *name);
/**
* @return a non-zero number if codec is an encoder, zero otherwise
*/
int av_codec_is_encoder(const AVCodec *codec);
/**
* @return a non-zero number if codec is a decoder, zero otherwise
*/
int av_codec_is_decoder(const AVCodec *codec);
/**
* Return a name for the specified profile, if available.
*
* @param codec the codec that is searched for the given profile
* @param profile the profile value for which a name is requested
* @return A name for the profile if found, NULL otherwise.
*/
const char *av_get_profile_name(const AVCodec *codec, int profile);
enum {
/**
* The codec supports this format via the hw_device_ctx interface.
*
* When selecting this format, AVCodecContext.hw_device_ctx should
* have been set to a device of the specified type before calling
* avcodec_open2().
*/
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX = 0x01,
/**
* The codec supports this format via the hw_frames_ctx interface.
*
* When selecting this format for a decoder,
* AVCodecContext.hw_frames_ctx should be set to a suitable frames
* context inside the get_format() callback. The frames context
* must have been created on a device of the specified type.
*
* When selecting this format for an encoder,
* AVCodecContext.hw_frames_ctx should be set to the context which
* will be used for the input frames before calling avcodec_open2().
*/
AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX = 0x02,
/**
* The codec supports this format by some internal method.
*
* This format can be selected without any additional configuration -
* no device or frames context is required.
*/
AV_CODEC_HW_CONFIG_METHOD_INTERNAL = 0x04,
/**
* The codec supports this format by some ad-hoc method.
*
* Additional settings and/or function calls are required. See the
* codec-specific documentation for details. (Methods requiring
* this sort of configuration are deprecated and others should be
* used in preference.)
*/
AV_CODEC_HW_CONFIG_METHOD_AD_HOC = 0x08,
};
typedef struct AVCodecHWConfig {
/**
* For decoders, a hardware pixel format which that decoder may be
* able to decode to if suitable hardware is available.
*
* For encoders, a pixel format which the encoder may be able to
* accept. If set to AV_PIX_FMT_NONE, this applies to all pixel
* formats supported by the codec.
*/
enum AVPixelFormat pix_fmt;
/**
* Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible
* setup methods which can be used with this configuration.
*/
int methods;
/**
* The device type associated with the configuration.
*
* Must be set for AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX and
* AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX, otherwise unused.
*/
enum AVHWDeviceType device_type;
} AVCodecHWConfig;
/**
* Retrieve supported hardware configurations for a codec.
*
* Values of index from zero to some maximum return the indexed configuration
* descriptor; all other values return NULL. If the codec does not support
* any hardware configurations then it will always return NULL.
*/
const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index);
/**
* @}
*/
#endif /* AVCODEC_CODEC_H */
@@ -0,0 +1,142 @@
/*
* Codec descriptors public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_DESC_H
#define AVCODEC_CODEC_DESC_H
#include "libavutil/avutil.h"
#include "codec_id.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* This struct describes the properties of a single codec described by an
* AVCodecID.
* @see avcodec_descriptor_get()
*/
typedef struct AVCodecDescriptor {
enum AVCodecID id;
enum AVMediaType type;
/**
* Name of the codec described by this descriptor. It is non-empty and
* unique for each codec descriptor. It should contain alphanumeric
* characters and '_' only.
*/
const char *name;
/**
* A more descriptive name for this codec. May be NULL.
*/
const char *long_name;
/**
* Codec properties, a combination of AV_CODEC_PROP_* flags.
*/
int props;
/**
* MIME type(s) associated with the codec.
* May be NULL; if not, a NULL-terminated array of MIME types.
* The first item is always non-NULL and is the preferred MIME type.
*/
const char *const *mime_types;
/**
* If non-NULL, an array of profiles recognized for this codec.
* Terminated with AV_PROFILE_UNKNOWN.
*/
const struct AVProfile *profiles;
} AVCodecDescriptor;
/**
* Codec uses only intra compression.
* Video and audio codecs only.
*/
#define AV_CODEC_PROP_INTRA_ONLY (1 << 0)
/**
* Codec supports lossy compression. Audio and video codecs only.
* @note a codec may support both lossy and lossless
* compression modes
*/
#define AV_CODEC_PROP_LOSSY (1 << 1)
/**
* Codec supports lossless compression. Audio and video codecs only.
*/
#define AV_CODEC_PROP_LOSSLESS (1 << 2)
/**
* Codec supports frame reordering. That is, the coded order (the order in which
* the encoded packets are output by the encoders / stored / input to the
* decoders) may be different from the presentation order of the corresponding
* frames.
*
* For codecs that do not have this property set, PTS and DTS should always be
* equal.
*/
#define AV_CODEC_PROP_REORDER (1 << 3)
/**
* Video codec supports separate coding of fields in interlaced frames.
*/
#define AV_CODEC_PROP_FIELDS (1 << 4)
/**
* Video codec contains enhancement information meant to be applied to other
* existing frames, and can't generate usable image data on its own.
* A standalone decoder is unlikely to be available for it and should not
* be expected.
*/
#define AV_CODEC_PROP_ENHANCEMENT (1 << 5)
/**
* Subtitle codec is bitmap based
* Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.
*/
#define AV_CODEC_PROP_BITMAP_SUB (1 << 16)
/**
* Subtitle codec is text based.
* Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field.
*/
#define AV_CODEC_PROP_TEXT_SUB (1 << 17)
/**
* @return descriptor for given codec ID or NULL if no descriptor exists.
*/
const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id);
/**
* Iterate over all codec descriptors known to libavcodec.
*
* @param prev previous descriptor. NULL to get the first descriptor.
*
* @return next descriptor or NULL after the last descriptor
*/
const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev);
/**
* @return codec descriptor with the given name or NULL if no such descriptor
* exists.
*/
const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name);
/**
* @}
*/
#endif // AVCODEC_CODEC_DESC_H
@@ -0,0 +1,693 @@
/*
* Codec IDs
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_ID_H
#define AVCODEC_CODEC_ID_H
#include "libavutil/avutil.h"
#include "libavutil/samplefmt.h"
#include "version_major.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* Identify the syntax and semantics of the bitstream.
* The principle is roughly:
* Two decoders with the same ID can decode the same streams.
* Two encoders with the same ID can encode compatible streams.
* There may be slight deviations from the principle due to implementation
* details.
*
* If you add a codec ID to this list, add it so that
* 1. no value of an existing codec ID changes (that would break ABI),
* 2. it is as close as possible to similar codecs
*
* After adding new codec IDs, do not forget to add an entry to the codec
* descriptor list and bump libavcodec minor version.
*/
enum AVCodecID {
AV_CODEC_ID_NONE,
/* video codecs */
AV_CODEC_ID_MPEG1VIDEO,
AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
AV_CODEC_ID_H261,
AV_CODEC_ID_H263,
AV_CODEC_ID_RV10,
AV_CODEC_ID_RV20,
AV_CODEC_ID_MJPEG,
AV_CODEC_ID_MJPEGB,
AV_CODEC_ID_LJPEG,
AV_CODEC_ID_SP5X,
AV_CODEC_ID_JPEGLS,
AV_CODEC_ID_MPEG4,
AV_CODEC_ID_RAWVIDEO,
AV_CODEC_ID_MSMPEG4V1,
AV_CODEC_ID_MSMPEG4V2,
AV_CODEC_ID_MSMPEG4V3,
AV_CODEC_ID_WMV1,
AV_CODEC_ID_WMV2,
AV_CODEC_ID_H263P,
AV_CODEC_ID_H263I,
AV_CODEC_ID_FLV1,
AV_CODEC_ID_SVQ1,
AV_CODEC_ID_SVQ3,
AV_CODEC_ID_DVVIDEO,
AV_CODEC_ID_HUFFYUV,
AV_CODEC_ID_CYUV,
AV_CODEC_ID_H264,
AV_CODEC_ID_INDEO3,
AV_CODEC_ID_VP3,
AV_CODEC_ID_THEORA,
AV_CODEC_ID_ASV1,
AV_CODEC_ID_ASV2,
AV_CODEC_ID_FFV1,
AV_CODEC_ID_4XM,
AV_CODEC_ID_VCR1,
AV_CODEC_ID_CLJR,
AV_CODEC_ID_MDEC,
AV_CODEC_ID_ROQ,
AV_CODEC_ID_INTERPLAY_VIDEO,
AV_CODEC_ID_XAN_WC3,
AV_CODEC_ID_XAN_WC4,
AV_CODEC_ID_RPZA,
AV_CODEC_ID_CINEPAK,
AV_CODEC_ID_WS_VQA,
AV_CODEC_ID_MSRLE,
AV_CODEC_ID_MSVIDEO1,
AV_CODEC_ID_IDCIN,
AV_CODEC_ID_8BPS,
AV_CODEC_ID_SMC,
AV_CODEC_ID_FLIC,
AV_CODEC_ID_TRUEMOTION1,
AV_CODEC_ID_VMDVIDEO,
AV_CODEC_ID_MSZH,
AV_CODEC_ID_ZLIB,
AV_CODEC_ID_QTRLE,
AV_CODEC_ID_TSCC,
AV_CODEC_ID_ULTI,
AV_CODEC_ID_QDRAW,
AV_CODEC_ID_VIXL,
AV_CODEC_ID_QPEG,
AV_CODEC_ID_PNG,
AV_CODEC_ID_PPM,
AV_CODEC_ID_PBM,
AV_CODEC_ID_PGM,
AV_CODEC_ID_PGMYUV,
AV_CODEC_ID_PAM,
AV_CODEC_ID_FFVHUFF,
AV_CODEC_ID_RV30,
AV_CODEC_ID_RV40,
AV_CODEC_ID_VC1,
AV_CODEC_ID_WMV3,
AV_CODEC_ID_LOCO,
AV_CODEC_ID_WNV1,
AV_CODEC_ID_AASC,
AV_CODEC_ID_INDEO2,
AV_CODEC_ID_FRAPS,
AV_CODEC_ID_TRUEMOTION2,
AV_CODEC_ID_BMP,
AV_CODEC_ID_CSCD,
AV_CODEC_ID_MMVIDEO,
AV_CODEC_ID_ZMBV,
AV_CODEC_ID_AVS,
AV_CODEC_ID_SMACKVIDEO,
AV_CODEC_ID_NUV,
AV_CODEC_ID_KMVC,
AV_CODEC_ID_FLASHSV,
AV_CODEC_ID_CAVS,
AV_CODEC_ID_JPEG2000,
AV_CODEC_ID_VMNC,
AV_CODEC_ID_VP5,
AV_CODEC_ID_VP6,
AV_CODEC_ID_VP6F,
AV_CODEC_ID_TARGA,
AV_CODEC_ID_DSICINVIDEO,
AV_CODEC_ID_TIERTEXSEQVIDEO,
AV_CODEC_ID_TIFF,
AV_CODEC_ID_GIF,
AV_CODEC_ID_DXA,
AV_CODEC_ID_DNXHD,
AV_CODEC_ID_THP,
AV_CODEC_ID_SGI,
AV_CODEC_ID_C93,
AV_CODEC_ID_BETHSOFTVID,
AV_CODEC_ID_PTX,
AV_CODEC_ID_TXD,
AV_CODEC_ID_VP6A,
AV_CODEC_ID_AMV,
AV_CODEC_ID_VB,
AV_CODEC_ID_PCX,
AV_CODEC_ID_SUNRAST,
AV_CODEC_ID_INDEO4,
AV_CODEC_ID_INDEO5,
AV_CODEC_ID_MIMIC,
AV_CODEC_ID_RL2,
AV_CODEC_ID_ESCAPE124,
AV_CODEC_ID_DIRAC,
AV_CODEC_ID_BFI,
AV_CODEC_ID_CMV,
AV_CODEC_ID_MOTIONPIXELS,
AV_CODEC_ID_TGV,
AV_CODEC_ID_TGQ,
AV_CODEC_ID_TQI,
AV_CODEC_ID_AURA,
AV_CODEC_ID_AURA2,
AV_CODEC_ID_V210X,
AV_CODEC_ID_TMV,
AV_CODEC_ID_V210,
AV_CODEC_ID_DPX,
AV_CODEC_ID_MAD,
AV_CODEC_ID_FRWU,
AV_CODEC_ID_FLASHSV2,
AV_CODEC_ID_CDGRAPHICS,
AV_CODEC_ID_R210,
AV_CODEC_ID_ANM,
AV_CODEC_ID_BINKVIDEO,
AV_CODEC_ID_IFF_ILBM,
#define AV_CODEC_ID_IFF_BYTERUN1 AV_CODEC_ID_IFF_ILBM
AV_CODEC_ID_KGV1,
AV_CODEC_ID_YOP,
AV_CODEC_ID_VP8,
AV_CODEC_ID_PICTOR,
AV_CODEC_ID_ANSI,
AV_CODEC_ID_A64_MULTI,
AV_CODEC_ID_A64_MULTI5,
AV_CODEC_ID_R10K,
AV_CODEC_ID_MXPEG,
AV_CODEC_ID_LAGARITH,
AV_CODEC_ID_PRORES,
AV_CODEC_ID_JV,
AV_CODEC_ID_DFA,
AV_CODEC_ID_WMV3IMAGE,
AV_CODEC_ID_VC1IMAGE,
AV_CODEC_ID_UTVIDEO,
AV_CODEC_ID_BMV_VIDEO,
AV_CODEC_ID_VBLE,
AV_CODEC_ID_DXTORY,
#if FF_API_V408_CODECID
AV_CODEC_ID_V410,
#endif
AV_CODEC_ID_XWD,
AV_CODEC_ID_CDXL,
AV_CODEC_ID_XBM,
AV_CODEC_ID_ZEROCODEC,
AV_CODEC_ID_MSS1,
AV_CODEC_ID_MSA1,
AV_CODEC_ID_TSCC2,
AV_CODEC_ID_MTS2,
AV_CODEC_ID_CLLC,
AV_CODEC_ID_MSS2,
AV_CODEC_ID_VP9,
AV_CODEC_ID_AIC,
AV_CODEC_ID_ESCAPE130,
AV_CODEC_ID_G2M,
AV_CODEC_ID_WEBP,
AV_CODEC_ID_HNM4_VIDEO,
AV_CODEC_ID_HEVC,
#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
AV_CODEC_ID_FIC,
AV_CODEC_ID_ALIAS_PIX,
AV_CODEC_ID_BRENDER_PIX,
AV_CODEC_ID_PAF_VIDEO,
AV_CODEC_ID_EXR,
AV_CODEC_ID_VP7,
AV_CODEC_ID_SANM,
AV_CODEC_ID_SGIRLE,
AV_CODEC_ID_MVC1,
AV_CODEC_ID_MVC2,
AV_CODEC_ID_HQX,
AV_CODEC_ID_TDSC,
AV_CODEC_ID_HQ_HQA,
AV_CODEC_ID_HAP,
AV_CODEC_ID_DDS,
AV_CODEC_ID_DXV,
AV_CODEC_ID_SCREENPRESSO,
AV_CODEC_ID_RSCC,
AV_CODEC_ID_AVS2,
AV_CODEC_ID_PGX,
AV_CODEC_ID_AVS3,
AV_CODEC_ID_MSP2,
AV_CODEC_ID_VVC,
#define AV_CODEC_ID_H266 AV_CODEC_ID_VVC
AV_CODEC_ID_Y41P,
AV_CODEC_ID_AVRP,
AV_CODEC_ID_012V,
AV_CODEC_ID_AVUI,
AV_CODEC_ID_TARGA_Y216,
#if FF_API_V408_CODECID
AV_CODEC_ID_V308,
AV_CODEC_ID_V408,
#endif
AV_CODEC_ID_YUV4,
AV_CODEC_ID_AVRN,
AV_CODEC_ID_CPIA,
AV_CODEC_ID_XFACE,
AV_CODEC_ID_SNOW,
AV_CODEC_ID_SMVJPEG,
AV_CODEC_ID_APNG,
AV_CODEC_ID_DAALA,
AV_CODEC_ID_CFHD,
AV_CODEC_ID_TRUEMOTION2RT,
AV_CODEC_ID_M101,
AV_CODEC_ID_MAGICYUV,
AV_CODEC_ID_SHEERVIDEO,
AV_CODEC_ID_YLC,
AV_CODEC_ID_PSD,
AV_CODEC_ID_PIXLET,
AV_CODEC_ID_SPEEDHQ,
AV_CODEC_ID_FMVC,
AV_CODEC_ID_SCPR,
AV_CODEC_ID_CLEARVIDEO,
AV_CODEC_ID_XPM,
AV_CODEC_ID_AV1,
AV_CODEC_ID_BITPACKED,
AV_CODEC_ID_MSCC,
AV_CODEC_ID_SRGC,
AV_CODEC_ID_SVG,
AV_CODEC_ID_GDV,
AV_CODEC_ID_FITS,
AV_CODEC_ID_IMM4,
AV_CODEC_ID_PROSUMER,
AV_CODEC_ID_MWSC,
AV_CODEC_ID_WCMV,
AV_CODEC_ID_RASC,
AV_CODEC_ID_HYMT,
AV_CODEC_ID_ARBC,
AV_CODEC_ID_AGM,
AV_CODEC_ID_LSCR,
AV_CODEC_ID_VP4,
AV_CODEC_ID_IMM5,
AV_CODEC_ID_MVDV,
AV_CODEC_ID_MVHA,
AV_CODEC_ID_CDTOONS,
AV_CODEC_ID_MV30,
AV_CODEC_ID_NOTCHLC,
AV_CODEC_ID_PFM,
AV_CODEC_ID_MOBICLIP,
AV_CODEC_ID_PHOTOCD,
AV_CODEC_ID_IPU,
AV_CODEC_ID_ARGO,
AV_CODEC_ID_CRI,
AV_CODEC_ID_SIMBIOSIS_IMX,
AV_CODEC_ID_SGA_VIDEO,
AV_CODEC_ID_GEM,
AV_CODEC_ID_VBN,
AV_CODEC_ID_JPEGXL,
AV_CODEC_ID_QOI,
AV_CODEC_ID_PHM,
AV_CODEC_ID_RADIANCE_HDR,
AV_CODEC_ID_WBMP,
AV_CODEC_ID_MEDIA100,
AV_CODEC_ID_VQC,
AV_CODEC_ID_PDV,
AV_CODEC_ID_EVC,
AV_CODEC_ID_RTV1,
AV_CODEC_ID_VMIX,
AV_CODEC_ID_LEAD,
AV_CODEC_ID_DNXUC,
AV_CODEC_ID_RV60,
AV_CODEC_ID_JPEGXL_ANIM,
AV_CODEC_ID_APV,
AV_CODEC_ID_PRORES_RAW,
AV_CODEC_ID_JPEGXS,
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
AV_CODEC_ID_PCM_S16LE = 0x10000,
AV_CODEC_ID_PCM_S16BE,
AV_CODEC_ID_PCM_U16LE,
AV_CODEC_ID_PCM_U16BE,
AV_CODEC_ID_PCM_S8,
AV_CODEC_ID_PCM_U8,
AV_CODEC_ID_PCM_MULAW,
AV_CODEC_ID_PCM_ALAW,
AV_CODEC_ID_PCM_S32LE,
AV_CODEC_ID_PCM_S32BE,
AV_CODEC_ID_PCM_U32LE,
AV_CODEC_ID_PCM_U32BE,
AV_CODEC_ID_PCM_S24LE,
AV_CODEC_ID_PCM_S24BE,
AV_CODEC_ID_PCM_U24LE,
AV_CODEC_ID_PCM_U24BE,
AV_CODEC_ID_PCM_S24DAUD,
AV_CODEC_ID_PCM_ZORK,
AV_CODEC_ID_PCM_S16LE_PLANAR,
AV_CODEC_ID_PCM_DVD,
AV_CODEC_ID_PCM_F32BE,
AV_CODEC_ID_PCM_F32LE,
AV_CODEC_ID_PCM_F64BE,
AV_CODEC_ID_PCM_F64LE,
AV_CODEC_ID_PCM_BLURAY,
AV_CODEC_ID_PCM_LXF,
AV_CODEC_ID_S302M,
AV_CODEC_ID_PCM_S8_PLANAR,
AV_CODEC_ID_PCM_S24LE_PLANAR,
AV_CODEC_ID_PCM_S32LE_PLANAR,
AV_CODEC_ID_PCM_S16BE_PLANAR,
AV_CODEC_ID_PCM_S64LE,
AV_CODEC_ID_PCM_S64BE,
AV_CODEC_ID_PCM_F16LE,
AV_CODEC_ID_PCM_F24LE,
AV_CODEC_ID_PCM_VIDC,
AV_CODEC_ID_PCM_SGA,
/* various ADPCM codecs */
AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
AV_CODEC_ID_ADPCM_IMA_WAV,
AV_CODEC_ID_ADPCM_IMA_DK3,
AV_CODEC_ID_ADPCM_IMA_DK4,
AV_CODEC_ID_ADPCM_IMA_WS,
AV_CODEC_ID_ADPCM_IMA_SMJPEG,
AV_CODEC_ID_ADPCM_MS,
AV_CODEC_ID_ADPCM_4XM,
AV_CODEC_ID_ADPCM_XA,
AV_CODEC_ID_ADPCM_ADX,
AV_CODEC_ID_ADPCM_EA,
AV_CODEC_ID_ADPCM_G726,
AV_CODEC_ID_ADPCM_CT,
AV_CODEC_ID_ADPCM_SWF,
AV_CODEC_ID_ADPCM_YAMAHA,
AV_CODEC_ID_ADPCM_SBPRO_4,
AV_CODEC_ID_ADPCM_SBPRO_3,
AV_CODEC_ID_ADPCM_SBPRO_2,
AV_CODEC_ID_ADPCM_THP,
AV_CODEC_ID_ADPCM_IMA_AMV,
AV_CODEC_ID_ADPCM_EA_R1,
AV_CODEC_ID_ADPCM_EA_R3,
AV_CODEC_ID_ADPCM_EA_R2,
AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
AV_CODEC_ID_ADPCM_IMA_EA_EACS,
AV_CODEC_ID_ADPCM_EA_XAS,
AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
AV_CODEC_ID_ADPCM_IMA_ISS,
AV_CODEC_ID_ADPCM_G722,
AV_CODEC_ID_ADPCM_IMA_APC,
AV_CODEC_ID_ADPCM_VIMA,
AV_CODEC_ID_ADPCM_AFC,
AV_CODEC_ID_ADPCM_IMA_OKI,
AV_CODEC_ID_ADPCM_DTK,
AV_CODEC_ID_ADPCM_IMA_RAD,
AV_CODEC_ID_ADPCM_G726LE,
AV_CODEC_ID_ADPCM_THP_LE,
AV_CODEC_ID_ADPCM_PSX,
AV_CODEC_ID_ADPCM_AICA,
AV_CODEC_ID_ADPCM_IMA_DAT4,
AV_CODEC_ID_ADPCM_MTAF,
AV_CODEC_ID_ADPCM_AGM,
AV_CODEC_ID_ADPCM_ARGO,
AV_CODEC_ID_ADPCM_IMA_SSI,
AV_CODEC_ID_ADPCM_ZORK,
AV_CODEC_ID_ADPCM_IMA_APM,
AV_CODEC_ID_ADPCM_IMA_ALP,
AV_CODEC_ID_ADPCM_IMA_MTF,
AV_CODEC_ID_ADPCM_IMA_CUNNING,
AV_CODEC_ID_ADPCM_IMA_MOFLEX,
AV_CODEC_ID_ADPCM_IMA_ACORN,
AV_CODEC_ID_ADPCM_XMD,
AV_CODEC_ID_ADPCM_IMA_XBOX,
AV_CODEC_ID_ADPCM_SANYO,
AV_CODEC_ID_ADPCM_IMA_HVQM4,
AV_CODEC_ID_ADPCM_IMA_PDA,
AV_CODEC_ID_ADPCM_N64,
AV_CODEC_ID_ADPCM_IMA_HVQM2,
AV_CODEC_ID_ADPCM_IMA_MAGIX,
AV_CODEC_ID_ADPCM_PSXC,
AV_CODEC_ID_ADPCM_CIRCUS,
AV_CODEC_ID_ADPCM_IMA_ESCAPE,
/* AMR */
AV_CODEC_ID_AMR_NB = 0x12000,
AV_CODEC_ID_AMR_WB,
/* RealAudio codecs*/
AV_CODEC_ID_RA_144 = 0x13000,
AV_CODEC_ID_RA_288,
/* various DPCM codecs */
AV_CODEC_ID_ROQ_DPCM = 0x14000,
AV_CODEC_ID_INTERPLAY_DPCM,
AV_CODEC_ID_XAN_DPCM,
AV_CODEC_ID_SOL_DPCM,
AV_CODEC_ID_SDX2_DPCM,
AV_CODEC_ID_GREMLIN_DPCM,
AV_CODEC_ID_DERF_DPCM,
AV_CODEC_ID_WADY_DPCM,
AV_CODEC_ID_CBD2_DPCM,
/* audio codecs */
AV_CODEC_ID_MP2 = 0x15000,
AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
AV_CODEC_ID_AAC,
AV_CODEC_ID_AC3,
AV_CODEC_ID_DTS,
AV_CODEC_ID_VORBIS,
AV_CODEC_ID_DVAUDIO,
AV_CODEC_ID_WMAV1,
AV_CODEC_ID_WMAV2,
AV_CODEC_ID_MACE3,
AV_CODEC_ID_MACE6,
AV_CODEC_ID_VMDAUDIO,
AV_CODEC_ID_FLAC,
AV_CODEC_ID_MP3ADU,
AV_CODEC_ID_MP3ON4,
AV_CODEC_ID_SHORTEN,
AV_CODEC_ID_ALAC,
AV_CODEC_ID_WESTWOOD_SND1,
AV_CODEC_ID_GSM, ///< as in Berlin toast format
AV_CODEC_ID_QDM2,
AV_CODEC_ID_COOK,
AV_CODEC_ID_TRUESPEECH,
AV_CODEC_ID_TTA,
AV_CODEC_ID_SMACKAUDIO,
AV_CODEC_ID_QCELP,
AV_CODEC_ID_WAVPACK,
AV_CODEC_ID_DSICINAUDIO,
AV_CODEC_ID_IMC,
AV_CODEC_ID_MUSEPACK7,
AV_CODEC_ID_MLP,
AV_CODEC_ID_GSM_MS, /* as found in WAV */
AV_CODEC_ID_ATRAC3,
AV_CODEC_ID_APE,
AV_CODEC_ID_NELLYMOSER,
AV_CODEC_ID_MUSEPACK8,
AV_CODEC_ID_SPEEX,
AV_CODEC_ID_WMAVOICE,
AV_CODEC_ID_WMAPRO,
AV_CODEC_ID_WMALOSSLESS,
AV_CODEC_ID_ATRAC3P,
AV_CODEC_ID_EAC3,
AV_CODEC_ID_SIPR,
AV_CODEC_ID_MP1,
AV_CODEC_ID_TWINVQ,
AV_CODEC_ID_TRUEHD,
AV_CODEC_ID_MP4ALS,
AV_CODEC_ID_ATRAC1,
AV_CODEC_ID_BINKAUDIO_RDFT,
AV_CODEC_ID_BINKAUDIO_DCT,
AV_CODEC_ID_AAC_LATM,
AV_CODEC_ID_QDMC,
AV_CODEC_ID_CELT,
AV_CODEC_ID_G723_1,
AV_CODEC_ID_G729,
AV_CODEC_ID_8SVX_EXP,
AV_CODEC_ID_8SVX_FIB,
AV_CODEC_ID_BMV_AUDIO,
AV_CODEC_ID_RALF,
AV_CODEC_ID_IAC,
AV_CODEC_ID_ILBC,
AV_CODEC_ID_OPUS,
AV_CODEC_ID_COMFORT_NOISE,
AV_CODEC_ID_TAK,
AV_CODEC_ID_METASOUND,
AV_CODEC_ID_PAF_AUDIO,
AV_CODEC_ID_ON2AVC,
AV_CODEC_ID_DSS_SP,
AV_CODEC_ID_CODEC2,
AV_CODEC_ID_FFWAVESYNTH,
AV_CODEC_ID_SONIC,
AV_CODEC_ID_SONIC_LS,
AV_CODEC_ID_EVRC,
AV_CODEC_ID_SMV,
AV_CODEC_ID_DSD_LSBF,
AV_CODEC_ID_DSD_MSBF,
AV_CODEC_ID_DSD_LSBF_PLANAR,
AV_CODEC_ID_DSD_MSBF_PLANAR,
AV_CODEC_ID_4GV,
AV_CODEC_ID_INTERPLAY_ACM,
AV_CODEC_ID_XMA1,
AV_CODEC_ID_XMA2,
AV_CODEC_ID_DST,
AV_CODEC_ID_ATRAC3AL,
AV_CODEC_ID_ATRAC3PAL,
AV_CODEC_ID_DOLBY_E,
AV_CODEC_ID_APTX,
AV_CODEC_ID_APTX_HD,
AV_CODEC_ID_SBC,
AV_CODEC_ID_ATRAC9,
AV_CODEC_ID_HCOM,
AV_CODEC_ID_ACELP_KELVIN,
AV_CODEC_ID_MPEGH_3D_AUDIO,
AV_CODEC_ID_SIREN,
AV_CODEC_ID_HCA,
AV_CODEC_ID_FASTAUDIO,
AV_CODEC_ID_MSNSIREN,
AV_CODEC_ID_DFPWM,
AV_CODEC_ID_BONK,
AV_CODEC_ID_MISC4,
AV_CODEC_ID_APAC,
AV_CODEC_ID_FTR,
AV_CODEC_ID_WAVARC,
AV_CODEC_ID_RKA,
AV_CODEC_ID_AC4,
AV_CODEC_ID_OSQ,
AV_CODEC_ID_QOA,
AV_CODEC_ID_LC3,
AV_CODEC_ID_G728,
AV_CODEC_ID_AHX,
/* subtitle codecs */
AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
AV_CODEC_ID_DVB_SUBTITLE,
AV_CODEC_ID_TEXT, ///< raw UTF-8 text
AV_CODEC_ID_XSUB,
AV_CODEC_ID_SSA,
AV_CODEC_ID_MOV_TEXT,
AV_CODEC_ID_HDMV_PGS_SUBTITLE,
AV_CODEC_ID_DVB_TELETEXT,
AV_CODEC_ID_SRT,
AV_CODEC_ID_MICRODVD,
AV_CODEC_ID_EIA_608,
AV_CODEC_ID_JACOSUB,
AV_CODEC_ID_SAMI,
AV_CODEC_ID_REALTEXT,
AV_CODEC_ID_STL,
AV_CODEC_ID_SUBVIEWER1,
AV_CODEC_ID_SUBVIEWER,
AV_CODEC_ID_SUBRIP,
AV_CODEC_ID_WEBVTT,
AV_CODEC_ID_MPL2,
AV_CODEC_ID_VPLAYER,
AV_CODEC_ID_PJS,
AV_CODEC_ID_ASS,
AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
AV_CODEC_ID_TTML,
AV_CODEC_ID_ARIB_CAPTION,
AV_CODEC_ID_IVTV_VBI,
/* other specific kind of codecs (generally used for attachments) */
AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
AV_CODEC_ID_TTF = 0x18000,
AV_CODEC_ID_SCTE_35, ///< Contain timestamp estimated through PCR of program stream.
AV_CODEC_ID_EPG,
AV_CODEC_ID_BINTEXT,
AV_CODEC_ID_XBIN,
AV_CODEC_ID_IDF,
AV_CODEC_ID_OTF,
AV_CODEC_ID_SMPTE_KLV,
AV_CODEC_ID_DVD_NAV,
AV_CODEC_ID_TIMED_ID3,
AV_CODEC_ID_BIN_DATA,
AV_CODEC_ID_SMPTE_2038,
AV_CODEC_ID_LCEVC,
AV_CODEC_ID_SMPTE_436M_ANC,
AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it
AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
* stream (only used by libavformat) */
AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
* stream (only used by libavformat) */
AV_CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information.
AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001, ///< Passthrough codec, AVFrames wrapped in AVPacket
/**
* Dummy null video codec, useful mainly for development and debugging.
* Null encoder/decoder discard all input and never return any output.
*/
AV_CODEC_ID_VNULL,
/**
* Dummy null audio codec, useful mainly for development and debugging.
* Null encoder/decoder discard all input and never return any output.
*/
AV_CODEC_ID_ANULL,
};
/**
* Get the type of the given codec.
*/
enum AVMediaType avcodec_get_type(enum AVCodecID codec_id);
/**
* Get the name of a codec.
* @return a static string identifying the codec; never NULL
*/
const char *avcodec_get_name(enum AVCodecID id);
/**
* Return codec bits per sample.
*
* @param[in] codec_id the codec
* @return Number of bits per sample or zero if unknown for the given codec.
*/
int av_get_bits_per_sample(enum AVCodecID codec_id);
/**
* Return codec bits per sample.
* Only return non-zero if the bits per sample is exactly correct, not an
* approximation.
*
* @param[in] codec_id the codec
* @return Number of bits per sample or zero if unknown for the given codec.
*/
int av_get_exact_bits_per_sample(enum AVCodecID codec_id);
/**
* Return a name for the specified profile, if available.
*
* @param codec_id the ID of the codec to which the requested profile belongs
* @param profile the profile value for which a name is requested
* @return A name for the profile if found, NULL otherwise.
*
* @note unlike av_get_profile_name(), which searches a list of profiles
* supported by a specific decoder or encoder implementation, this
* function searches the list of profiles from the AVCodecDescriptor
*/
const char *avcodec_profile_name(enum AVCodecID codec_id, int profile);
/**
* Return the PCM codec associated with a sample format.
* @param be endianness, 0 for little, 1 for big,
* -1 (or anything else) for native
* @return AV_CODEC_ID_PCM_* or AV_CODEC_ID_NONE
*/
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be);
/**
* @}
*/
#endif // AVCODEC_CODEC_ID_H
@@ -0,0 +1,253 @@
/*
* Codec parameters public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_PAR_H
#define AVCODEC_CODEC_PAR_H
#include <stdint.h>
#include "libavutil/avutil.h"
#include "libavutil/channel_layout.h"
#include "libavutil/rational.h"
#include "libavutil/pixfmt.h"
#include "codec_id.h"
#include "defs.h"
#include "packet.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* This struct describes the properties of an encoded stream.
*
* sizeof(AVCodecParameters) is not a part of the public ABI, this struct must
* be allocated with avcodec_parameters_alloc() and freed with
* avcodec_parameters_free().
*/
typedef struct AVCodecParameters {
/**
* General type of the encoded data.
*/
enum AVMediaType codec_type;
/**
* Specific type of the encoded data (the codec used).
*/
enum AVCodecID codec_id;
/**
* Additional information about the codec (corresponds to the AVI FOURCC).
*/
uint32_t codec_tag;
/**
* Extra binary data needed for initializing the decoder, codec-dependent.
*
* Must be allocated with av_malloc() and will be freed by
* avcodec_parameters_free(). The allocated size of extradata must be at
* least extradata_size + AV_INPUT_BUFFER_PADDING_SIZE, with the padding
* bytes zeroed.
*/
uint8_t *extradata;
/**
* Size of the extradata content in bytes.
*/
int extradata_size;
/**
* Additional data associated with the entire stream.
*
* Should be allocated with av_packet_side_data_new() or
* av_packet_side_data_add(), and will be freed by avcodec_parameters_free().
*/
AVPacketSideData *coded_side_data;
/**
* Amount of entries in @ref coded_side_data.
*/
int nb_coded_side_data;
/**
* - video: the pixel format, the value corresponds to enum AVPixelFormat.
* - audio: the sample format, the value corresponds to enum AVSampleFormat.
*/
int format;
/**
* The average bitrate of the encoded data (in bits per second).
*/
int64_t bit_rate;
/**
* The number of bits per sample in the codedwords.
*
* This is basically the bitrate per sample. It is mandatory for a bunch of
* formats to actually decode them. It's the number of bits for one sample in
* the actual coded bitstream.
*
* This could be for example 4 for ADPCM
* For PCM formats this matches bits_per_raw_sample
* Can be 0
*/
int bits_per_coded_sample;
/**
* This is the number of valid bits in each output sample. If the
* sample format has more bits, the least significant bits are additional
* padding bits, which are always 0. Use right shifts to reduce the sample
* to its actual size. For example, audio formats with 24 bit samples will
* have bits_per_raw_sample set to 24, and format set to AV_SAMPLE_FMT_S32.
* To get the original sample use "(int32_t)sample >> 8"."
*
* For ADPCM this might be 12 or 16 or similar
* Can be 0
*/
int bits_per_raw_sample;
/**
* Codec-specific bitstream restrictions that the stream conforms to.
*/
int profile;
int level;
/**
* Video only. The dimensions of the video frame in pixels.
*/
int width;
int height;
/**
* Video only. The aspect ratio (width / height) which a single pixel
* should have when displayed.
*
* When the aspect ratio is unknown / undefined, the numerator should be
* set to 0 (the denominator may have any value).
*/
AVRational sample_aspect_ratio;
/**
* Video only. Number of frames per second, for streams with constant frame
* durations. Should be set to { 0, 1 } when some frames have differing
* durations or if the value is not known.
*
* @note This field corresponds to values that are stored in codec-level
* headers and is typically overridden by container/transport-layer
* timestamps, when available. It should thus be used only as a last resort,
* when no higher-level timing information is available.
*/
AVRational framerate;
/**
* Video only. The order of the fields in interlaced video.
*/
enum AVFieldOrder field_order;
/**
* Video only. Additional colorspace characteristics.
*/
enum AVColorRange color_range;
enum AVColorPrimaries color_primaries;
enum AVColorTransferCharacteristic color_trc;
enum AVColorSpace color_space;
enum AVChromaLocation chroma_location;
/**
* Video only. Number of delayed frames.
*/
int video_delay;
/**
* Audio only. The channel layout and number of channels.
*/
AVChannelLayout ch_layout;
/**
* Audio only. The number of audio samples per second.
*/
int sample_rate;
/**
* Audio only. The number of bytes per coded audio frame, required by some
* formats.
*
* Corresponds to nBlockAlign in WAVEFORMATEX.
*/
int block_align;
/**
* Audio only. Audio frame size, if known. Required by some formats to be static.
*/
int frame_size;
/**
* Audio only. The amount of padding (in samples) inserted by the encoder at
* the beginning of the audio. I.e. this number of leading decoded samples
* must be discarded by the caller to get the original audio without leading
* padding.
*/
int initial_padding;
/**
* Audio only. The amount of padding (in samples) appended by the encoder to
* the end of the audio. I.e. this number of decoded samples must be
* discarded by the caller from the end of the stream to get the original
* audio without any trailing padding.
*/
int trailing_padding;
/**
* Audio only. Number of samples to skip after a discontinuity.
*/
int seek_preroll;
/**
* Video with alpha channel only. Alpha channel handling
*/
enum AVAlphaMode alpha_mode;
} AVCodecParameters;
/**
* Allocate a new AVCodecParameters and set its fields to default values
* (unknown/invalid/0). The returned struct must be freed with
* avcodec_parameters_free().
*/
AVCodecParameters *avcodec_parameters_alloc(void);
/**
* Free an AVCodecParameters instance and everything associated with it and
* write NULL to the supplied pointer.
*/
void avcodec_parameters_free(AVCodecParameters **par);
/**
* Copy the contents of src to dst. Any allocated fields in dst are freed and
* replaced with newly allocated duplicates of the corresponding fields in src.
*
* @return >= 0 on success, a negative AVERROR code on failure.
*/
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src);
/**
* This function is the same as av_get_audio_frame_duration(), except it works
* with AVCodecParameters instead of an AVCodecContext.
*/
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes);
/**
* @}
*/
#endif // AVCODEC_CODEC_PAR_H
@@ -0,0 +1,109 @@
/*
* Direct3D11 HW acceleration
*
* copyright (c) 2009 Laurent Aimar
* copyright (c) 2015 Steve Lhomme
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_D3D11VA_H
#define AVCODEC_D3D11VA_H
/**
* @file
* @ingroup lavc_codec_hwaccel_d3d11va
* Public libavcodec D3D11VA header.
*/
#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0602
#endif
#include <stdint.h>
#include <d3d11.h>
/**
* @defgroup lavc_codec_hwaccel_d3d11va Direct3D11
* @ingroup lavc_codec_hwaccel
*
* @{
*/
/**
* This structure is used to provides the necessary configurations and data
* to the Direct3D11 FFmpeg HWAccel implementation.
*
* The application must make it available as AVCodecContext.hwaccel_context.
*
* Use av_d3d11va_alloc_context() exclusively to allocate an AVD3D11VAContext.
*/
typedef struct AVD3D11VAContext {
/**
* D3D11 decoder object
*/
ID3D11VideoDecoder *decoder;
/**
* D3D11 VideoContext
*/
ID3D11VideoContext *video_context;
/**
* D3D11 configuration used to create the decoder
*/
D3D11_VIDEO_DECODER_CONFIG *cfg;
/**
* The number of surface in the surface array
*/
unsigned surface_count;
/**
* The array of Direct3D surfaces used to create the decoder
*/
ID3D11VideoDecoderOutputView **surface;
/**
* A bit field configuring the workarounds needed for using the decoder
*/
uint64_t workaround;
/**
* Private to the FFmpeg AVHWAccel implementation
*/
unsigned report_id;
/**
* Mutex to access video_context
*/
HANDLE context_mutex;
} AVD3D11VAContext;
/**
* Allocate an AVD3D11VAContext.
*
* @return Newly-allocated AVD3D11VAContext or NULL on failure.
*/
AVD3D11VAContext *av_d3d11va_alloc_context(void);
/**
* @}
*/
#endif /* AVCODEC_D3D11VA_H */
@@ -0,0 +1,362 @@
/*
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DEFS_H
#define AVCODEC_DEFS_H
/**
* @file
* @ingroup libavc
* Misc types and constants that do not belong anywhere else.
*/
#include <stdint.h>
#include <stdlib.h>
/**
* @ingroup lavc_decoding
* Required number of additionally allocated bytes at the end of the input bitstream for decoding.
* This is mainly needed because some optimized bitstream readers read
* 32 or 64 bit at once and could read over the end.<br>
* Note: If the first 23 bits of the additional bytes are not 0, then damaged
* MPEG bitstreams could cause overread and segfault.
*/
#define AV_INPUT_BUFFER_PADDING_SIZE 64
/**
* Verify checksums embedded in the bitstream (could be of either encoded or
* decoded data, depending on the format) and print an error message on mismatch.
* If AV_EF_EXPLODE is also set, a mismatching checksum will result in the
* decoder/demuxer returning an error.
*/
#define AV_EF_CRCCHECK (1<<0)
#define AV_EF_BITSTREAM (1<<1) ///< detect bitstream specification deviations
#define AV_EF_BUFFER (1<<2) ///< detect improper bitstream length
#define AV_EF_EXPLODE (1<<3) ///< abort decoding on minor error detection
#define AV_EF_IGNORE_ERR (1<<15) ///< ignore errors and continue
#define AV_EF_CAREFUL (1<<16) ///< consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors
#define AV_EF_COMPLIANT (1<<17) ///< consider all spec non compliances as errors
#define AV_EF_AGGRESSIVE (1<<18) ///< consider things that a sane encoder/muxer should not do as an error
#define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software.
#define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences.
#define FF_COMPLIANCE_NORMAL 0
#define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
#define AV_PROFILE_UNKNOWN -99
#define AV_PROFILE_RESERVED -100
#define AV_PROFILE_AAC_MAIN 0
#define AV_PROFILE_AAC_LOW 1
#define AV_PROFILE_AAC_SSR 2
#define AV_PROFILE_AAC_LTP 3
#define AV_PROFILE_AAC_HE 4
#define AV_PROFILE_AAC_HE_V2 28
#define AV_PROFILE_AAC_LD 22
#define AV_PROFILE_AAC_ELD 38
#define AV_PROFILE_AAC_USAC 41
#define AV_PROFILE_MPEG2_AAC_LOW 128
#define AV_PROFILE_MPEG2_AAC_HE 131
#define AV_PROFILE_DNXHD 0
#define AV_PROFILE_DNXHR_LB 1
#define AV_PROFILE_DNXHR_SQ 2
#define AV_PROFILE_DNXHR_HQ 3
#define AV_PROFILE_DNXHR_HQX 4
#define AV_PROFILE_DNXHR_444 5
#define AV_PROFILE_DTS 20
#define AV_PROFILE_DTS_ES 30
#define AV_PROFILE_DTS_96_24 40
#define AV_PROFILE_DTS_HD_HRA 50
#define AV_PROFILE_DTS_HD_MA 60
#define AV_PROFILE_DTS_EXPRESS 70
#define AV_PROFILE_DTS_HD_MA_X 61
#define AV_PROFILE_DTS_HD_MA_X_IMAX 62
#define AV_PROFILE_EAC3_DDP_ATMOS 30
#define AV_PROFILE_TRUEHD_ATMOS 30
#define AV_PROFILE_MPEG2_422 0
#define AV_PROFILE_MPEG2_HIGH 1
#define AV_PROFILE_MPEG2_SS 2
#define AV_PROFILE_MPEG2_SNR_SCALABLE 3
#define AV_PROFILE_MPEG2_MAIN 4
#define AV_PROFILE_MPEG2_SIMPLE 5
#define AV_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag
#define AV_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag
#define AV_PROFILE_H264_BASELINE 66
#define AV_PROFILE_H264_CONSTRAINED_BASELINE (66|AV_PROFILE_H264_CONSTRAINED)
#define AV_PROFILE_H264_MAIN 77
#define AV_PROFILE_H264_EXTENDED 88
#define AV_PROFILE_H264_HIGH 100
#define AV_PROFILE_H264_HIGH_10 110
#define AV_PROFILE_H264_HIGH_10_INTRA (110|AV_PROFILE_H264_INTRA)
#define AV_PROFILE_H264_MULTIVIEW_HIGH 118
#define AV_PROFILE_H264_HIGH_422 122
#define AV_PROFILE_H264_HIGH_422_INTRA (122|AV_PROFILE_H264_INTRA)
#define AV_PROFILE_H264_STEREO_HIGH 128
#define AV_PROFILE_H264_HIGH_444 144
#define AV_PROFILE_H264_HIGH_444_PREDICTIVE 244
#define AV_PROFILE_H264_HIGH_444_INTRA (244|AV_PROFILE_H264_INTRA)
#define AV_PROFILE_H264_CAVLC_444 44
#define AV_PROFILE_VC1_SIMPLE 0
#define AV_PROFILE_VC1_MAIN 1
#define AV_PROFILE_VC1_COMPLEX 2
#define AV_PROFILE_VC1_ADVANCED 3
#define AV_PROFILE_MPEG4_SIMPLE 0
#define AV_PROFILE_MPEG4_SIMPLE_SCALABLE 1
#define AV_PROFILE_MPEG4_CORE 2
#define AV_PROFILE_MPEG4_MAIN 3
#define AV_PROFILE_MPEG4_N_BIT 4
#define AV_PROFILE_MPEG4_SCALABLE_TEXTURE 5
#define AV_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION 6
#define AV_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE 7
#define AV_PROFILE_MPEG4_HYBRID 8
#define AV_PROFILE_MPEG4_ADVANCED_REAL_TIME 9
#define AV_PROFILE_MPEG4_CORE_SCALABLE 10
#define AV_PROFILE_MPEG4_ADVANCED_CODING 11
#define AV_PROFILE_MPEG4_ADVANCED_CORE 12
#define AV_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13
#define AV_PROFILE_MPEG4_SIMPLE_STUDIO 14
#define AV_PROFILE_MPEG4_ADVANCED_SIMPLE 15
#define AV_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0 1
#define AV_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1 2
#define AV_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION 32768
#define AV_PROFILE_JPEG2000_DCINEMA_2K 3
#define AV_PROFILE_JPEG2000_DCINEMA_4K 4
#define AV_PROFILE_VP9_0 0
#define AV_PROFILE_VP9_1 1
#define AV_PROFILE_VP9_2 2
#define AV_PROFILE_VP9_3 3
#define AV_PROFILE_HEVC_MAIN 1
#define AV_PROFILE_HEVC_MAIN_10 2
#define AV_PROFILE_HEVC_MAIN_STILL_PICTURE 3
#define AV_PROFILE_HEVC_REXT 4
#define AV_PROFILE_HEVC_MULTIVIEW_MAIN 6
#define AV_PROFILE_HEVC_SCC 9
#define AV_PROFILE_VVC_MAIN_10 1
#define AV_PROFILE_VVC_MAIN_10_444 33
#define AV_PROFILE_AV1_MAIN 0
#define AV_PROFILE_AV1_HIGH 1
#define AV_PROFILE_AV1_PROFESSIONAL 2
#define AV_PROFILE_MJPEG_HUFFMAN_BASELINE_DCT 0xc0
#define AV_PROFILE_MJPEG_HUFFMAN_EXTENDED_SEQUENTIAL_DCT 0xc1
#define AV_PROFILE_MJPEG_HUFFMAN_PROGRESSIVE_DCT 0xc2
#define AV_PROFILE_MJPEG_HUFFMAN_LOSSLESS 0xc3
#define AV_PROFILE_MJPEG_JPEG_LS 0xf7
#define AV_PROFILE_SBC_MSBC 1
#define AV_PROFILE_PRORES_PROXY 0
#define AV_PROFILE_PRORES_LT 1
#define AV_PROFILE_PRORES_STANDARD 2
#define AV_PROFILE_PRORES_HQ 3
#define AV_PROFILE_PRORES_4444 4
#define AV_PROFILE_PRORES_XQ 5
#define AV_PROFILE_PRORES_RAW 0
#define AV_PROFILE_PRORES_RAW_HQ 1
#define AV_PROFILE_ARIB_PROFILE_A 0
#define AV_PROFILE_ARIB_PROFILE_C 1
#define AV_PROFILE_KLVA_SYNC 0
#define AV_PROFILE_KLVA_ASYNC 1
#define AV_PROFILE_EVC_BASELINE 0
#define AV_PROFILE_EVC_MAIN 1
#define AV_PROFILE_APV_422_10 33
#define AV_PROFILE_APV_422_12 44
#define AV_PROFILE_APV_444_10 55
#define AV_PROFILE_APV_444_12 66
#define AV_PROFILE_APV_4444_10 77
#define AV_PROFILE_APV_4444_12 88
#define AV_PROFILE_APV_400_10 99
#define AV_LEVEL_UNKNOWN -99
enum AVFieldOrder {
AV_FIELD_UNKNOWN,
AV_FIELD_PROGRESSIVE,
AV_FIELD_TT, ///< Top coded_first, top displayed first
AV_FIELD_BB, ///< Bottom coded first, bottom displayed first
AV_FIELD_TB, ///< Top coded first, bottom displayed first
AV_FIELD_BT, ///< Bottom coded first, top displayed first
};
/**
* @ingroup lavc_decoding
*/
enum AVDiscard{
/* We leave some space between them for extensions (drop some
* keyframes for intra-only or drop just some bidir frames). */
AVDISCARD_NONE =-16, ///< discard nothing
AVDISCARD_DEFAULT = 0, ///< discard useless packets like 0 size packets in avi
AVDISCARD_NONREF = 8, ///< discard all non reference
AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
AVDISCARD_NONINTRA= 24, ///< discard all non intra frames
AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
AVDISCARD_ALL = 48, ///< discard all
};
enum AVAudioServiceType {
AV_AUDIO_SERVICE_TYPE_MAIN = 0,
AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4,
AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5,
AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6,
AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
AV_AUDIO_SERVICE_TYPE_KARAOKE = 8,
AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI
};
/**
* Pan Scan area.
* This specifies the area which should be displayed.
* Note there may be multiple such areas for one frame.
*/
typedef struct AVPanScan {
/**
* id
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int id;
/**
* width and height in 1/16 pel
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int width;
int height;
/**
* position of the top left corner in 1/16 pel for up to 3 fields/frames
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int16_t position[3][2];
} AVPanScan;
/**
* This structure describes the bitrate properties of an encoded bitstream. It
* roughly corresponds to a subset the VBV parameters for MPEG-2 or HRD
* parameters for H.264/HEVC.
*/
typedef struct AVCPBProperties {
/**
* Maximum bitrate of the stream, in bits per second.
* Zero if unknown or unspecified.
*/
int64_t max_bitrate;
/**
* Minimum bitrate of the stream, in bits per second.
* Zero if unknown or unspecified.
*/
int64_t min_bitrate;
/**
* Average bitrate of the stream, in bits per second.
* Zero if unknown or unspecified.
*/
int64_t avg_bitrate;
/**
* The size of the buffer to which the ratecontrol is applied, in bits.
* Zero if unknown or unspecified.
*/
int64_t buffer_size;
/**
* The delay between the time the packet this structure is associated with
* is received and the time when it should be decoded, in periods of a 27MHz
* clock.
*
* UINT64_MAX when unknown or unspecified.
*/
uint64_t vbv_delay;
} AVCPBProperties;
/**
* Allocate a CPB properties structure and initialize its fields to default
* values.
*
* @param size if non-NULL, the size of the allocated struct will be written
* here. This is useful for embedding it in side data.
*
* @return the newly allocated struct or NULL on failure
*/
AVCPBProperties *av_cpb_properties_alloc(size_t *size);
/**
* This structure supplies correlation between a packet timestamp and a wall clock
* production time. The definition follows the Producer Reference Time ('prft')
* as defined in ISO/IEC 14496-12
*/
typedef struct AVProducerReferenceTime {
/**
* A UTC timestamp, in microseconds, since Unix epoch (e.g, av_gettime()).
*/
int64_t wallclock;
int flags;
} AVProducerReferenceTime;
/**
* RTCP SR (Sender Report) information
*
* The received sender report information for an RTSP
* stream, exposed as AV_PKT_DATA_RTCP_SR side data.
*/
typedef struct AVRTCPSenderReport {
uint32_t ssrc; ///< Synchronization source identifier
uint64_t ntp_timestamp; ///< NTP time when the report was sent
uint32_t rtp_timestamp; ///< RTP time when the report was sent
uint32_t sender_nb_packets; ///< Total number of packets sent
uint32_t sender_nb_bytes; ///< Total number of bytes sent (excluding headers or padding)
} AVRTCPSenderReport;
/**
* Encode extradata length to a buffer. Used by xiph codecs.
*
* @param s buffer to write to; must be at least (v/255+1) bytes long
* @param v size of extradata in bytes
* @return number of bytes written to the buffer.
*/
unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
#endif // AVCODEC_DEFS_H
@@ -0,0 +1,135 @@
/*
* Copyright (C) 2007 Marco Gerards <marco@gnu.org>
* Copyright (C) 2009 David Conrad
* Copyright (C) 2011 Jordi Ortiz
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DIRAC_H
#define AVCODEC_DIRAC_H
/**
* @file
* Interface to Dirac Decoder/Encoder
* @author Marco Gerards <marco@gnu.org>
* @author David Conrad
* @author Jordi Ortiz
*/
#include <stddef.h>
#include <stdint.h>
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
/**
* The spec limits the number of wavelet decompositions to 4 for both
* level 1 (VC-2) and 128 (long-gop default).
* 5 decompositions is the maximum before >16-bit buffers are needed.
* Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
* the others to 4 decompositions (or 3 for the fidelity filter).
*
* We use this instead of MAX_DECOMPOSITIONS to save some memory.
*/
#define MAX_DWT_LEVELS 5
/**
* Parse code values:
*
* Dirac Specification ->
* 9.6.1 Table 9.1
*
* VC-2 Specification ->
* 10.4.1 Table 10.1
*/
enum DiracParseCodes {
DIRAC_PCODE_SEQ_HEADER = 0x00,
DIRAC_PCODE_END_SEQ = 0x10,
DIRAC_PCODE_AUX = 0x20,
DIRAC_PCODE_PAD = 0x30,
DIRAC_PCODE_PICTURE_CODED = 0x08,
DIRAC_PCODE_PICTURE_RAW = 0x48,
DIRAC_PCODE_PICTURE_LOW_DEL = 0xC8,
DIRAC_PCODE_PICTURE_HQ = 0xE8,
DIRAC_PCODE_INTER_NOREF_CO1 = 0x0A,
DIRAC_PCODE_INTER_NOREF_CO2 = 0x09,
DIRAC_PCODE_INTER_REF_CO1 = 0x0D,
DIRAC_PCODE_INTER_REF_CO2 = 0x0E,
DIRAC_PCODE_INTRA_REF_CO = 0x0C,
DIRAC_PCODE_INTRA_REF_RAW = 0x4C,
DIRAC_PCODE_INTRA_REF_PICT = 0xCC,
DIRAC_PCODE_MAGIC = 0x42424344,
};
typedef struct DiracVersionInfo {
int major;
int minor;
} DiracVersionInfo;
typedef struct AVDiracSeqHeader {
unsigned width;
unsigned height;
uint8_t chroma_format; ///< 0: 444 1: 422 2: 420
uint8_t interlaced;
uint8_t top_field_first;
uint8_t frame_rate_index; ///< index into dirac_frame_rate[]
uint8_t aspect_ratio_index; ///< index into dirac_aspect_ratio[]
uint16_t clean_width;
uint16_t clean_height;
uint16_t clean_left_offset;
uint16_t clean_right_offset;
uint8_t pixel_range_index; ///< index into dirac_pixel_range_presets[]
uint8_t color_spec_index; ///< index into dirac_color_spec_presets[]
int profile;
int level;
AVRational framerate;
AVRational sample_aspect_ratio;
enum AVPixelFormat pix_fmt;
enum AVColorRange color_range;
enum AVColorPrimaries color_primaries;
enum AVColorTransferCharacteristic color_trc;
enum AVColorSpace colorspace;
DiracVersionInfo version;
int bit_depth;
} AVDiracSeqHeader;
/**
* Parse a Dirac sequence header.
*
* @param dsh this function will allocate and fill an AVDiracSeqHeader struct
* and write it into this pointer. The caller must free it with
* av_free().
* @param buf the data buffer
* @param buf_size the size of the data buffer in bytes
* @param log_ctx if non-NULL, this function will log errors here
* @return 0 on success, a negative AVERROR code on failure
*/
int av_dirac_parse_sequence_header(AVDiracSeqHeader **dsh,
const uint8_t *buf, size_t buf_size,
void *log_ctx);
#endif /* AVCODEC_DIRAC_H */
@@ -0,0 +1,82 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DV_PROFILE_H
#define AVCODEC_DV_PROFILE_H
#include <stdint.h>
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
/* minimum number of bytes to read from a DV stream in order to
* determine the profile */
#define DV_PROFILE_BYTES (6 * 80) /* 6 DIF blocks */
/*
* AVDVProfile is used to express the differences between various
* DV flavors. For now it's primarily used for differentiating
* 525/60 and 625/50, but the plans are to use it for various
* DV specs as well (e.g. SMPTE314M vs. IEC 61834).
*/
typedef struct AVDVProfile {
int dsf; /* value of the dsf in the DV header */
int video_stype; /* stype for VAUX source pack */
int frame_size; /* total size of one frame in bytes */
int difseg_size; /* number of DIF segments per DIF channel */
int n_difchan; /* number of DIF channels per frame */
AVRational time_base; /* 1/framerate */
int ltc_divisor; /* FPS from the LTS standpoint */
int height; /* picture height in pixels */
int width; /* picture width in pixels */
AVRational sar[2]; /* sample aspect ratios for 4:3 and 16:9 */
enum AVPixelFormat pix_fmt; /* picture pixel format */
int bpm; /* blocks per macroblock */
const uint8_t *block_sizes; /* AC block sizes, in bits */
int audio_stride; /* size of audio_shuffle table */
int audio_min_samples[3]; /* min amount of audio samples */
/* for 48kHz, 44.1kHz and 32kHz */
int audio_samples_dist[5]; /* how many samples are supposed to be */
/* in each frame in a 5 frames window */
const uint8_t (*audio_shuffle)[9]; /* PCM shuffling table */
} AVDVProfile;
/**
* Get a DV profile for the provided compressed frame.
*
* @param sys the profile used for the previous frame, may be NULL
* @param frame the compressed data buffer
* @param buf_size size of the buffer in bytes
* @return the DV profile for the supplied data or NULL on failure
*/
const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
const uint8_t *frame, unsigned buf_size);
/**
* Get a DV profile for the provided stream parameters.
*/
const AVDVProfile *av_dv_codec_profile(int width, int height, enum AVPixelFormat pix_fmt);
/**
* Get a DV profile for the provided stream parameters.
* The frame rate is used as a best-effort parameter.
*/
const AVDVProfile *av_dv_codec_profile2(int width, int height, enum AVPixelFormat pix_fmt, AVRational frame_rate);
#endif /* AVCODEC_DV_PROFILE_H */
@@ -0,0 +1,90 @@
/*
* DXVA2 HW acceleration
*
* copyright (c) 2009 Laurent Aimar
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DXVA2_H
#define AVCODEC_DXVA2_H
/**
* @file
* @ingroup lavc_codec_hwaccel_dxva2
* Public libavcodec DXVA2 header.
*/
#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0602
#endif
#include <stdint.h>
#include <d3d9.h>
#include <dxva2api.h>
/**
* @defgroup lavc_codec_hwaccel_dxva2 DXVA2
* @ingroup lavc_codec_hwaccel
*
* @{
*/
/**
* This structure is used to provides the necessary configurations and data
* to the DXVA2 FFmpeg HWAccel implementation.
*
* The application must make it available as AVCodecContext.hwaccel_context.
*/
struct dxva_context {
/**
* DXVA2 decoder object
*/
IDirectXVideoDecoder *decoder;
/**
* DXVA2 configuration used to create the decoder
*/
const DXVA2_ConfigPictureDecode *cfg;
/**
* The number of surface in the surface array
*/
unsigned surface_count;
/**
* The array of Direct3D surfaces used to create the decoder
*/
LPDIRECT3DSURFACE9 *surface;
/**
* A bit field configuring the workarounds needed for using the decoder
*/
uint64_t workaround;
/**
* Private to the FFmpeg AVHWAccel implementation
*/
unsigned report_id;
};
/**
* @}
*/
#endif /* AVCODEC_DXVA2_H */
@@ -0,0 +1,229 @@
/*
* EXIF metadata parser
* Copyright (c) 2013 Thilo Borgmann <thilo.borgmann _at_ mail.de>
* Copyright (c) 2024-2025 Leo Izen <leo.izen@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* EXIF metadata parser
* @author Thilo Borgmann <thilo.borgmann _at_ mail.de>
* @author Leo Izen <leo.izen@gmail.com>
*/
#ifndef AVCODEC_EXIF_H
#define AVCODEC_EXIF_H
#include <stddef.h>
#include <stdint.h>
#include "libavutil/buffer.h"
#include "libavutil/dict.h"
#include "libavutil/rational.h"
#include "version_major.h"
/** Data type identifiers for TIFF tags */
enum AVTiffDataType {
AV_TIFF_BYTE = 1,
AV_TIFF_STRING,
AV_TIFF_SHORT,
AV_TIFF_LONG,
AV_TIFF_RATIONAL,
AV_TIFF_SBYTE,
AV_TIFF_UNDEFINED,
AV_TIFF_SSHORT,
AV_TIFF_SLONG,
AV_TIFF_SRATIONAL,
AV_TIFF_FLOAT,
AV_TIFF_DOUBLE,
AV_TIFF_IFD,
};
enum AVExifHeaderMode {
/**
* The TIFF header starts with 0x49492a00, or 0x4d4d002a.
* This one is used internally by FFmpeg.
*/
AV_EXIF_TIFF_HEADER,
/** skip the TIFF header, assume little endian */
AV_EXIF_ASSUME_LE,
/** skip the TIFF header, assume big endian */
AV_EXIF_ASSUME_BE,
/** The first four bytes point to the actual start, then it's AV_EXIF_TIFF_HEADER */
AV_EXIF_T_OFF,
/** The first six bytes contain "Exif\0\0", then it's AV_EXIF_TIFF_HEADER */
AV_EXIF_EXIF00,
};
typedef struct AVExifEntry AVExifEntry;
typedef struct AVExifMetadata {
/* array of EXIF metadata entries */
AVExifEntry *entries;
/* number of entries in this array */
unsigned int count;
/* size of the buffer, used for av_fast_realloc */
unsigned int size;
} AVExifMetadata;
struct AVExifEntry {
uint16_t id;
enum AVTiffDataType type;
uint32_t count;
/*
* These are for IFD-style MakerNote
* entries which occur after a fixed
* offset rather than at the start of
* the entry. The ifd_lead field contains
* the leading bytes which typically
* identify the type of MakerNote.
*/
uint32_t ifd_offset;
uint8_t *ifd_lead;
/*
* An array of entries of size count
* Unless it's an IFD, in which case
* it's not an array and count = 1
*/
union {
void *ptr;
int64_t *sint;
uint64_t *uint;
double *dbl;
char *str;
uint8_t *ubytes;
int8_t *sbytes;
AVRational *rat;
AVExifMetadata ifd;
} value;
};
/**
* Retrieves the tag name associated with the provided tag ID.
* If the tag ID is unknown, NULL is returned.
*
* For example, av_exif_get_tag_name(0x112) returns "Orientation".
*/
const char *av_exif_get_tag_name(uint16_t id);
/**
* Retrieves the tag ID associated with the provided tag string name.
* If the tag name is unknown, a negative number is returned. Otherwise
* it always fits inside a uint16_t integer.
*
* For example, av_exif_get_tag_id("Orientation") returns 274 (0x0112).
*/
int32_t av_exif_get_tag_id(const char *name);
/**
* Add an entry to the provided EXIF metadata struct. If one already exists with the provided
* ID, it will set the existing one to have the other information provided. Otherwise, it
* will allocate a new entry.
*
* This function reallocates ifd->entries using av_realloc and allocates (using av_malloc)
* a new value member of the entry, then copies the contents of value into that buffer.
*/
int av_exif_set_entry(void *logctx, AVExifMetadata *ifd, uint16_t id, enum AVTiffDataType type,
uint32_t count, const uint8_t *ifd_lead, uint32_t ifd_offset, const void *value);
/**
* Also check subdirectories.
*/
#define AV_EXIF_FLAG_RECURSIVE (1 << 0)
/**
* Get an entry with the tagged ID from the EXIF metadata struct. A pointer to the entry
* will be written into *value.
*
* If the entry was present and returned successfully, a positive number is returned.
* If the entry was not found, *value is left untouched and zero is returned.
* If an error occurred, a negative number is returned.
*/
int av_exif_get_entry(void *logctx, AVExifMetadata *ifd, uint16_t id, int flags, AVExifEntry **value);
/**
* Remove an entry from the provided EXIF metadata struct.
*
* If the entry was present and removed successfully, a positive number is returned.
* If the entry was not found, zero is returned.
* If an error occurred, a negative number is returned.
*/
int av_exif_remove_entry(void *logctx, AVExifMetadata *ifd, uint16_t id, int flags);
/**
* Decodes the EXIF data provided in the buffer and writes it into the
* struct *ifd. If this function succeeds, the IFD is owned by the caller
* and must be cleared after use by calling av_exif_free(); If this function
* fails and returns a negative value, it will call av_exif_free(ifd) before
* returning.
*/
int av_exif_parse_buffer(void *logctx, const uint8_t *data, size_t size,
AVExifMetadata *ifd, enum AVExifHeaderMode header_mode);
/**
* Allocates a buffer using av_malloc of an appropriate size and writes the
* EXIF data represented by ifd into that buffer.
*
* Upon error, *buffer will be NULL. The buffer becomes owned by the caller upon
* success. The *buffer argument must be NULL before calling.
*/
int av_exif_write(void *logctx, const AVExifMetadata *ifd, AVBufferRef **buffer, enum AVExifHeaderMode header_mode);
/**
* Frees all resources associated with the given EXIF metadata struct.
* Does not free the pointer passed itself, in case it is stack-allocated.
* The pointer passed to this function must be freed by the caller,
* if it is heap-allocated. Passing NULL is permitted.
*/
void av_exif_free(AVExifMetadata *ifd);
/**
* Recursively reads all tags from the IFD and stores them in the
* provided metadata dictionary.
*/
int av_exif_ifd_to_dict(void *logctx, const AVExifMetadata *ifd, AVDictionary **metadata);
/**
* Allocates a duplicate of the provided EXIF metadata struct. The caller owns
* the duplicate and must free it with av_exif_free. Returns NULL if the duplication
* process failed.
*/
AVExifMetadata *av_exif_clone_ifd(const AVExifMetadata *ifd);
/**
* Convert a display matrix used by AV_FRAME_DATA_DISPLAYMATRIX
* into an orientation constant used by EXIF's orientation tag.
*
* Returns an EXIF orientation between 1 and 8 (inclusive) depending
* on the rotation and flip factors. Returns 0 if the matrix is singular.
*/
int av_exif_matrix_to_orientation(const int32_t *matrix);
/**
* Convert an orientation constant used by EXIF's orientation tag
* into a display matrix used by AV_FRAME_DATA_DISPLAYMATRIX.
*
* Returns 0 on success and negative if the orientation is invalid,
* i.e. not between 1 and 8 (inclusive).
*/
int av_exif_orientation_to_matrix(int32_t *matrix, int orientation);
#endif /* AVCODEC_EXIF_H */
@@ -0,0 +1,67 @@
/*
* JNI public API functions
*
* Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_JNI_H
#define AVCODEC_JNI_H
/*
* Manually set a Java virtual machine which will be used to retrieve the JNI
* environment. Once a Java VM is set it cannot be changed afterwards, meaning
* you can call multiple times av_jni_set_java_vm with the same Java VM pointer
* however it will error out if you try to set a different Java VM.
*
* @param vm Java virtual machine
* @param log_ctx context used for logging, can be NULL
* @return 0 on success, < 0 otherwise
*/
int av_jni_set_java_vm(void *vm, void *log_ctx);
/*
* Get the Java virtual machine which has been set with av_jni_set_java_vm.
*
* @param vm Java virtual machine
* @return a pointer to the Java virtual machine
*/
void *av_jni_get_java_vm(void *log_ctx);
/*
* Set the Android application context which will be used to retrieve the Android
* content resolver to handle content uris.
*
* This function is only available on Android.
*
* @param app_ctx global JNI reference to the Android application context
* @return 0 on success, < 0 otherwise
*/
int av_jni_set_android_app_ctx(void *app_ctx, void *log_ctx);
/*
* Get the Android application context that has been set with
* av_jni_set_android_app_ctx.
*
* This function is only available on Android.
*
* @return a pointer the the Android application context
*/
void *av_jni_get_android_app_ctx(void);
#endif /* AVCODEC_JNI_H */
@@ -0,0 +1,103 @@
/*
* Android MediaCodec public API
*
* Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_MEDIACODEC_H
#define AVCODEC_MEDIACODEC_H
#include "libavcodec/avcodec.h"
/**
* This structure holds a reference to a android/view/Surface object that will
* be used as output by the decoder.
*
*/
typedef struct AVMediaCodecContext {
/**
* android/view/Surface object reference.
*/
void *surface;
} AVMediaCodecContext;
/**
* Allocate and initialize a MediaCodec context.
*
* When decoding with MediaCodec is finished, the caller must free the
* MediaCodec context with av_mediacodec_default_free.
*
* @return a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise
*/
AVMediaCodecContext *av_mediacodec_alloc_context(void);
/**
* Convenience function that sets up the MediaCodec context.
*
* @param avctx codec context
* @param ctx MediaCodec context to initialize
* @param surface reference to an android/view/Surface
* @return 0 on success, < 0 otherwise
*/
int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface);
/**
* This function must be called to free the MediaCodec context initialized with
* av_mediacodec_default_init().
*
* @param avctx codec context
*/
void av_mediacodec_default_free(AVCodecContext *avctx);
/**
* Opaque structure representing a MediaCodec buffer to render.
*/
typedef struct MediaCodecBuffer AVMediaCodecBuffer;
/**
* Release a MediaCodec buffer and render it to the surface that is associated
* with the decoder. This function should only be called once on a given
* buffer, once released the underlying buffer returns to the codec, thus
* subsequent calls to this function will have no effect.
*
* @param buffer the buffer to render
* @param render 1 to release and render the buffer to the surface or 0 to
* discard the buffer
* @return 0 on success, < 0 otherwise
*/
int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render);
/**
* Release a MediaCodec buffer and render it at the given time to the surface
* that is associated with the decoder. The timestamp must be within one second
* of the current `java/lang/System#nanoTime()` (which is implemented using
* `CLOCK_MONOTONIC` on Android). See the Android MediaCodec documentation
* of [`android/media/MediaCodec#releaseOutputBuffer(int,long)`][0] for more details.
*
* @param buffer the buffer to render
* @param time timestamp in nanoseconds of when to render the buffer
* @return 0 on success, < 0 otherwise
*
* [0]: https://developer.android.com/reference/android/media/MediaCodec#releaseOutputBuffer(int,%20long)
*/
int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time);
#endif /* AVCODEC_MEDIACODEC_H */
@@ -0,0 +1,943 @@
/*
* AVPacket public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_PACKET_H
#define AVCODEC_PACKET_H
#include <stddef.h>
#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/buffer.h"
#include "libavutil/dict.h"
#include "libavutil/rational.h"
#include "libavutil/version.h"
#include "libavcodec/version_major.h"
/**
* @defgroup lavc_packet_side_data AVPacketSideData
*
* Types and functions for working with AVPacketSideData.
* @{
*/
enum AVPacketSideDataType {
/**
* An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE
* bytes worth of palette. This side data signals that a new palette is
* present.
*/
AV_PKT_DATA_PALETTE,
/**
* The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format
* that the extradata buffer was changed and the receiving side should
* act upon it appropriately. The new extradata is embedded in the side
* data buffer and should be immediately used for processing the current
* frame or packet.
*/
AV_PKT_DATA_NEW_EXTRADATA,
/**
* An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
* @code
* u32le param_flags
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
* s32le sample_rate
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
* s32le width
* s32le height
* @endcode
*/
AV_PKT_DATA_PARAM_CHANGE,
/**
* An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of
* structures with info about macroblocks relevant to splitting the
* packet into smaller packets on macroblock edges (e.g. as for RFC 2190).
* That is, it does not necessarily contain info about all macroblocks,
* as long as the distance between macroblocks in the info is smaller
* than the target payload size.
* Each MB info structure is 12 bytes, and is laid out as follows:
* @code
* u32le bit offset from the start of the packet
* u8 current quantizer at the start of the macroblock
* u8 GOB number
* u16le macroblock address within the GOB
* u8 horizontal MV predictor
* u8 vertical MV predictor
* u8 horizontal MV predictor for block number 3
* u8 vertical MV predictor for block number 3
* @endcode
*/
AV_PKT_DATA_H263_MB_INFO,
/**
* This side data should be associated with an audio stream and contains
* ReplayGain information in form of the AVReplayGain struct.
*/
AV_PKT_DATA_REPLAYGAIN,
/**
* This side data contains a 3x3 transformation matrix describing an affine
* transformation that needs to be applied to the decoded video frames for
* correct presentation.
*
* See libavutil/display.h for a detailed description of the data.
*/
AV_PKT_DATA_DISPLAYMATRIX,
/**
* This side data should be associated with a video stream and contains
* Stereoscopic 3D information in form of the AVStereo3D struct.
*/
AV_PKT_DATA_STEREO3D,
/**
* This side data should be associated with an audio stream and corresponds
* to enum AVAudioServiceType.
*/
AV_PKT_DATA_AUDIO_SERVICE_TYPE,
/**
* This side data contains quality related information from the encoder.
* @code
* u32le quality factor of the compressed frame. Allowed range is between 1 (good) and FF_LAMBDA_MAX (bad).
* u8 picture type
* u8 error count
* u16 reserved
* u64le[error count] sum of squared differences between encoder in and output
* @endcode
*/
AV_PKT_DATA_QUALITY_STATS,
/**
* This side data contains an integer value representing the stream index
* of a "fallback" track. A fallback track indicates an alternate
* track to use when the current track can not be decoded for some reason.
* e.g. no decoder available for codec.
*/
AV_PKT_DATA_FALLBACK_TRACK,
/**
* This side data corresponds to the AVCPBProperties struct.
*/
AV_PKT_DATA_CPB_PROPERTIES,
/**
* Recommends skipping the specified number of samples
* @code
* u32le number of samples to skip from start of this packet
* u32le number of samples to skip from end of this packet
* u8 reason for start skip
* u8 reason for end skip (0=padding silence, 1=convergence)
* @endcode
*/
AV_PKT_DATA_SKIP_SAMPLES,
/**
* An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
* the packet may contain "dual mono" audio specific to Japanese DTV
* and if it is true, recommends only the selected channel to be used.
* @code
* u8 selected channels (0=main/left, 1=sub/right, 2=both)
* @endcode
*/
AV_PKT_DATA_JP_DUALMONO,
/**
* A list of zero terminated key/value strings. There is no end marker for
* the list, so it is required to rely on the side data size to stop.
*/
AV_PKT_DATA_STRINGS_METADATA,
/**
* Subtitle event position
* @code
* u32le x1
* u32le y1
* u32le x2
* u32le y2
* @endcode
*/
AV_PKT_DATA_SUBTITLE_POSITION,
/**
* Data found in BlockAdditional element of matroska container. There is
* no end marker for the data, so it is required to rely on the side data
* size to recognize the end. 8 byte id (as found in BlockAddId) followed
* by data.
*/
AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
/**
* The optional first identifier line of a WebVTT cue.
*/
AV_PKT_DATA_WEBVTT_IDENTIFIER,
/**
* The optional settings (rendering instructions) that immediately
* follow the timestamp specifier of a WebVTT cue.
*/
AV_PKT_DATA_WEBVTT_SETTINGS,
/**
* A list of zero terminated key/value strings. There is no end marker for
* the list, so it is required to rely on the side data size to stop. This
* side data includes updated metadata which appeared in the stream.
*/
AV_PKT_DATA_METADATA_UPDATE,
/**
* MPEGTS stream ID as uint8_t, this is required to pass the stream ID
* information from the demuxer to the corresponding muxer.
*/
AV_PKT_DATA_MPEGTS_STREAM_ID,
/**
* Mastering display metadata (based on SMPTE-2086:2014). This metadata
* should be associated with a video stream and contains data in the form
* of the AVMasteringDisplayMetadata struct.
*/
AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
/**
* This side data should be associated with a video stream and corresponds
* to the AVSphericalMapping structure.
*/
AV_PKT_DATA_SPHERICAL,
/**
* Content light level (based on CTA-861.3). This metadata should be
* associated with a video stream and contains data in the form of the
* AVContentLightMetadata struct.
*/
AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
/**
* ATSC A53 Part 4 Closed Captions. This metadata should be associated with
* a video stream. A53 CC bitstream is stored as uint8_t in AVPacketSideData.data.
* The number of bytes of CC data is AVPacketSideData.size.
*/
AV_PKT_DATA_A53_CC,
/**
* This side data is encryption initialization data.
* The format is not part of ABI, use av_encryption_init_info_* methods to
* access.
*/
AV_PKT_DATA_ENCRYPTION_INIT_INFO,
/**
* This side data contains encryption info for how to decrypt the packet.
* The format is not part of ABI, use av_encryption_info_* methods to access.
*/
AV_PKT_DATA_ENCRYPTION_INFO,
/**
* Active Format Description data consisting of a single byte as specified
* in ETSI TS 101 154 using AVActiveFormatDescription enum.
*/
AV_PKT_DATA_AFD,
/**
* Producer Reference Time data corresponding to the AVProducerReferenceTime struct,
* usually exported by some encoders (on demand through the prft flag set in the
* AVCodecContext export_side_data field).
*/
AV_PKT_DATA_PRFT,
/**
* ICC profile data consisting of an opaque octet buffer following the
* format described by ISO 15076-1.
*/
AV_PKT_DATA_ICC_PROFILE,
/**
* DOVI configuration
* ref:
* dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2.1.2, section 2.2
* dolby-vision-bitstreams-in-mpeg-2-transport-stream-multiplex-v1.2, section 3.3
* Tags are stored in struct AVDOVIDecoderConfigurationRecord.
*/
AV_PKT_DATA_DOVI_CONF,
/**
* Timecode which conforms to SMPTE ST 12-1:2014. The data is an array of 4 uint32_t
* where the first uint32_t describes how many (1-3) of the other timecodes are used.
* The timecode format is described in the documentation of av_timecode_get_smpte_from_framenum()
* function in libavutil/timecode.h.
*/
AV_PKT_DATA_S12M_TIMECODE,
/**
* HDR10+ dynamic metadata associated with a video frame. The metadata is in
* the form of the AVDynamicHDRPlus struct and contains
* information for color volume transform - application 4 of
* SMPTE 2094-40:2016 standard.
*/
AV_PKT_DATA_DYNAMIC_HDR10_PLUS,
/**
* IAMF Mix Gain Parameter Data associated with the audio frame. This metadata
* is in the form of the AVIAMFParamDefinition struct and contains information
* defined in sections 3.6.1 and 3.8.1 of the Immersive Audio Model and
* Formats standard.
*/
AV_PKT_DATA_IAMF_MIX_GAIN_PARAM,
/**
* IAMF Demixing Info Parameter Data associated with the audio frame. This
* metadata is in the form of the AVIAMFParamDefinition struct and contains
* information defined in sections 3.6.1 and 3.8.2 of the Immersive Audio Model
* and Formats standard.
*/
AV_PKT_DATA_IAMF_DEMIXING_INFO_PARAM,
/**
* IAMF Recon Gain Info Parameter Data associated with the audio frame. This
* metadata is in the form of the AVIAMFParamDefinition struct and contains
* information defined in sections 3.6.1 and 3.8.3 of the Immersive Audio Model
* and Formats standard.
*/
AV_PKT_DATA_IAMF_RECON_GAIN_INFO_PARAM,
/**
* Ambient viewing environment metadata, as defined by H.274. This metadata
* should be associated with a video stream and contains data in the form
* of the AVAmbientViewingEnvironment struct.
*/
AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT,
/**
* The number of pixels to discard from the top/bottom/left/right border of the
* decoded frame to obtain the sub-rectangle intended for presentation.
*
* @code
* u32le crop_top
* u32le crop_bottom
* u32le crop_left
* u32le crop_right
* @endcode
*/
AV_PKT_DATA_FRAME_CROPPING,
/**
* Raw LCEVC payload data, as a uint8_t array, with NAL emulation
* bytes intact.
*/
AV_PKT_DATA_LCEVC,
/**
* This side data contains information about the reference display width(s)
* and reference viewing distance(s) as well as information about the
* corresponding reference stereo pair(s), i.e., the pair(s) of views to be
* displayed for the viewer's left and right eyes on the reference display
* at the reference viewing distance.
* The payload is the AV3DReferenceDisplaysInfo struct defined in
* libavutil/tdrdi.h.
*/
AV_PKT_DATA_3D_REFERENCE_DISPLAYS,
/**
* Contains the last received RTCP SR (Sender Report) information
* in the form of the AVRTCPSenderReport struct.
*/
AV_PKT_DATA_RTCP_SR,
/**
* Extensible image file format metadata. The payload is a buffer containing
* EXIF metadata, starting with either 49 49 2a 00, or 4d 4d 00 2a.
*/
AV_PKT_DATA_EXIF,
/**
* The number of side data types.
* This is not part of the public API/ABI in the sense that it may
* change when new side data types are added.
* This must stay the last enum value.
* If its value becomes huge, some code using it
* needs to be updated as it assumes it to be smaller than other limits.
*/
AV_PKT_DATA_NB
};
/**
* This structure stores auxiliary information for decoding, presenting, or
* otherwise processing the coded stream. It is typically exported by demuxers
* and encoders and can be fed to decoders and muxers either in a per packet
* basis, or as global side data (applying to the entire coded stream).
*
* Global side data is handled as follows:
* - During demuxing, it may be exported through
* @ref AVCodecParameters.coded_side_data "AVStream's codec parameters", which can
* then be passed as input to decoders through the
* @ref AVCodecContext.coded_side_data "decoder context's side data", for
* initialization.
* - For muxing, it can be fed through @ref AVCodecParameters.coded_side_data
* "AVStream's codec parameters", typically the output of encoders through
* the @ref AVCodecContext.coded_side_data "encoder context's side data", for
* initialization.
*
* Packet specific side data is handled as follows:
* - During demuxing, it may be exported through @ref AVPacket.side_data
* "AVPacket's side data", which can then be passed as input to decoders.
* - For muxing, it can be fed through @ref AVPacket.side_data "AVPacket's
* side data", typically the output of encoders.
*
* Different modules may accept or export different types of side data
* depending on media type and codec. Refer to @ref AVPacketSideDataType for a
* list of defined types and where they may be found or used.
*/
typedef struct AVPacketSideData {
uint8_t *data;
size_t size;
enum AVPacketSideDataType type;
} AVPacketSideData;
/**
* Allocate a new packet side data.
*
* @param sd pointer to an array of side data to which the side data should
* be added. *sd may be NULL, in which case the array will be
* initialized.
* @param nb_sd pointer to an integer containing the number of entries in
* the array. The integer value will be increased by 1 on success.
* @param type side data type
* @param size desired side data size
* @param flags currently unused. Must be zero
*
* @return pointer to freshly allocated side data on success, or NULL otherwise.
*/
AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd,
enum AVPacketSideDataType type,
size_t size, int flags);
/**
* Wrap existing data as packet side data.
*
* @param sd pointer to an array of side data to which the side data should
* be added. *sd may be NULL, in which case the array will be
* initialized
* @param nb_sd pointer to an integer containing the number of entries in
* the array. The integer value will be increased by 1 on success.
* @param type side data type
* @param data a data array. It must be allocated with the av_malloc() family
* of functions. The ownership of the data is transferred to the
* side data array on success
* @param size size of the data array
* @param flags currently unused. Must be zero
*
* @return pointer to freshly allocated side data on success, or NULL otherwise
* On failure, the side data array is unchanged and the data remains
* owned by the caller.
*/
AVPacketSideData *av_packet_side_data_add(AVPacketSideData **sd, int *nb_sd,
enum AVPacketSideDataType type,
void *data, size_t size, int flags);
/**
* Get side information from a side data array.
*
* @param sd the array from which the side data should be fetched
* @param nb_sd value containing the number of entries in the array.
* @param type desired side information type
*
* @return pointer to side data if present or NULL otherwise
*/
const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd,
int nb_sd,
enum AVPacketSideDataType type);
/**
* Remove side data of the given type from a side data array.
*
* @param sd the array from which the side data should be removed
* @param nb_sd pointer to an integer containing the number of entries in
* the array. Will be reduced by the amount of entries removed
* upon return
* @param type side information type
*/
void av_packet_side_data_remove(AVPacketSideData *sd, int *nb_sd,
enum AVPacketSideDataType type);
/**
* Convenience function to free all the side data stored in an array, and
* the array itself.
*
* @param sd pointer to array of side data to free. Will be set to NULL
* upon return.
* @param nb_sd pointer to an integer containing the number of entries in
* the array. Will be set to 0 upon return.
*/
void av_packet_side_data_free(AVPacketSideData **sd, int *nb_sd);
struct AVFrameSideData;
/**
* Add a new packet side data entry to an array based on existing frame
* side data, if a matching type exists for packet side data.
*
* @param flags Currently unused. Must be 0.
* @retval >= 0 Success
* @retval AVERROR(EINVAL) The frame side data type does not have a matching
* packet side data type.
* @retval AVERROR(ENOMEM) Failed to add a side data entry to the array, or
* similar.
*/
int av_packet_side_data_from_frame(AVPacketSideData **sd, int *nb_sd,
const struct AVFrameSideData *src, unsigned int flags);
/**
* Add a new frame side data entry to an array based on existing packet
* side data, if a matching type exists for frame side data.
*
* @param flags Some combination of AV_FRAME_SIDE_DATA_FLAG_* flags,
* or 0.
* @retval >= 0 Success
* @retval AVERROR(EINVAL) The packet side data type does not have a matching
* frame side data type.
* @retval AVERROR(ENOMEM) Failed to add a side data entry to the array, or
* similar.
*/
int av_packet_side_data_to_frame(struct AVFrameSideData ***sd, int *nb_sd,
const AVPacketSideData *src, unsigned int flags);
const char *av_packet_side_data_name(enum AVPacketSideDataType type);
/**
* @}
*/
/**
* @defgroup lavc_packet AVPacket
*
* Types and functions for working with AVPacket.
* @{
*/
/**
* This structure stores compressed data. It is typically exported by demuxers
* and then passed as input to decoders, or received as output from encoders and
* then passed to muxers.
*
* For video, it should typically contain one compressed frame. For audio it may
* contain several compressed frames. Encoders are allowed to output empty
* packets, with no compressed data, containing only side data
* (e.g. to update some stream parameters at the end of encoding).
*
* The semantics of data ownership depends on the buf field.
* If it is set, the packet data is dynamically allocated and is
* valid indefinitely until a call to av_packet_unref() reduces the
* reference count to 0.
*
* If the buf field is not set av_packet_ref() would make a copy instead
* of increasing the reference count.
*
* The side data is always allocated with av_malloc(), copied by
* av_packet_ref() and freed by av_packet_unref().
*
* sizeof(AVPacket) being a part of the public ABI is deprecated. once
* av_init_packet() is removed, new packets will only be able to be allocated
* with av_packet_alloc(), and new fields may be added to the end of the struct
* with a minor bump.
*
* @see av_packet_alloc
* @see av_packet_ref
* @see av_packet_unref
*/
typedef struct AVPacket {
/**
* A reference to the reference-counted buffer where the packet data is
* stored.
* May be NULL, then the packet data is not reference-counted.
*/
AVBufferRef *buf;
/**
* Presentation timestamp in AVStream->time_base units; the time at which
* the decompressed packet will be presented to the user.
* Can be AV_NOPTS_VALUE if it is not stored in the file.
* pts MUST be larger or equal to dts as presentation cannot happen before
* decompression, unless one wants to view hex dumps. Some formats misuse
* the terms dts and pts/cts to mean something different. Such timestamps
* must be converted to true pts/dts before they are stored in AVPacket.
*/
int64_t pts;
/**
* Decompression timestamp in AVStream->time_base units; the time at which
* the packet is decompressed.
* Can be AV_NOPTS_VALUE if it is not stored in the file.
*/
int64_t dts;
uint8_t *data;
int size;
int stream_index;
/**
* A combination of AV_PKT_FLAG values
*/
int flags;
/**
* Additional packet data that can be provided by the container.
* Packet can contain several types of side information.
*/
AVPacketSideData *side_data;
int side_data_elems;
/**
* Duration of this packet in AVStream->time_base units, 0 if unknown.
* Equals next_pts - this_pts in presentation order.
*/
int64_t duration;
int64_t pos; ///< byte position in stream, -1 if unknown
/**
* for some private data of the user
*/
void *opaque;
/**
* AVBufferRef for free use by the API user. FFmpeg will never check the
* contents of the buffer ref. FFmpeg calls av_buffer_unref() on it when
* the packet is unreferenced. av_packet_copy_props() calls create a new
* reference with av_buffer_ref() for the target packet's opaque_ref field.
*
* This is unrelated to the opaque field, although it serves a similar
* purpose.
*/
AVBufferRef *opaque_ref;
/**
* Time base of the packet's timestamps.
* In the future, this field may be set on packets output by encoders or
* demuxers, but its value will be by default ignored on input to decoders
* or muxers.
*/
AVRational time_base;
} AVPacket;
#if FF_API_INIT_PACKET
attribute_deprecated
typedef struct AVPacketList {
AVPacket pkt;
struct AVPacketList *next;
} AVPacketList;
#endif
#define AV_PKT_FLAG_KEY 0x0001 ///< The packet contains a keyframe
#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
/**
* Flag is used to discard packets which are required to maintain valid
* decoder state but are not required for output and should be dropped
* after decoding.
**/
#define AV_PKT_FLAG_DISCARD 0x0004
/**
* The packet comes from a trusted source.
*
* Otherwise-unsafe constructs such as arbitrary pointers to data
* outside the packet may be followed.
*/
#define AV_PKT_FLAG_TRUSTED 0x0008
/**
* Flag is used to indicate packets that contain frames that can
* be discarded by the decoder. I.e. Non-reference frames.
*/
#define AV_PKT_FLAG_DISPOSABLE 0x0010
enum AVSideDataParamChangeFlags {
AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004,
AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008,
};
/**
* Allocate an AVPacket and set its fields to default values. The resulting
* struct must be freed using av_packet_free().
*
* @return An AVPacket filled with default values or NULL on failure.
*
* @note this only allocates the AVPacket itself, not the data buffers. Those
* must be allocated through other means such as av_new_packet.
*
* @see av_new_packet
*/
AVPacket *av_packet_alloc(void);
/**
* Create a new packet that references the same data as src.
*
* This is a shortcut for av_packet_alloc()+av_packet_ref().
*
* @return newly created AVPacket on success, NULL on error.
*
* @see av_packet_alloc
* @see av_packet_ref
*/
AVPacket *av_packet_clone(const AVPacket *src);
/**
* Free the packet, if the packet is reference counted, it will be
* unreferenced first.
*
* @param pkt packet to be freed. The pointer will be set to NULL.
* @note passing NULL is a no-op.
*/
void av_packet_free(AVPacket **pkt);
#if FF_API_INIT_PACKET
/**
* Initialize optional fields of a packet with default values.
*
* Note, this does not touch the data and size members, which have to be
* initialized separately.
*
* @param pkt packet
*
* @see av_packet_alloc
* @see av_packet_unref
*
* @deprecated This function is deprecated. Once it's removed,
sizeof(AVPacket) will not be a part of the ABI anymore.
*/
attribute_deprecated
void av_init_packet(AVPacket *pkt);
#endif
/**
* Allocate the payload of a packet and initialize its fields with
* default values.
*
* @param pkt packet
* @param size wanted payload size
* @return 0 if OK, AVERROR_xxx otherwise
*/
int av_new_packet(AVPacket *pkt, int size);
/**
* Reduce packet size, correctly zeroing padding
*
* @param pkt packet
* @param size new size
*/
void av_shrink_packet(AVPacket *pkt, int size);
/**
* Increase packet size, correctly zeroing padding
*
* @param pkt packet
* @param grow_by number of bytes by which to increase the size of the packet
*/
int av_grow_packet(AVPacket *pkt, int grow_by);
/**
* Initialize a reference-counted packet from av_malloc()ed data.
*
* @param pkt packet to be initialized. This function will set the data, size,
* and buf fields, all others are left untouched.
* @param data Data allocated by av_malloc() to be used as packet data. If this
* function returns successfully, the data is owned by the underlying AVBuffer.
* The caller may not access the data through other means.
* @param size size of data in bytes, without the padding. I.e. the full buffer
* size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE.
*
* @return 0 on success, a negative AVERROR on error
*/
int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size);
/**
* Allocate new information of a packet.
*
* @param pkt packet
* @param type side information type
* @param size side information size
* @return pointer to fresh allocated data or NULL otherwise
*/
uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
size_t size);
/**
* Wrap an existing array as a packet side data.
*
* @param pkt packet
* @param type side information type
* @param data the side data array. It must be allocated with the av_malloc()
* family of functions. The ownership of the data is transferred to
* pkt.
* @param size side information size
* @return a non-negative number on success, a negative AVERROR code on
* failure. On failure, the packet is unchanged and the data remains
* owned by the caller.
*/
int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
uint8_t *data, size_t size);
/**
* Shrink the already allocated side data buffer
*
* @param pkt packet
* @param type side information type
* @param size new side information size
* @return 0 on success, < 0 on failure
*/
int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
size_t size);
/**
* Get side information from packet.
*
* @param pkt packet
* @param type desired side information type
* @param size If supplied, *size will be set to the size of the side data
* or to zero if the desired side data is not present.
* @return pointer to data if present or NULL otherwise
*/
uint8_t* av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
size_t *size);
/**
* Pack a dictionary for use in side_data.
*
* @param dict The dictionary to pack.
* @param size pointer to store the size of the returned data
* @return pointer to data if successful, NULL otherwise
*/
uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size);
/**
* Unpack a dictionary from side_data.
*
* @param data data from side_data
* @param size size of the data
* @param dict the metadata storage dictionary
* @return 0 on success, < 0 on failure
*/
int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
AVDictionary **dict);
/**
* Convenience function to free all the side data stored.
* All the other fields stay untouched.
*
* @param pkt packet
*/
void av_packet_free_side_data(AVPacket *pkt);
/**
* Setup a new reference to the data described by a given packet
*
* If src is reference-counted, setup dst as a new reference to the
* buffer in src. Otherwise allocate a new buffer in dst and copy the
* data from src into it.
*
* All the other fields are copied from src.
*
* @see av_packet_unref
*
* @param dst Destination packet. Will be completely overwritten.
* @param src Source packet
*
* @return 0 on success, a negative AVERROR on error. On error, dst
* will be blank (as if returned by av_packet_alloc()).
*/
int av_packet_ref(AVPacket *dst, const AVPacket *src);
/**
* Wipe the packet.
*
* Unreference the buffer referenced by the packet and reset the
* remaining packet fields to their default values.
*
* @param pkt The packet to be unreferenced.
*/
void av_packet_unref(AVPacket *pkt);
/**
* Move every field in src to dst and reset src.
*
* @see av_packet_unref
*
* @param src Source packet, will be reset
* @param dst Destination packet
*/
void av_packet_move_ref(AVPacket *dst, AVPacket *src);
/**
* Copy only "properties" fields from src to dst.
*
* Properties for the purpose of this function are all the fields
* beside those related to the packet data (buf, data, size)
*
* @param dst Destination packet
* @param src Source packet
*
* @return 0 on success AVERROR on failure.
*/
int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
/**
* Ensure the data described by a given packet is reference counted.
*
* @note This function does not ensure that the reference will be writable.
* Use av_packet_make_writable instead for that purpose.
*
* @see av_packet_ref
* @see av_packet_make_writable
*
* @param pkt packet whose data should be made reference counted.
*
* @return 0 on success, a negative AVERROR on error. On failure, the
* packet is unchanged.
*/
int av_packet_make_refcounted(AVPacket *pkt);
/**
* Create a writable reference for the data described by a given packet,
* avoiding data copy if possible.
*
* @param pkt Packet whose data should be made writable.
*
* @return 0 on success, a negative AVERROR on failure. On failure, the
* packet is unchanged.
*/
int av_packet_make_writable(AVPacket *pkt);
/**
* Convert valid timing fields (timestamps / durations) in a packet from one
* timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be
* ignored.
*
* @param pkt packet on which the conversion will be performed
* @param tb_src source timebase, in which the timing fields in pkt are
* expressed
* @param tb_dst destination timebase, to which the timing fields will be
* converted
*/
void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
/**
* Allocate an AVContainerFifo instance for AVPacket.
*
* @param flags currently unused
*/
struct AVContainerFifo *av_container_fifo_alloc_avpacket(unsigned flags);
/**
* @}
*/
#endif // AVCODEC_PACKET_H
@@ -0,0 +1,109 @@
/*
* Intel MediaSDK QSV public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_QSV_H
#define AVCODEC_QSV_H
#include <mfxvideo.h>
#include "libavutil/buffer.h"
/**
* This struct is used for communicating QSV parameters between libavcodec and
* the caller. It is managed by the caller and must be assigned to
* AVCodecContext.hwaccel_context.
* - decoding: hwaccel_context must be set on return from the get_format()
* callback
* - encoding: hwaccel_context must be set before avcodec_open2()
*/
typedef struct AVQSVContext {
/**
* If non-NULL, the session to use for encoding or decoding.
* Otherwise, libavcodec will try to create an internal session.
*/
mfxSession session;
/**
* The IO pattern to use.
*/
int iopattern;
/**
* Extra buffers to pass to encoder or decoder initialization.
*/
mfxExtBuffer **ext_buffers;
int nb_ext_buffers;
/**
* Encoding only. If this field is set to non-zero by the caller, libavcodec
* will create an mfxExtOpaqueSurfaceAlloc extended buffer and pass it to
* the encoder initialization. This only makes sense if iopattern is also
* set to MFX_IOPATTERN_IN_OPAQUE_MEMORY.
*
* The number of allocated opaque surfaces will be the sum of the number
* required by the encoder and the user-provided value nb_opaque_surfaces.
* The array of the opaque surfaces will be exported to the caller through
* the opaque_surfaces field.
*
* The caller must set this field to zero for oneVPL (MFX_VERSION >= 2.0)
*/
int opaque_alloc;
/**
* Encoding only, and only if opaque_alloc is set to non-zero. Before
* calling avcodec_open2(), the caller should set this field to the number
* of extra opaque surfaces to allocate beyond what is required by the
* encoder.
*
* On return from avcodec_open2(), this field will be set by libavcodec to
* the total number of allocated opaque surfaces.
*/
int nb_opaque_surfaces;
/**
* Encoding only, and only if opaque_alloc is set to non-zero. On return
* from avcodec_open2(), this field will be used by libavcodec to export the
* array of the allocated opaque surfaces to the caller, so they can be
* passed to other parts of the pipeline.
*
* The buffer reference exported here is owned and managed by libavcodec,
* the callers should make their own reference with av_buffer_ref() and free
* it with av_buffer_unref() when it is no longer needed.
*
* The buffer data is an nb_opaque_surfaces-sized array of mfxFrameSurface1.
*/
AVBufferRef *opaque_surfaces;
/**
* Encoding only, and only if opaque_alloc is set to non-zero. On return
* from avcodec_open2(), this field will be set to the surface type used in
* the opaque allocation request.
*/
int opaque_alloc_type;
} AVQSVContext;
/**
* Allocate a new context.
*
* It must be freed by the caller with av_free().
*/
AVQSVContext *av_qsv_alloc_context(void);
#endif /* AVCODEC_QSV_H */
@@ -0,0 +1,254 @@
/*
* MXF SMPTE-436M VBI/ANC parsing functions
* Copyright (c) 2025 Jacob Lifshay
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_SMPTE_436M_H
#define AVCODEC_SMPTE_436M_H
#include <stdint.h>
/**
* Iterator over the ANC packets in a single AV_CODEC_ID_SMPTE_436M_ANC AVPacket's data
*/
typedef struct AVSmpte436mAncIterator {
uint16_t anc_packets_left;
int size_left;
const uint8_t *data_left;
} AVSmpte436mAncIterator;
/**
* Wrapping Type from Table 7 (page 13) of:
* https://pub.smpte.org/latest/st436/s436m-2006.pdf
*/
typedef enum AVSmpte436mWrappingType
{
AV_SMPTE_436M_WRAPPING_TYPE_VANC_FRAME = 1,
AV_SMPTE_436M_WRAPPING_TYPE_VANC_FIELD_1 = 2,
AV_SMPTE_436M_WRAPPING_TYPE_VANC_FIELD_2 = 3,
AV_SMPTE_436M_WRAPPING_TYPE_VANC_PROGRESSIVE_FRAME = 4,
AV_SMPTE_436M_WRAPPING_TYPE_HANC_FRAME = 0x11,
AV_SMPTE_436M_WRAPPING_TYPE_HANC_FIELD_1 = 0x12,
AV_SMPTE_436M_WRAPPING_TYPE_HANC_FIELD_2 = 0x13,
AV_SMPTE_436M_WRAPPING_TYPE_HANC_PROGRESSIVE_FRAME = 0x14,
/** not a real wrapping type, just here to guarantee the enum is big enough */
AV_SMPTE_436M_WRAPPING_TYPE_MAX = 0xFF,
} AVSmpte436mWrappingType;
/**
* Payload Sample Coding from Table 4 (page 10) and Table 7 (page 13) of:
* https://pub.smpte.org/latest/st436/s436m-2006.pdf
*/
typedef enum AVSmpte436mPayloadSampleCoding
{
/** only used for VBI */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_1BIT_LUMA = 1,
/** only used for VBI */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_1BIT_COLOR_DIFF = 2,
/** only used for VBI */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_1BIT_LUMA_AND_COLOR_DIFF = 3,
/** used for VBI and ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_8BIT_LUMA = 4,
/** used for VBI and ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_8BIT_COLOR_DIFF = 5,
/** used for VBI and ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_8BIT_LUMA_AND_COLOR_DIFF = 6,
/** used for VBI and ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_10BIT_LUMA = 7,
/** used for VBI and ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_10BIT_COLOR_DIFF = 8,
/** used for VBI and ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_10BIT_LUMA_AND_COLOR_DIFF = 9,
/** only used for ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_8BIT_LUMA_WITH_PARITY_ERROR = 10,
/** only used for ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_8BIT_COLOR_DIFF_WITH_PARITY_ERROR = 11,
/** only used for ANC */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_8BIT_LUMA_AND_COLOR_DIFF_WITH_PARITY_ERROR = 12,
/** not a real sample coding, just here to guarantee the enum is big enough */
AV_SMPTE_436M_PAYLOAD_SAMPLE_CODING_MAX = 0xFF,
} AVSmpte436mPayloadSampleCoding;
/** the payload capacity of AVSmpte291mAnc8bit (and of AVSmpte291mAnc10bit when that gets added) */
#define AV_SMPTE_291M_ANC_PAYLOAD_CAPACITY 0xFF
/**
* An ANC packet with an 8-bit payload.
* This can be decoded from AVSmpte436mCodedAnc::payload.
*
* Note: Some ANC packets need a 10-bit payload, if stored in this struct,
* the most-significant 2 bits of each sample are discarded.
*/
typedef struct AVSmpte291mAnc8bit {
uint8_t did;
uint8_t sdid_or_dbn;
uint8_t data_count;
uint8_t payload[AV_SMPTE_291M_ANC_PAYLOAD_CAPACITY];
uint8_t checksum;
} AVSmpte291mAnc8bit;
/** max number of samples that can be stored in the payload of AVSmpte436mCodedAnc */
#define AV_SMPTE_436M_CODED_ANC_SAMPLE_CAPACITY \
(AV_SMPTE_291M_ANC_PAYLOAD_CAPACITY + 4) /* 4 for did, sdid_or_dbn, data_count, and checksum */
/** max number of bytes that can be stored in the payload of AVSmpte436mCodedAnc */
#define AV_SMPTE_436M_CODED_ANC_PAYLOAD_CAPACITY (((AV_SMPTE_436M_CODED_ANC_SAMPLE_CAPACITY + 2) / 3) * 4)
/**
* An encoded ANC packet within a single AV_CODEC_ID_SMPTE_436M_ANC AVPacket's data.
* The repeated section of Table 7 (page 13) of:
* https://pub.smpte.org/latest/st436/s436m-2006.pdf
*/
typedef struct AVSmpte436mCodedAnc {
uint16_t line_number;
AVSmpte436mWrappingType wrapping_type;
AVSmpte436mPayloadSampleCoding payload_sample_coding;
uint16_t payload_sample_count;
uint32_t payload_array_length;
/** the payload, has size payload_array_length.
* can be decoded into AVSmpte291mAnc8bit
*/
uint8_t payload[AV_SMPTE_436M_CODED_ANC_PAYLOAD_CAPACITY];
} AVSmpte436mCodedAnc;
/**
* Validate a AVSmpte436mCodedAnc structure. Doesn't check if the payload is valid.
* @param[in] anc ANC packet to validate
* @return 0 on success, AVERROR codes otherwise.
*/
int av_smpte_436m_coded_anc_validate(const AVSmpte436mCodedAnc *anc);
/**
* Encode ANC packets into a single AV_CODEC_ID_SMPTE_436M_ANC AVPacket's data.
* @param[in] anc_packet_count number of ANC packets to encode
* @param[in] anc_packets the ANC packets to encode
* @param[in] size the size of out. ignored if out is NULL.
* @param[out] out Output bytes. Doesn't write anything if out is NULL.
* @return the number of bytes written on success, AVERROR codes otherwise.
* If out is NULL, returns the number of bytes it would have written.
*/
int av_smpte_436m_anc_encode(uint8_t *out, int size, int anc_packet_count, const AVSmpte436mCodedAnc *anc_packets);
struct AVPacket;
/**
* Append more ANC packets to a single AV_CODEC_ID_SMPTE_436M_ANC AVPacket's data.
* @param[in] anc_packet_count number of ANC packets to encode
* @param[in] anc_packets the ANC packets to encode
* @param pkt the AVPacket to append to.
* it must either be size 0 or contain valid SMPTE_436M_ANC data.
* @return 0 on success, AVERROR codes otherwise.
*/
int av_smpte_436m_anc_append(struct AVPacket *pkt, int anc_packet_count, const AVSmpte436mCodedAnc *anc_packets);
/**
* Set up iteration over the ANC packets in a single AV_CODEC_ID_SMPTE_436M_ANC AVPacket's data.
* @param[in] buf Pointer to the data from a AV_CODEC_ID_SMPTE_436M_ANC AVPacket.
* @param[in] buf_size Size of the data from a AV_CODEC_ID_SMPTE_436M_ANC AVPacket.
* @param[out] iter Pointer to the iterator.
* @return 0 on success, AVERROR codes otherwise.
*/
int av_smpte_436m_anc_iter_init(AVSmpte436mAncIterator *iter, const uint8_t *buf, int buf_size);
/**
* Get the next ANC packet from the iterator, advancing the iterator.
* @param[in,out] iter Pointer to the iterator.
* @param[out] anc The returned ANC packet.
* @return 0 on success, AVERROR_EOF when the iterator has reached the end, AVERROR codes otherwise.
*/
int av_smpte_436m_anc_iter_next(AVSmpte436mAncIterator *iter, AVSmpte436mCodedAnc *anc);
/**
* Get the minimum number of bytes needed to store a AVSmpte436mCodedAnc payload.
* @param sample_coding the payload sample coding
* @param sample_count the number of samples stored in the payload
* @return returns the minimum number of bytes needed, on error returns < 0.
* always <= SMPTE_436M_CODED_ANC_PAYLOAD_CAPACITY
*/
int av_smpte_436m_coded_anc_payload_size(AVSmpte436mPayloadSampleCoding sample_coding, uint16_t sample_count);
/**
* Decode a AVSmpte436mCodedAnc payload into AVSmpte291mAnc8bit
* @param[in] sample_coding the payload sample coding
* @param[in] sample_count the number of samples stored in the payload
* @param[in] payload the bytes storing the payload,
* the needed size can be obtained from
avpriv_smpte_436m_coded_anc_payload_size
* @param[in] log_ctx context pointer for av_log
* @param[out] out The decoded ANC packet.
* @return returns 0 on success, otherwise < 0.
*/
int av_smpte_291m_anc_8bit_decode(AVSmpte291mAnc8bit *out,
AVSmpte436mPayloadSampleCoding sample_coding,
uint16_t sample_count,
const uint8_t *payload,
void *log_ctx);
/**
* Fill in the correct checksum for a AVSmpte291mAnc8bit
* @param[in,out] anc The ANC packet.
*/
void av_smpte_291m_anc_8bit_fill_checksum(AVSmpte291mAnc8bit *anc);
/**
* Compute the sample count needed to encode a AVSmpte291mAnc8bit into a AVSmpte436mCodedAnc payload
* @param[in] anc The ANC packet.
* @param[in] sample_coding The sample coding.
* @param[in] log_ctx context pointer for av_log
* @return returns the sample count on success, otherwise < 0.
*/
int av_smpte_291m_anc_8bit_get_sample_count(const AVSmpte291mAnc8bit *anc,
AVSmpte436mPayloadSampleCoding sample_coding,
void *log_ctx);
/**
* Encode a AVSmpte291mAnc8bit into a AVSmpte436mCodedAnc
* @param[in] line_number the line number the ANC packet is on
* @param[in] wrapping_type the wrapping type
* @param[in] sample_coding the payload sample coding
* @param[in] payload the ANC packet to encode.
* @param[in] log_ctx context pointer for av_log
* @param[out] out The encoded ANC packet.
* @return returns 0 on success, otherwise < 0.
*/
int av_smpte_291m_anc_8bit_encode(AVSmpte436mCodedAnc *out,
uint16_t line_number,
AVSmpte436mWrappingType wrapping_type,
AVSmpte436mPayloadSampleCoding sample_coding,
const AVSmpte291mAnc8bit *payload,
void *log_ctx);
/** AVSmpte291mAnc8bit::did when carrying CTA-708 data (for AV_CODEC_ID_EIA_608) */
#define AV_SMPTE_291M_ANC_DID_CTA_708 0x61
/** AVSmpte291mAnc8bit::sdid_or_dbn when carrying CTA-708 data (for AV_CODEC_ID_EIA_608) */
#define AV_SMPTE_291M_ANC_SDID_CTA_708 0x1
/**
* Try to decode an ANC packet into EIA-608/CTA-708 data (AV_CODEC_ID_EIA_608). This
* @param[in] anc The ANC packet.
* @param[in] log_ctx Context pointer for av_log
* @param[out] cc_data the buffer to store the extracted EIA-608/CTA-708 data,
* you can pass NULL to not store the data.
* the required size is 3 * cc_count bytes.
* SMPTE_291M_ANC_PAYLOAD_CAPACITY is always enough size.
* @return returns cc_count (>= 0) on success, AVERROR(EAGAIN) if it wasn't a CTA-708 ANC packet, < 0 on error.
*/
int av_smpte_291m_anc_8bit_extract_cta_708(const AVSmpte291mAnc8bit *anc, uint8_t *cc_data, void *log_ctx);
#endif /* AVCODEC_SMPTE_436M_H */
@@ -0,0 +1,138 @@
/*
* The Video Decode and Presentation API for UNIX (VDPAU) is used for
* hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
*
* Copyright (C) 2008 NVIDIA
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VDPAU_H
#define AVCODEC_VDPAU_H
/**
* @file
* @ingroup lavc_codec_hwaccel_vdpau
* Public libavcodec VDPAU header.
*/
/**
* @defgroup lavc_codec_hwaccel_vdpau VDPAU Decoder and Renderer
* @ingroup lavc_codec_hwaccel
*
* VDPAU hardware acceleration has two modules
* - VDPAU decoding
* - VDPAU presentation
*
* The VDPAU decoding module parses all headers using FFmpeg
* parsing mechanisms and uses VDPAU for the actual decoding.
*
* As per the current implementation, the actual decoding
* and rendering (API calls) are done as part of the VDPAU
* presentation (vo_vdpau.c) module.
*
* @{
*/
#include <vdpau/vdpau.h>
#include "libavutil/avconfig.h"
#include "libavutil/attributes.h"
#include "avcodec.h"
struct AVCodecContext;
struct AVFrame;
typedef int (*AVVDPAU_Render2)(struct AVCodecContext *, struct AVFrame *,
const VdpPictureInfo *, uint32_t,
const VdpBitstreamBuffer *);
/**
* This structure is used to share data between the libavcodec library and
* the client video application.
* This structure will be allocated and stored in AVCodecContext.hwaccel_context
* by av_vdpau_bind_context(). Members can be set by the user once
* during initialization or through each AVCodecContext.get_buffer()
* function call. In any case, they must be valid prior to calling
* decoding functions.
*
* The size of this structure is not a part of the public ABI and must not
* be used outside of libavcodec.
*/
typedef struct AVVDPAUContext {
/**
* VDPAU decoder handle
*
* Set by user.
*/
VdpDecoder decoder;
/**
* VDPAU decoder render callback
*
* Set by the user.
*/
VdpDecoderRender *render;
AVVDPAU_Render2 render2;
} AVVDPAUContext;
/**
* Associate a VDPAU device with a codec context for hardware acceleration.
* This function is meant to be called from the get_format() codec callback,
* or earlier. It can also be called after avcodec_flush_buffers() to change
* the underlying VDPAU device mid-stream (e.g. to recover from non-transparent
* display preemption).
*
* @note get_format() must return AV_PIX_FMT_VDPAU if this function completes
* successfully.
*
* @param avctx decoding context whose get_format() callback is invoked
* @param device VDPAU device handle to use for hardware acceleration
* @param get_proc_address VDPAU device driver
* @param flags zero of more OR'd AV_HWACCEL_FLAG_* flags
*
* @return 0 on success, an AVERROR code on failure.
*/
int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
VdpGetProcAddress *get_proc_address, unsigned flags);
/**
* Gets the parameters to create an adequate VDPAU video surface for the codec
* context using VDPAU hardware decoding acceleration.
*
* @note Behavior is undefined if the context was not successfully bound to a
* VDPAU device using av_vdpau_bind_context().
*
* @param avctx the codec context being used for decoding the stream
* @param type storage space for the VDPAU video surface chroma type
* (or NULL to ignore)
* @param width storage space for the VDPAU video surface pixel width
* (or NULL to ignore)
* @param height storage space for the VDPAU video surface pixel height
* (or NULL to ignore)
*
* @return 0 on success, a negative AVERROR code on failure.
*/
int av_vdpau_get_surface_parameters(AVCodecContext *avctx, VdpChromaType *type,
uint32_t *width, uint32_t *height);
/** @} */
#endif /* AVCODEC_VDPAU_H */
@@ -0,0 +1,45 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VERSION_H
#define AVCODEC_VERSION_H
/**
* @file
* @ingroup libavc
* Libavcodec version macros.
*/
#include "libavutil/version.h"
#include "version_major.h"
#define LIBAVCODEC_VERSION_MINOR 28
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \
LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \
LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
#endif /* AVCODEC_VERSION_H */
@@ -0,0 +1,59 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VERSION_MAJOR_H
#define AVCODEC_VERSION_MAJOR_H
/**
* @file
* @ingroup libavc
* Libavcodec version macros.
*/
#define LIBAVCODEC_VERSION_MAJOR 62
/**
* FF_API_* defines may be placed below to indicate public API that will be
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*
* @note, when bumping the major version it is recommended to manually
* disable each FF_API_* in its own commit instead of disabling them all
* at once through the bump. This improves the git bisect-ability of the change.
*/
#define FF_API_INIT_PACKET (LIBAVCODEC_VERSION_MAJOR < 63)
#define FF_API_V408_CODECID (LIBAVCODEC_VERSION_MAJOR < 63)
#define FF_API_CODEC_PROPS (LIBAVCODEC_VERSION_MAJOR < 63)
#define FF_API_EXR_GAMMA (LIBAVCODEC_VERSION_MAJOR < 63)
#define FF_API_INTRA_DC_PRECISION (LIBAVCODEC_VERSION_MAJOR < 63)
#define FF_API_NVDEC_OLD_PIX_FMTS (LIBAVCODEC_VERSION_MAJOR < 63)
#define FF_API_PARSER_PRIVATE (LIBAVCODEC_VERSION_MAJOR < 63)
#define FF_API_PARSER_CODECID (LIBAVCODEC_VERSION_MAJOR < 63)
// reminder to remove the OMX encoder on next major bump
#define FF_CODEC_OMX (LIBAVCODEC_VERSION_MAJOR < 63)
// reminder to remove Sonic Lossy/Lossless encoders on next major bump
#define FF_CODEC_SONIC_ENC (LIBAVCODEC_VERSION_MAJOR < 63)
// reminder to remove Sonic decoder on next-next major bump
#define FF_CODEC_SONIC_DEC (LIBAVCODEC_VERSION_MAJOR < 63)
#endif /* AVCODEC_VERSION_MAJOR_H */
@@ -0,0 +1,85 @@
/*
* Videotoolbox hardware acceleration
*
* copyright (c) 2012 Sebastien Zwickert
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VIDEOTOOLBOX_H
#define AVCODEC_VIDEOTOOLBOX_H
/**
* @file
* @ingroup lavc_codec_hwaccel_videotoolbox
* Public libavcodec Videotoolbox header.
*/
/**
* @defgroup lavc_codec_hwaccel_videotoolbox VideoToolbox Decoder
* @ingroup lavc_codec_hwaccel
*
* Hardware accelerated decoding using VideoToolbox on Apple Platforms
*
* @{
*/
#include <stdint.h>
#define Picture QuickdrawPicture
#include <VideoToolbox/VideoToolbox.h>
#undef Picture
#include "libavcodec/avcodec.h"
#include "libavutil/attributes.h"
/**
* This struct holds all the information that needs to be passed
* between the caller and libavcodec for initializing Videotoolbox decoding.
* Its size is not a part of the public ABI, it must be allocated with
* av_videotoolbox_alloc_context() and freed with av_free().
*/
typedef struct AVVideotoolboxContext {
/**
* Videotoolbox decompression session object.
*/
VTDecompressionSessionRef session;
/**
* CVPixelBuffer Format Type that Videotoolbox will use for decoded frames.
* set by the caller. If this is set to 0, then no specific format is
* requested from the decoder, and its native format is output.
*/
OSType cv_pix_fmt_type;
/**
* CoreMedia Format Description that Videotoolbox will use to create the decompression session.
*/
CMVideoFormatDescriptionRef cm_fmt_desc;
/**
* CoreMedia codec type that Videotoolbox will use to create the decompression session.
*/
int cm_codec_type;
} AVVideotoolboxContext;
/**
* @}
*/
#endif /* AVCODEC_VIDEOTOOLBOX_H */
@@ -0,0 +1,74 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* A public API for Vorbis parsing
*
* Determines the duration for each packet.
*/
#ifndef AVCODEC_VORBIS_PARSER_H
#define AVCODEC_VORBIS_PARSER_H
#include <stdint.h>
typedef struct AVVorbisParseContext AVVorbisParseContext;
/**
* Allocate and initialize the Vorbis parser using headers in the extradata.
*/
AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
int extradata_size);
/**
* Free the parser and everything associated with it.
*/
void av_vorbis_parse_free(AVVorbisParseContext **s);
#define VORBIS_FLAG_HEADER 0x00000001
#define VORBIS_FLAG_COMMENT 0x00000002
#define VORBIS_FLAG_SETUP 0x00000004
/**
* Get the duration for a Vorbis packet.
*
* If @p flags is @c NULL,
* special frames are considered invalid.
*
* @param s Vorbis parser context
* @param buf buffer containing a Vorbis frame
* @param buf_size size of the buffer
* @param flags flags for special frames
*/
int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
int buf_size, int *flags);
/**
* Get the duration for a Vorbis packet.
*
* @param s Vorbis parser context
* @param buf buffer containing a Vorbis frame
* @param buf_size size of the buffer
*/
int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
int buf_size);
void av_vorbis_parse_reset(AVVorbisParseContext *s);
#endif /* AVCODEC_VORBIS_PARSER_H */