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FFmpeg
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Modules | |
| AVHWAccel | |
Data Structures | |
| struct | RcOverride |
| struct | AVPanScan |
| Pan Scan area. More... | |
| struct | AVCPBProperties |
| This structure describes the bitrate properties of an encoded bitstream. More... | |
| struct | AVProducerReferenceTime |
| This structure supplies correlation between a packet timestamp and a wall clock production time. More... | |
| struct | AVCodecContext |
| main external API structure. More... | |
| struct | AVSubtitleRect |
| struct | AVSubtitle |
| struct | AVBSFContext |
| The bitstream filter state. More... | |
| struct | AVBitStreamFilter |
| struct | AVProfile |
| AVProfile. More... | |
| struct | AVCodec |
| AVCodec. More... | |
| struct | AVCodecHWConfig |
| struct | AVCodecDescriptor |
| This struct describes the properties of a single codec described by an AVCodecID. More... | |
Macros | |
| #define | AV_CODEC_FLAG_UNALIGNED (1 << 0) |
| Allow decoders to produce frames with data planes that are not aligned to CPU requirements (e.g. More... | |
| #define | AV_CODEC_FLAG_QSCALE (1 << 1) |
| Use fixed qscale. More... | |
| #define | AV_CODEC_FLAG_4MV (1 << 2) |
| 4 MV per MB allowed / advanced prediction for H.263. More... | |
| #define | AV_CODEC_FLAG_OUTPUT_CORRUPT (1 << 3) |
| Output even those frames that might be corrupted. More... | |
| #define | AV_CODEC_FLAG_QPEL (1 << 4) |
| Use qpel MC. More... | |
| #define | AV_CODEC_FLAG_DROPCHANGED (1 << 5) |
| Don't output frames whose parameters differ from first decoded frame in stream. More... | |
| #define | AV_CODEC_FLAG_PASS1 (1 << 9) |
| Use internal 2pass ratecontrol in first pass mode. More... | |
| #define | AV_CODEC_FLAG_PASS2 (1 << 10) |
| Use internal 2pass ratecontrol in second pass mode. More... | |
| #define | AV_CODEC_FLAG_LOOP_FILTER (1 << 11) |
| loop filter. More... | |
| #define | AV_CODEC_FLAG_GRAY (1 << 13) |
| Only decode/encode grayscale. More... | |
| #define | AV_CODEC_FLAG_PSNR (1 << 15) |
| error[?] variables will be set during encoding. More... | |
| #define | AV_CODEC_FLAG_TRUNCATED (1 << 16) |
| Input bitstream might be truncated at a random location instead of only at frame boundaries. More... | |
| #define | AV_CODEC_FLAG_INTERLACED_DCT (1 << 18) |
| Use interlaced DCT. More... | |
| #define | AV_CODEC_FLAG_LOW_DELAY (1 << 19) |
| Force low delay. More... | |
| #define | AV_CODEC_FLAG_GLOBAL_HEADER (1 << 22) |
| Place global headers in extradata instead of every keyframe. More... | |
| #define | AV_CODEC_FLAG_BITEXACT (1 << 23) |
| Use only bitexact stuff (except (I)DCT). More... | |
| #define | AV_CODEC_FLAG_AC_PRED (1 << 24) |
| H.263 advanced intra coding / MPEG-4 AC prediction. More... | |
| #define | AV_CODEC_FLAG_INTERLACED_ME (1 << 29) |
| interlaced motion estimation More... | |
| #define | AV_CODEC_FLAG_CLOSED_GOP (1U << 31) |
| #define | AV_CODEC_FLAG2_FAST (1 << 0) |
| Allow non spec compliant speedup tricks. More... | |
| #define | AV_CODEC_FLAG2_NO_OUTPUT (1 << 2) |
| Skip bitstream encoding. More... | |
| #define | AV_CODEC_FLAG2_LOCAL_HEADER (1 << 3) |
| Place global headers at every keyframe instead of in extradata. More... | |
| #define | AV_CODEC_FLAG2_DROP_FRAME_TIMECODE (1 << 13) |
| timecode is in drop frame format. More... | |
| #define | AV_CODEC_FLAG2_CHUNKS (1 << 15) |
| Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries. More... | |
| #define | AV_CODEC_FLAG2_IGNORE_CROP (1 << 16) |
| Discard cropping information from SPS. More... | |
| #define | AV_CODEC_FLAG2_SHOW_ALL (1 << 22) |
| Show all frames before the first keyframe. More... | |
| #define | AV_CODEC_FLAG2_EXPORT_MVS (1 << 28) |
| Export motion vectors through frame side data. More... | |
| #define | AV_CODEC_FLAG2_SKIP_MANUAL (1 << 29) |
| Do not skip samples and export skip information as frame side data. More... | |
| #define | AV_CODEC_FLAG2_RO_FLUSH_NOOP (1 << 30) |
| Do not reset ASS ReadOrder field on flush (subtitles decoding) More... | |
| #define | AV_CODEC_EXPORT_DATA_MVS (1 << 0) |
| Export motion vectors through frame side data. More... | |
| #define | AV_CODEC_EXPORT_DATA_PRFT (1 << 1) |
| Export encoder Producer Reference Time through packet side data. More... | |
| #define | AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS (1 << 2) |
| Decoding only. More... | |
| #define | AV_CODEC_EXPORT_DATA_FILM_GRAIN (1 << 3) |
| Decoding only. More... | |
| #define | AV_GET_BUFFER_FLAG_REF (1 << 0) |
| The decoder will keep a reference to the frame and may reuse it later. More... | |
| #define | AV_GET_ENCODE_BUFFER_FLAG_REF (1 << 0) |
| The encoder will keep a reference to the packet and may reuse it later. More... | |
| #define | AV_SUBTITLE_FLAG_FORCED 0x00000001 |
| #define | AV_CODEC_CAP_DRAW_HORIZ_BAND (1 << 0) |
| Decoder can use draw_horiz_band callback. More... | |
| #define | AV_CODEC_CAP_DR1 (1 << 1) |
| Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators. More... | |
| #define | AV_CODEC_CAP_TRUNCATED (1 << 3) |
| #define | AV_CODEC_CAP_DELAY (1 << 5) |
| Encoder or decoder requires flushing with NULL input at the end in order to give the complete and correct output. More... | |
| #define | AV_CODEC_CAP_SMALL_LAST_FRAME (1 << 6) |
| Codec can be fed a final frame with a smaller size. More... | |
| #define | AV_CODEC_CAP_SUBFRAMES (1 << 8) |
| Codec can output multiple frames per AVPacket Normally demuxers return one frame at a time, demuxers which do not do are connected to a parser to split what they return into proper frames. More... | |
| #define | AV_CODEC_CAP_EXPERIMENTAL (1 << 9) |
| Codec is experimental and is thus avoided in favor of non experimental encoders. More... | |
| #define | AV_CODEC_CAP_CHANNEL_CONF (1 << 10) |
| Codec should fill in channel configuration and samplerate instead of container. More... | |
| #define | AV_CODEC_CAP_FRAME_THREADS (1 << 12) |
| Codec supports frame-level multithreading. More... | |
| #define | AV_CODEC_CAP_SLICE_THREADS (1 << 13) |
| Codec supports slice-based (or partition-based) multithreading. More... | |
| #define | AV_CODEC_CAP_PARAM_CHANGE (1 << 14) |
| Codec supports changed parameters at any point. More... | |
| #define | AV_CODEC_CAP_OTHER_THREADS (1 << 15) |
| Codec supports multithreading through a method other than slice- or frame-level multithreading. More... | |
| #define | AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16) |
| Audio encoder supports receiving a different number of samples in each call. More... | |
| #define | AV_CODEC_CAP_AVOID_PROBING (1 << 17) |
| Decoder is not a preferred choice for probing. More... | |
| #define | AV_CODEC_CAP_HARDWARE (1 << 18) |
| Codec is backed by a hardware implementation. More... | |
| #define | AV_CODEC_CAP_HYBRID (1 << 19) |
| Codec is potentially backed by a hardware implementation, but not necessarily. More... | |
| #define | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20) |
| This codec takes the reordered_opaque field from input AVFrames and returns it in the corresponding field in AVCodecContext after encoding. More... | |
| #define | AV_CODEC_CAP_ENCODER_FLUSH (1 << 21) |
| This encoder can be flushed using avcodec_flush_buffers(). More... | |
| #define | AV_CODEC_PROP_INTRA_ONLY (1 << 0) |
| Codec uses only intra compression. More... | |
| #define | AV_CODEC_PROP_LOSSY (1 << 1) |
| Codec supports lossy compression. More... | |
| #define | AV_CODEC_PROP_LOSSLESS (1 << 2) |
| Codec supports lossless compression. More... | |
| #define | AV_CODEC_PROP_REORDER (1 << 3) |
| Codec supports frame reordering. More... | |
| #define | AV_CODEC_PROP_BITMAP_SUB (1 << 16) |
| Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field. More... | |
| #define | AV_CODEC_PROP_TEXT_SUB (1 << 17) |
| Subtitle codec is text based. More... | |
Functions | |
| unsigned | avcodec_version (void) |
| Return the LIBAVCODEC_VERSION_INT constant. More... | |
| const char * | avcodec_configuration (void) |
| Return the libavcodec build-time configuration. More... | |
| const char * | avcodec_license (void) |
| Return the libavcodec license. More... | |
| AVCodecContext * | avcodec_alloc_context3 (const AVCodec *codec) |
| Allocate an AVCodecContext and set its fields to default values. More... | |
| void | avcodec_free_context (AVCodecContext **avctx) |
| Free the codec context and everything associated with it and write NULL to the provided pointer. More... | |
| const AVClass * | avcodec_get_class (void) |
| Get the AVClass for AVCodecContext. More... | |
| const attribute_deprecated AVClass * | avcodec_get_frame_class (void) |
| const AVClass * | avcodec_get_subtitle_rect_class (void) |
| Get the AVClass for AVSubtitleRect. More... | |
| int | avcodec_parameters_from_context (AVCodecParameters *par, const AVCodecContext *codec) |
| Fill the parameters struct based on the values from the supplied codec context. More... | |
| int | avcodec_parameters_to_context (AVCodecContext *codec, const AVCodecParameters *par) |
| Fill the codec context based on the values from the supplied codec parameters. More... | |
| int | avcodec_open2 (AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) |
| Initialize the AVCodecContext to use the given AVCodec. More... | |
| int | avcodec_close (AVCodecContext *avctx) |
| Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext itself). More... | |
| void | avsubtitle_free (AVSubtitle *sub) |
| Free all allocated data in the given subtitle struct. More... | |
| const AVBitStreamFilter * | av_bsf_get_by_name (const char *name) |
| const AVBitStreamFilter * | av_bsf_iterate (void **opaque) |
| Iterate over all registered bitstream filters. More... | |
| int | av_bsf_alloc (const AVBitStreamFilter *filter, AVBSFContext **ctx) |
| Allocate a context for a given bitstream filter. More... | |
| int | av_bsf_init (AVBSFContext *ctx) |
| Prepare the filter for use, after all the parameters and options have been set. More... | |
| int | av_bsf_send_packet (AVBSFContext *ctx, AVPacket *pkt) |
| Submit a packet for filtering. More... | |
| int | av_bsf_receive_packet (AVBSFContext *ctx, AVPacket *pkt) |
| Retrieve a filtered packet. More... | |
| void | av_bsf_flush (AVBSFContext *ctx) |
| Reset the internal bitstream filter state. More... | |
| void | av_bsf_free (AVBSFContext **ctx) |
| Free a bitstream filter context and everything associated with it; write NULL into the supplied pointer. More... | |
| const AVClass * | av_bsf_get_class (void) |
| Get the AVClass for AVBSFContext. More... | |
| AVBSFList * | av_bsf_list_alloc (void) |
| Allocate empty list of bitstream filters. More... | |
| void | av_bsf_list_free (AVBSFList **lst) |
| Free list of bitstream filters. More... | |
| int | av_bsf_list_append (AVBSFList *lst, AVBSFContext *bsf) |
| Append bitstream filter to the list of bitstream filters. More... | |
| int | av_bsf_list_append2 (AVBSFList *lst, const char *bsf_name, AVDictionary **options) |
| Construct new bitstream filter context given it's name and options and append it to the list of bitstream filters. More... | |
| int | av_bsf_list_finalize (AVBSFList **lst, AVBSFContext **bsf) |
| Finalize list of bitstream filters. More... | |
| int | av_bsf_list_parse_str (const char *str, AVBSFContext **bsf) |
| Parse string describing list of bitstream filters and create single AVBSFContext describing the whole chain of bitstream filters. More... | |
| int | av_bsf_get_null_filter (AVBSFContext **bsf) |
| Get null/pass-through bitstream filter. More... | |
| const AVCodec * | av_codec_iterate (void **opaque) |
| Iterate over all registered codecs. More... | |
| const AVCodec * | avcodec_find_decoder (enum AVCodecID id) |
| Find a registered decoder with a matching codec ID. More... | |
| const AVCodec * | avcodec_find_decoder_by_name (const char *name) |
| Find a registered decoder with the specified name. More... | |
| const AVCodec * | avcodec_find_encoder (enum AVCodecID id) |
| Find a registered encoder with a matching codec ID. More... | |
| const AVCodec * | avcodec_find_encoder_by_name (const char *name) |
| Find a registered encoder with the specified name. More... | |
| int | av_codec_is_encoder (const AVCodec *codec) |
| int | av_codec_is_decoder (const AVCodec *codec) |
| const AVCodecHWConfig * | avcodec_get_hw_config (const AVCodec *codec, int index) |
| Retrieve supported hardware configurations for a codec. More... | |
| const AVCodecDescriptor * | avcodec_descriptor_get (enum AVCodecID id) |
| const AVCodecDescriptor * | avcodec_descriptor_next (const AVCodecDescriptor *prev) |
| Iterate over all codec descriptors known to libavcodec. More... | |
| const AVCodecDescriptor * | avcodec_descriptor_get_by_name (const char *name) |
| enum AVMediaType | avcodec_get_type (enum AVCodecID codec_id) |
| Get the type of the given codec. More... | |
| const char * | avcodec_get_name (enum AVCodecID id) |
| Get the name of a codec. More... | |
Basic definitions, functions for querying libavcodec capabilities, allocating core structures, etc.
| #define AV_CODEC_FLAG_UNALIGNED (1 << 0) |
| #define AV_CODEC_FLAG_4MV (1 << 2) |
| #define AV_CODEC_FLAG_OUTPUT_CORRUPT (1 << 3) |
| #define AV_CODEC_FLAG_DROPCHANGED (1 << 5) |
| #define AV_CODEC_FLAG_PASS1 (1 << 9) |
| #define AV_CODEC_FLAG_PASS2 (1 << 10) |
| #define AV_CODEC_FLAG_GRAY (1 << 13) |
| #define AV_CODEC_FLAG_PSNR (1 << 15) |
| #define AV_CODEC_FLAG_TRUNCATED (1 << 16) |
| #define AV_CODEC_FLAG_INTERLACED_DCT (1 << 18) |
| #define AV_CODEC_FLAG_LOW_DELAY (1 << 19) |
| #define AV_CODEC_FLAG_GLOBAL_HEADER (1 << 22) |
Place global headers in extradata instead of every keyframe.
| #define AV_CODEC_FLAG_BITEXACT (1 << 23) |
| #define AV_CODEC_FLAG_AC_PRED (1 << 24) |
| #define AV_CODEC_FLAG_INTERLACED_ME (1 << 29) |
| #define AV_CODEC_FLAG2_FAST (1 << 0) |
| #define AV_CODEC_FLAG2_NO_OUTPUT (1 << 2) |
| #define AV_CODEC_FLAG2_LOCAL_HEADER (1 << 3) |
| #define AV_CODEC_FLAG2_DROP_FRAME_TIMECODE (1 << 13) |
| #define AV_CODEC_FLAG2_CHUNKS (1 << 15) |
| #define AV_CODEC_FLAG2_IGNORE_CROP (1 << 16) |
| #define AV_CODEC_FLAG2_SHOW_ALL (1 << 22) |
| #define AV_CODEC_FLAG2_EXPORT_MVS (1 << 28) |
| #define AV_CODEC_FLAG2_SKIP_MANUAL (1 << 29) |
| #define AV_CODEC_FLAG2_RO_FLUSH_NOOP (1 << 30) |
| #define AV_CODEC_EXPORT_DATA_MVS (1 << 0) |
| #define AV_CODEC_EXPORT_DATA_PRFT (1 << 1) |
| #define AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS (1 << 2) |
Decoding only.
Export the AVVideoEncParams structure through frame side data.
| #define AV_CODEC_EXPORT_DATA_FILM_GRAIN (1 << 3) |
| #define AV_GET_BUFFER_FLAG_REF (1 << 0) |
| #define AV_GET_ENCODE_BUFFER_FLAG_REF (1 << 0) |
| #define AV_CODEC_CAP_DRAW_HORIZ_BAND (1 << 0) |
| #define AV_CODEC_CAP_DR1 (1 << 1) |
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_DELAY (1 << 5) |
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_SMALL_LAST_FRAME (1 << 6) |
| #define AV_CODEC_CAP_SUBFRAMES (1 << 8) |
Codec can output multiple frames per AVPacket Normally demuxers return one frame at a time, demuxers which do not do are connected to a parser to split what they return into proper frames.
This flag is reserved to the very rare category of codecs which have a bitstream that cannot be split into frames without timeconsuming operations like full decoding. Demuxers carrying such bitstreams thus may return multiple frames in a packet. This has many disadvantages like prohibiting stream copy in many cases thus it should only be considered as a last resort.
| #define AV_CODEC_CAP_EXPERIMENTAL (1 << 9) |
| #define AV_CODEC_CAP_CHANNEL_CONF (1 << 10) |
| #define AV_CODEC_CAP_FRAME_THREADS (1 << 12) |
| #define AV_CODEC_CAP_SLICE_THREADS (1 << 13) |
| #define AV_CODEC_CAP_PARAM_CHANGE (1 << 14) |
| #define AV_CODEC_CAP_OTHER_THREADS (1 << 15) |
| #define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16) |
| #define AV_CODEC_CAP_AVOID_PROBING (1 << 17) |
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_HARDWARE (1 << 18) |
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_HYBRID (1 << 19) |
| #define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20) |
This codec takes the reordered_opaque field from input AVFrames and returns it in the corresponding field in AVCodecContext after encoding.
| #define AV_CODEC_CAP_ENCODER_FLUSH (1 << 21) |
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_PROP_INTRA_ONLY (1 << 0) |
Codec uses only intra compression.
Video and audio codecs only.
Definition at line 72 of file codec_desc.h.
| #define AV_CODEC_PROP_LOSSY (1 << 1) |
Codec supports lossy compression.
Audio and video codecs only.
Definition at line 78 of file codec_desc.h.
| #define AV_CODEC_PROP_LOSSLESS (1 << 2) |
Codec supports lossless compression.
Audio and video codecs only.
Definition at line 82 of file codec_desc.h.
| #define AV_CODEC_PROP_REORDER (1 << 3) |
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.
Definition at line 92 of file codec_desc.h.
| #define AV_CODEC_PROP_BITMAP_SUB (1 << 16) |
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.
Definition at line 97 of file codec_desc.h.
| #define AV_CODEC_PROP_TEXT_SUB (1 << 17) |
Subtitle codec is text based.
Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field.
Definition at line 102 of file codec_desc.h.
| enum AVAudioServiceType |
| enum AVSubtitleType |
| anonymous enum |
| Enumerator | |
|---|---|
| AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX | 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_FRAMES_CTX | 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_INTERNAL | 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_AD_HOC | 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.) |
| enum AVCodecID |
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
After adding new codec IDs, do not forget to add an entry to the codec descriptor list and bump libavcodec minor version.
| Enumerator | |
|---|---|
| AV_CODEC_ID_NONE | |
| 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 | |
| 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 | |
| AV_CODEC_ID_V410 | |
| 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 | |
| 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 | |
| AV_CODEC_ID_Y41P | |
| AV_CODEC_ID_AVRP | |
| AV_CODEC_ID_012V | |
| AV_CODEC_ID_AVUI | |
| AV_CODEC_ID_AYUV | |
| AV_CODEC_ID_TARGA_Y216 | |
| AV_CODEC_ID_V308 | |
| AV_CODEC_ID_V408 | |
| 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_FIRST_AUDIO | A dummy id pointing at the start of audio codecs. |
| AV_CODEC_ID_PCM_S16LE | |
| 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 | |
| AV_CODEC_ID_ADPCM_IMA_QT | |
| 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_AMR_NB | |
| AV_CODEC_ID_AMR_WB | |
| AV_CODEC_ID_RA_144 | |
| AV_CODEC_ID_RA_288 | |
| AV_CODEC_ID_ROQ_DPCM | |
| 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_MP2 | |
| 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 | |
| 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_FIRST_SUBTITLE | A dummy ID pointing at the start of subtitle codecs. |
| AV_CODEC_ID_DVD_SUBTITLE | |
| 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_FIRST_UNKNOWN | A dummy ID pointing at the start of various fake codecs. |
| AV_CODEC_ID_TTF | |
| 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_PROBE | codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it |
| AV_CODEC_ID_MPEG2TS | FAKE codec to indicate a raw MPEG-2 TS stream (only used by libavformat) |
| AV_CODEC_ID_MPEG4SYSTEMS | FAKE codec to indicate a MPEG-4 Systems stream (only used by libavformat) |
| AV_CODEC_ID_FFMETADATA | Dummy codec for streams containing only metadata information. |
| AV_CODEC_ID_WRAPPED_AVFRAME | Passthrough codec, AVFrames wrapped in AVPacket. |
Definition at line 46 of file codec_id.h.
| unsigned avcodec_version | ( | void | ) |
| const char* avcodec_configuration | ( | void | ) |
| const char* avcodec_license | ( | void | ) |
| AVCodecContext* avcodec_alloc_context3 | ( | const AVCodec * | codec | ) |
Allocate an AVCodecContext and set its fields to default values.
The resulting struct should be freed with avcodec_free_context().
| codec | if non-NULL, allocate private data and initialize defaults for the given codec. It is illegal to then call avcodec_open2() with a different codec. If NULL, then the codec-specific defaults won't be initialized, which may result in suboptimal default settings (this is important mainly for encoders, e.g. libx264). |
Definition at line 141 of file options.c.
Referenced by add_input_streams(), add_stream(), avcodec_dct_init(), avformat_new_stream(), config_input(), config_props(), cri_decode_init(), dash_init(), decoder_init(), dump_stream_format(), estimate_best_b_count(), ff_frame_thread_encoder_init(), ff_load_image(), imm5_init(), init_decoder(), init_encoder(), LLVMFuzzerTestOneInput(), main(), new_output_stream(), old_flac_header(), open_codec_context(), open_input_file(), open_output_file(), open_stream(), seek_test(), stream_component_open(), tdsc_init(), tiff_init(), video_decode(), and video_decode_example().
| void avcodec_free_context | ( | AVCodecContext ** | avctx | ) |
Free the codec context and everything associated with it and write NULL to the provided pointer.
Definition at line 156 of file options.c.
Referenced by avcodec_dct_init(), close_input_file(), close_stream(), cri_decode_close(), dash_free(), decoder_destroy(), dump_stream_format(), estimate_best_b_count(), ff_load_image(), ffmpeg_cleanup(), free_stream(), imm5_close(), LLVMFuzzerTestOneInput(), main(), movie_uninit(), old_flac_header(), open_input_file(), open_output_file(), seek_test(), stream_component_open(), tdsc_close(), tiff_end(), uninit(), video_decode(), and video_decode_example().
| const AVClass* avcodec_get_class | ( | void | ) |
Get the AVClass for AVCodecContext.
It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.
Definition at line 174 of file options.c.
Referenced by add_input_streams(), filter_codec_opts(), open_input_file(), open_output_file(), opt_default(), show_codec_opts(), and show_help_default().
| const attribute_deprecated AVClass* avcodec_get_frame_class | ( | void | ) |
| const AVClass* avcodec_get_subtitle_rect_class | ( | void | ) |
Get the AVClass for AVSubtitleRect.
It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.
| int avcodec_parameters_from_context | ( | AVCodecParameters * | par, |
| const AVCodecContext * | codec | ||
| ) |
Fill the parameters struct based on the values from the supplied codec context.
Any allocated fields in par are freed and replaced with duplicates of the corresponding fields in codec.
Definition at line 90 of file codec_par.c.
Referenced by add_input_streams(), aom_init(), avformat_find_stream_info(), dec_enc(), decode_bsfs_init(), init_output_stream(), init_output_stream_streamcopy(), librav1e_encode_init(), open_audio(), open_output_file(), and open_video().
| int avcodec_parameters_to_context | ( | AVCodecContext * | codec, |
| const AVCodecParameters * | par | ||
| ) |
Fill the codec context based on the values from the supplied codec parameters.
Any allocated fields in codec that have a corresponding field in par are freed and replaced with duplicates of the corresponding field in par. Fields in codec that do not have a counterpart in par are not touched.
Definition at line 147 of file codec_par.c.
Referenced by add_input_streams(), avformat_find_stream_info(), dash_init(), dump_stream_format(), ff_load_image(), init_output_stream_streamcopy(), main(), old_flac_header(), open_codec_context(), open_input_file(), open_stream(), read_frame_internal(), seek_test(), stream_component_open(), update_stream_avctx(), video_decode(), and video_decode_example().
| int avcodec_open2 | ( | AVCodecContext * | avctx, |
| const AVCodec * | codec, | ||
| AVDictionary ** | options | ||
| ) |
Initialize the AVCodecContext to use the given AVCodec.
Prior to using this function the context has to be allocated with avcodec_alloc_context3().
The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for retrieving a codec.
| avctx | The context to initialize. |
| codec | The codec to open this context for. If a non-NULL codec has been previously passed to avcodec_alloc_context3() or for this context, then this parameter MUST be either NULL or equal to the previously passed codec. |
| options | A dictionary filled with AVCodecContext and codec-private options. On return this object will be filled with options that were not found. |
Definition at line 135 of file avcodec.c.
Referenced by avformat_find_stream_info(), config_input(), config_props(), cri_decode_init(), dec_enc(), decoder_init(), estimate_best_b_count(), ff_frame_thread_encoder_init(), ff_load_image(), imm5_init(), init_decoder(), init_encoder(), init_input_stream(), init_output_stream(), LLVMFuzzerTestOneInput(), main(), open_audio(), open_codec_context(), open_input_file(), open_output_file(), open_stream(), open_video(), seek_test(), stream_component_open(), tdsc_init(), tiff_init(), try_decode_frame(), video_decode(), video_decode_example(), and wrap().
| int avcodec_close | ( | AVCodecContext * | avctx | ) |
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext itself).
Calling this function on an AVCodecContext that hasn't been opened will free the codec-specific data allocated in avcodec_alloc_context3() with a non-NULL codec. Subsequent calls will do nothing.
Definition at line 455 of file avcodec.c.
Referenced by avcodec_free_context(), avcodec_open2(), avformat_find_stream_info(), read_frame_internal(), transcode(), transcode_init(), and worker().
| void avsubtitle_free | ( | AVSubtitle * | sub | ) |
Free all allocated data in the given subtitle struct.
| sub | AVSubtitle to free. |
Definition at line 436 of file avcodec.c.
Referenced by avcodec_decode_subtitle2(), configure_filtergraph(), decode(), display_end_segment(), dvbsub_decode(), ffmpeg_cleanup(), frame_queue_unref_item(), process_frame(), subtitle_handler(), subtitle_thread(), transcode_subtitles(), and try_decode_frame().
| const AVBitStreamFilter* av_bsf_get_by_name | ( | const char * | name | ) |
Definition at line 78 of file bitstream_filters.c.
Referenced by aom_init(), bsf_list_append_internal(), detect_stream_specific(), extract_extradata_check(), extract_extradata_init(), ff_stream_add_bitstream_filter(), librav1e_encode_init(), read_header(), and show_help_bsf().
| const AVBitStreamFilter* av_bsf_iterate | ( | void ** | opaque | ) |
Iterate over all registered bitstream filters.
| opaque | a pointer where libavcodec will store the iteration state. Must point to NULL to start the iteration. |
Definition at line 67 of file bitstream_filters.c.
Referenced by av_bsf_get_by_name(), ff_bsf_child_class_iterate(), and show_bsfs().
| int av_bsf_alloc | ( | const AVBitStreamFilter * | filter, |
| AVBSFContext ** | ctx | ||
| ) |
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.
| filter | the filter for which to allocate an instance. |
| 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. |
Definition at line 92 of file bsf.c.
Referenced by aom_init(), av_bsf_get_null_filter(), av_bsf_list_finalize(), bsf_list_append_internal(), detect_stream_specific(), extract_extradata_init(), ff_stream_add_bitstream_filter(), librav1e_encode_init(), LLVMFuzzerTestOneInput(), and read_header().
| int av_bsf_init | ( | AVBSFContext * | ctx | ) |
Prepare the filter for use, after all the parameters and options have been set.
Definition at line 145 of file bsf.c.
Referenced by aom_init(), bsf_list_init(), decode_bsfs_init(), detect_stream_specific(), extract_extradata_init(), ff_stream_add_bitstream_filter(), init_output_bsfs(), librav1e_encode_init(), LLVMFuzzerTestOneInput(), open_slave(), and read_header().
| int av_bsf_send_packet | ( | AVBSFContext * | ctx, |
| AVPacket * | pkt | ||
| ) |
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.
| 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. |
Definition at line 198 of file bsf.c.
Referenced by avcodec_send_packet(), bsf_list_filter(), extract_extradata(), filter_packet(), librav1e_receive_packet(), LLVMFuzzerTestOneInput(), output_packet(), storeframe(), tee_write_packet(), and write_packets_from_bsfs().
| int av_bsf_receive_packet | ( | AVBSFContext * | ctx, |
| AVPacket * | pkt | ||
| ) |
Retrieve a filtered packet.
| [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. |
Definition at line 224 of file bsf.c.
Referenced by bsf_list_filter(), extract_extradata(), ff_decode_get_packet(), filter_packet(), librav1e_receive_packet(), LLVMFuzzerTestOneInput(), output_packet(), storeframe(), tee_write_packet(), and write_packets_from_bsfs().
| void av_bsf_flush | ( | AVBSFContext * | ctx | ) |
Reset the internal bitstream filter state.
Should be called e.g. when seeking.
Definition at line 186 of file bsf.c.
Referenced by avcodec_flush_buffers(), bsf_list_flush(), and LLVMFuzzerTestOneInput().
| void av_bsf_free | ( | AVBSFContext ** | ctx | ) |
Free a bitstream filter context and everything associated with it; write NULL into the supplied pointer.
Definition at line 40 of file bsf.c.
Referenced by aom_free(), av_bsf_alloc(), av_bsf_list_free(), avcodec_close(), avformat_find_stream_info(), bsf_list_append_internal(), bsf_list_close(), close_slave(), concat_read_close(), decode_bsfs_init(), extract_extradata_init(), ff_stream_add_bitstream_filter(), ffmpeg_cleanup(), free_stream(), librav1e_encode_close(), LLVMFuzzerTestOneInput(), and read_header().
| const AVClass* av_bsf_get_class | ( | void | ) |
Get the AVClass for AVBSFContext.
It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.
Definition at line 87 of file bsf.c.
Referenced by show_help_default().
| AVBSFList* av_bsf_list_alloc | ( | void | ) |
Allocate empty list of bitstream filters.
The list must be later freed by av_bsf_list_free() or finalized by av_bsf_list_finalize().
Definition at line 414 of file bsf.c.
Referenced by av_bsf_list_parse_str().
| void av_bsf_list_free | ( | AVBSFList ** | lst | ) |
Free list of bitstream filters.
| lst | Pointer to pointer returned by av_bsf_list_alloc() |
Definition at line 419 of file bsf.c.
Referenced by av_bsf_list_parse_str().
| int av_bsf_list_append | ( | AVBSFList * | lst, |
| AVBSFContext * | bsf | ||
| ) |
Append bitstream filter to the list of bitstream filters.
| lst | List to append to |
| bsf | Filter context to be appended |
Definition at line 432 of file bsf.c.
Referenced by bsf_list_append_internal().
| int av_bsf_list_append2 | ( | AVBSFList * | lst, |
| const char * | bsf_name, | ||
| AVDictionary ** | options | ||
| ) |
Construct new bitstream filter context given it's name and options and append it to the list of bitstream filters.
| lst | List to append to |
| bsf_name | Name of the bitstream filter |
| options | Options for the bitstream filter, can be set to NULL |
| int av_bsf_list_finalize | ( | AVBSFList ** | lst, |
| AVBSFContext ** | bsf | ||
| ) |
Finalize list of bitstream filters.
This function will transform AVBSFList to single 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, 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()
| lst | Filter list structure to be transformed | |
| [out] | bsf | Pointer to be set to newly created AVBSFContext structure representing the chain of bitstream filters |
Definition at line 483 of file bsf.c.
Referenced by av_bsf_list_parse_str().
| int av_bsf_list_parse_str | ( | const char * | str, |
| AVBSFContext ** | bsf | ||
| ) |
Parse string describing list of bitstream filters and create single AVBSFContext describing the whole chain of bitstream filters.
Resulting AVBSFContext can be treated as any other AVBSFContext freshly allocated by av_bsf_alloc().
| str | String describing chain of bitstream filters in format bsf1[=opt1=val1:opt2=val2][,bsf2] | |
| [out] | bsf | Pointer to be set to newly created AVBSFContext structure representing the chain of bitstream filters |
Definition at line 520 of file bsf.c.
Referenced by decode_bsfs_init(), new_output_stream(), and open_slave().
| int av_bsf_get_null_filter | ( | AVBSFContext ** | bsf | ) |
Get null/pass-through bitstream filter.
| [out] | bsf | Pointer to be set to new instance of pass-through bitstream filter |
Definition at line 554 of file bsf.c.
Referenced by av_bsf_list_parse_str(), and open_slave().
| const AVCodec* av_codec_iterate | ( | void ** | opaque | ) |
Iterate over all registered codecs.
| opaque | a pointer where libavcodec will store the iteration state. Must point to NULL to start the iteration. |
Definition at line 861 of file allcodecs.c.
Referenced by codec_child_class_iterate(), find_codec(), find_codec_by_name(), find_probe_decoder(), main(), next_codec_for_id(), and show_codec_opts().
Find a registered decoder with a matching codec ID.
| id | AVCodecID of the requested decoder |
Definition at line 909 of file allcodecs.c.
Referenced by add_input_streams(), avcodec_get_name(), avcodec_open2(), AVCodecInitialize(), choose_decoder(), cri_decode_init(), decoder_init(), dshow_cycle_formats(), ff_load_image(), filter_codec_opts(), find_codec_or_die(), find_decoder(), imm5_init(), main(), open_codec_context(), open_input_file(), open_stream(), seek_test(), show_codecs(), stream_component_open(), tdsc_init(), tiff_init(), video_decode(), and video_decode_example().
| const AVCodec* avcodec_find_decoder_by_name | ( | const char * | name | ) |
Find a registered decoder with the specified name.
| name | name of the requested decoder |
Definition at line 937 of file allcodecs.c.
Referenced by find_codec_or_die(), find_probe_decoder(), main(), show_help_codec(), and stream_component_open().
Find a registered encoder with a matching codec ID.
| id | AVCodecID of the requested encoder |
Definition at line 904 of file allcodecs.c.
Referenced by add_stream(), avcodec_get_name(), avcodec_open2(), choose_encoder(), config_input(), config_props(), estimate_best_b_count(), filter_codec_opts(), find_codec_or_die(), main(), open_output_file(), and show_codecs().
| const AVCodec* avcodec_find_encoder_by_name | ( | const char * | name | ) |
Find a registered encoder with the specified name.
| name | name of the requested encoder |
Definition at line 932 of file allcodecs.c.
Referenced by find_codec_or_die(), main(), and show_help_codec().
Definition at line 74 of file utils.c.
Referenced by alloc_frame_buffer(), avcodec_close(), avcodec_find_encoder(), avcodec_find_encoder_by_name(), avcodec_flush_buffers(), avcodec_open2(), avcodec_receive_packet(), avcodec_send_frame(), ff_slice_thread_init(), ff_snow_get_buffer(), init_band_stepsize(), init_prec(), main(), next_codec_for_id(), and print_codec().
Definition at line 79 of file utils.c.
Referenced by avcodec_close(), avcodec_find_decoder(), avcodec_find_decoder_by_name(), avcodec_flush_buffers(), avcodec_open2(), avcodec_receive_frame(), avcodec_send_packet(), ff_v4l2_m2m_codec_full_reinit(), find_probe_decoder(), next_codec_for_id(), v4l2_configure_contexts(), and v4l2_get_framesize_compressed().
| const AVCodecHWConfig* avcodec_get_hw_config | ( | const AVCodec * | codec, |
| int | index | ||
| ) |
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.
Definition at line 847 of file utils.c.
Referenced by avcodec_default_get_format(), get_format(), hw_device_match_by_codec(), hw_device_setup_for_decode(), hw_device_setup_for_encode(), main(), and print_codec().
| const AVCodecDescriptor* avcodec_descriptor_get | ( | enum AVCodecID | id | ) |
Definition at line 3501 of file codec_desc.c.
Referenced by asf_write_header1(), av_bsf_init(), avcodec_get_name(), avcodec_get_type(), avcodec_open2(), avcodec_profile_name(), ff_is_intra_only(), get_codec_name(), get_mimetype(), ico_check_attributes(), init_muxer(), init_output_stream(), list_formats(), main(), open_output_file(), show_help_muxer(), show_stream(), transcode_init(), unsupported_codec(), and vaapi_decode_make_config().
| const AVCodecDescriptor* avcodec_descriptor_next | ( | const AVCodecDescriptor * | prev | ) |
Iterate over all codec descriptors known to libavcodec.
| prev | previous descriptor. NULL to get the first descriptor. |
Definition at line 3507 of file codec_desc.c.
Referenced by avcodec_descriptor_get_by_name(), get_codecs_sorted(), and main().
| const AVCodecDescriptor* avcodec_descriptor_get_by_name | ( | const char * | name | ) |
Definition at line 3516 of file codec_desc.c.
Referenced by find_codec_or_die(), main(), show_help_codec(), and v4l2_read_header().
| enum AVMediaType avcodec_get_type | ( | enum AVCodecID | codec_id | ) |
Get the type of the given codec.
Definition at line 3526 of file codec_desc.c.
Referenced by m4sl_cb(), mkv_query_codec(), and mxf_parse_structural_metadata().
| const char* avcodec_get_name | ( | enum AVCodecID | id | ) |
Get the name of a codec.
Definition at line 446 of file utils.c.
Referenced by add_stream(), amv_init(), av_bsf_init(), avcodec_string(), avformat_find_stream_info(), choose_encoder(), configure_filtergraph(), device_try_init(), ff_framehash_write_header(), ff_put_wav_header(), flv_init(), get_audio_flags(), get_dvb_stream_type(), get_m2ts_stream_type(), init_input_stream(), log_slave(), lrc_write_header(), mkv_init(), mkv_write_codecprivate(), mov_init(), mpeg_mux_init(), mxf_parse_structural_metadata(), read_frame_internal(), rtp_write_header(), scc_write_header(), srt_write_header(), stream_component_open(), and wsaud_write_init().
1.8.17