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FFmpeg
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Modules | |
| AVHWAccel | |
Data Structures | |
| struct | RcOverride |
| struct | AVCodecContext |
| main external API structure. More... | |
| struct | AVSubtitleRect |
| struct | AVSubtitle |
| 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... | |
| struct | AVCodecParameters |
| This struct describes the properties of an encoded stream. 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_RECON_FRAME (1 << 6) |
| Request the encoder to output reconstructed frames, i.e. frames that would be produced by decoding the encoded bistream. More... | |
| #define | AV_CODEC_FLAG_COPY_OPAQUE (1 << 7) |
| #define | AV_CODEC_FLAG_FRAME_DURATION (1 << 8) |
| Signal to the encoder that the values of AVFrame.duration are valid and should be used (typically for transferring them to output packets). 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_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_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_FLAG2_ICC_PROFILES (1U << 31) |
| Generate/parse ICC profiles on encode/decode, as appropriate for the type of file. 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_CODEC_EXPORT_DATA_ENHANCEMENTS (1 << 4) |
| 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_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_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 encoder can reorder user opaque values from input AVFrames and return them with corresponding output packets. More... | |
| #define | AV_CODEC_CAP_ENCODER_FLUSH (1 << 21) |
| This encoder can be flushed using avcodec_flush_buffers(). More... | |
| #define | AV_CODEC_CAP_ENCODER_RECON_FRAME (1 << 22) |
| The encoder is able to output reconstructed frame data, i.e. 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_FIELDS (1 << 4) |
| Video codec supports separate coding of fields in interlaced frames. 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 AVClass * | avcodec_get_subtitle_rect_class (void) |
| Get the AVClass for AVSubtitleRect. More... | |
| int | avcodec_parameters_from_context (struct 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 struct 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... | |
| attribute_deprecated 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 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 char * | av_get_profile_name (const AVCodec *codec, int profile) |
| Return a name for the specified profile, if available. More... | |
| 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... | |
| int | av_get_bits_per_sample (enum AVCodecID codec_id) |
| Return codec bits per sample. More... | |
| int | av_get_exact_bits_per_sample (enum AVCodecID codec_id) |
| Return codec bits per sample. More... | |
| const char * | avcodec_profile_name (enum AVCodecID codec_id, int profile) |
| Return a name for the specified profile, if available. More... | |
| enum AVCodecID | av_get_pcm_codec (enum AVSampleFormat fmt, int be) |
| Return the PCM codec associated with a sample format. More... | |
| AVCodecParameters * | avcodec_parameters_alloc (void) |
| Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0). More... | |
| void | avcodec_parameters_free (AVCodecParameters **par) |
| Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer. More... | |
| int | avcodec_parameters_copy (AVCodecParameters *dst, const AVCodecParameters *src) |
| Copy the contents of src to dst. More... | |
| int | av_get_audio_frame_duration2 (AVCodecParameters *par, int frame_bytes) |
| This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext. 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) |
Don't output frames whose parameters differ from first decoded frame in stream.
| #define AV_CODEC_FLAG_RECON_FRAME (1 << 6) |
Request the encoder to output reconstructed frames, i.e. frames that would be produced by decoding the encoded bistream.
These frames may be retrieved by calling avcodec_receive_frame() immediately after a successful call to avcodec_receive_packet().
Should only be used with encoders flagged with the AV_CODEC_CAP_ENCODER_RECON_FRAME capability.
| #define AV_CODEC_FLAG_COPY_OPAQUE (1 << 7) |
| #define AV_CODEC_FLAG_FRAME_DURATION (1 << 8) |
Signal to the encoder that the values of AVFrame.duration are valid and should be used (typically for transferring them to output packets).
If this flag is not set, frame durations are ignored.
| #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_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_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_FLAG2_ICC_PROFILES (1U << 31) |
| #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_CODEC_EXPORT_DATA_ENHANCEMENTS (1 << 4) |
| #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_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 encoder can reorder user opaque values from input AVFrames and return them with corresponding output packets.
| #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_CAP_ENCODER_RECON_FRAME (1 << 22) |
| #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_FIELDS (1 << 4) |
Video codec supports separate coding of fields in interlaced frames.
Definition at line 97 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 103 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 108 of file codec_desc.h.
| 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_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_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_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_ADPCM_IMA_ACORN | |
| AV_CODEC_ID_ADPCM_XMD | |
| AV_CODEC_ID_ADPCM_IMA_XBOX | |
| 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_WADY_DPCM | |
| AV_CODEC_ID_CBD2_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_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_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_SMPTE_2038 | |
| AV_CODEC_ID_LCEVC | |
| 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. |
| AV_CODEC_ID_VNULL | Dummy null video codec, useful mainly for development and debugging. Null encoder/decoder discard all input and never return any output. |
| AV_CODEC_ID_ANULL | Dummy null audio codec, useful mainly for development and debugging. Null encoder/decoder discard all input and never return any output. |
Definition at line 49 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 149 of file options.c.
Referenced by add_stream(), avcodec_dct_init(), avformat_new_stream(), codec_close(), config_input(), config_props(), cri_decode_init(), dash_init(), dec_open(), ds_open(), dump_stream_format(), dump_stream_group(), enc_alloc(), estimate_best_b_count(), ff_frame_thread_encoder_init(), ff_load_image(), flac_read_timestamp(), ftr_init(), imm5_init(), init_decoder(), init_encoder(), LLVMFuzzerTestOneInput(), main(), old_flac_header(), open_codec_context(), open_input_file(), open_output_file(), open_stream(), seek_test(), stream_component_open(), streamcopy_init(), 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 164 of file options.c.
Referenced by avcodec_dct_init(), close_input_file(), close_stream(), codec_close(), cri_decode_close(), dash_free(), dec_free(), decoder_destroy(), ds_free(), dump_stream_format(), dump_stream_group(), enc_free(), estimate_best_b_count(), ff_frame_thread_encoder_init(), ff_free_stream(), ff_load_image(), flac_close(), ftr_close(), imm5_close(), LLVMFuzzerTestOneInput(), main(), movie_uninit(), old_flac_header(), open_input_file(), open_output_file(), seek_test(), stream_component_open(), streamcopy_init(), tdsc_close(), tiff_end(), uninit(), video_decode(), video_decode_example(), and worker().
| 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 184 of file options.c.
Referenced by check_avoptions_used(), filter_codec_opts(), opt_default(), show_codec_opts(), and show_help_default().
| 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 | ( | struct 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 137 of file codec_par.c.
Referenced by aom_init(), avformat_find_stream_info(), codec_close(), dec_enc(), decode_bsfs_init(), encode_frame(), ff_dovi_configure(), ff_frame_thread_encoder_init(), mediacodec_init_bsf(), of_stream_init(), open_audio(), open_output_file(), open_video(), qsv_enc_init(), and streamcopy_init().
| int avcodec_parameters_to_context | ( | AVCodecContext * | codec, |
| const struct 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.
Referenced by avformat_find_stream_info(), codec_close(), dash_init(), dec_open(), ds_open(), dump_stream_format(), dump_stream_group(), ff_dovi_configure(), ff_frame_thread_encoder_init(), ff_load_image(), flac_read_timestamp(), main(), old_flac_header(), open_codec_context(), open_input_file(), open_stream(), read_frame_internal(), seek_test(), stream_component_open(), streamcopy_init(), 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.
Depending on the codec, you might need to set options in the codec context also for decoding (e.g. width, height, or the pixel or audio sample format in the case the information is not available in the bitstream, as when decoding raw audio or video).
Options in the codec context can be set either by setting them in the options AVDictionary, or by setting the values in the context itself, directly or by using the av_opt_set() API before calling this function.
Example:
In the case AVCodecParameters are available (e.g. when demuxing a stream using libavformat, and accessing the AVStream contained in the demuxer), the codec parameters can be copied to the codec context using avcodec_parameters_to_context(), as in the following example:
| 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, which are set on top of the options already set in avctx, can be NULL. On return this object will be filled with options that were not found in the avctx codec context. |
Definition at line 143 of file avcodec.c.
Referenced by avformat_find_stream_info(), config_input(), config_props(), cri_decode_init(), dec_enc(), dec_open(), ds_run(), enc_open(), estimate_best_b_count(), ff_frame_thread_encoder_init(), ff_load_image(), ftr_init(), imm5_init(), init_decoder(), init_encoder(), LLVMFuzzerTestOneInput(), main(), open_audio(), open_codec_context(), open_input_file(), open_output_file(), open_stream(), open_video(), process_frame(), seek_test(), stream_component_open(), tdsc_init(), tiff_init(), try_decode_frame(), video_decode(), video_decode_example(), and wrap().
| attribute_deprecated 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.
| void avsubtitle_free | ( | AVSubtitle * | sub | ) |
Free all allocated data in the given subtitle struct.
| sub | AVSubtitle to free. |
Definition at line 406 of file avcodec.c.
Referenced by avcodec_decode_subtitle2(), copy_av_subtitle(), display_end_segment(), frame_queue_unref_item(), process_frame(), subtitle_free(), subtitle_handler(), subtitle_thread(), subtitle_wrap_frame(), transcode_subtitles(), and try_decode_frame().
| 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 964 of file allcodecs.c.
Referenced by choose_decoder(), 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 1013 of file allcodecs.c.
Referenced by avcodec_get_name(), avcodec_open2(), AVCodecInitialize(), choose_decoder(), cri_decode_init(), dec_standalone_open(), ds_open(), dshow_cycle_formats(), ff_find_decoder(), ff_load_image(), find_codec(), ftr_init(), 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 1041 of file allcodecs.c.
Referenced by config_input(), dec_create(), find_codec(), find_probe_decoder(), main(), open_input_file(), 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 1008 of file allcodecs.c.
Referenced by add_stream(), avcodec_get_name(), avcodec_open2(), choose_encoder(), config_props(), find_codec(), main(), map_auto_subtitle(), 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 1036 of file allcodecs.c.
Referenced by config_input(), find_codec(), main(), and show_help_codec().
| int av_codec_is_encoder | ( | const AVCodec * | codec | ) |
Definition at line 78 of file utils.c.
Referenced by avcodec_find_encoder(), avcodec_find_encoder_by_name(), avcodec_flush_buffers(), avcodec_open2(), avcodec_receive_packet(), avcodec_send_frame(), ff_codec_close(), ff_slice_thread_init(), init_prec(), main(), next_codec_for_id(), and print_codec().
| int av_codec_is_decoder | ( | const AVCodec * | codec | ) |
Definition at line 86 of file utils.c.
Referenced by avcodec_find_decoder(), avcodec_find_decoder_by_name(), avcodec_open2(), avcodec_receive_frame(), avcodec_send_packet(), choose_decoder(), ff_codec_close(), ff_decode_receive_frame(), ff_get_buffer(), find_probe_decoder(), get_category(), main(), next_codec_for_id(), v4l2_configure_contexts(), and v4l2_get_framesize_compressed().
| const char* av_get_profile_name | ( | const AVCodec * | codec, |
| int | profile | ||
| ) |
| 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 839 of file utils.c.
Referenced by avcodec_default_get_format(), choose_decoder(), 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 3766 of file codec_desc.c.
Referenced by asf_write_header1(), av_bsf_init(), avcodec_get_name(), avcodec_get_type(), avcodec_open2(), avcodec_profile_name(), dec_standalone_open(), ff_is_intra_only(), get_codec_name(), get_mimetype(), init_muxer(), ist_add(), list_formats(), main(), map_auto_subtitle(), new_stream_subtitle(), print_stream_maps(), read_frame_internal(), show_help_bsf(), show_help_muxer(), show_stream(), unsupported_codec(), update_stream_avctx(), 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 3772 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 3781 of file codec_desc.c.
Referenced by concat_parse_script(), find_codec(), 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 3791 of file codec_desc.c.
Referenced by avformat_query_codec(), m4sl_cb(), and mxf_parse_structural_metadata().
| const char* avcodec_get_name | ( | enum AVCodecID | id | ) |
Get the name of a codec.
Definition at line 409 of file utils.c.
Referenced by add_stream(), amv_init(), av_bsf_init(), avcodec_string(), avformat_find_stream_info(), choose_encoder(), demux_stream_alloc(), device_try_init(), ff_framehash_write_header(), ff_put_wav_header(), ff_vk_decode_init(), ff_vulkan_encode_init(), flv_init(), get_audio_flags(), get_dvb_stream_type(), get_m2ts_stream_type(), iamf_init(), ico_check_attributes(), init_muxer(), ist_use(), log_slave(), lrc_write_header(), main(), mkv_assemble_codecprivate(), mkv_init(), mov_init(), mov_write_squashed_packets(), mpeg_mux_init(), mxf_parse_structural_metadata(), read_frame_internal(), rtp_write_header(), srt_write_header(), stream_component_open(), and vulkan_decode_get_profile().
| int av_get_bits_per_sample | ( | enum AVCodecID | codec_id | ) |
Return codec bits per sample.
| [in] | codec_id | the codec |
Definition at line 550 of file utils.c.
Referenced by adpcm_encode_init(), aiff_write_header(), avformat_find_stream_info(), caf_write_header(), epaf_read_header(), ff_alsa_open(), ff_pcm_default_packet_size(), ff_pcm_read_seek(), ff_put_wav_header(), ff_voc_get_packet(), get_aiff_header(), get_bit_rate(), gxf_packet(), iff_read_header(), init(), init_muxer(), ircam_read_header(), mkv_write_track(), mov_get_codec_tag(), mov_init(), mov_parse_stsd_audio(), mov_read_pcmc(), mov_write_audio_tag(), mxf_handle_missing_index_segment(), mxf_init(), mxf_parse_structural_metadata(), mxf_set_audio_pts(), mxf_write_generic_sound_common(), oma_read_header(), pcm_decode_frame(), pcm_decode_init(), pcm_encode_frame(), pcm_encode_init(), pcm_read_header(), read_header(), rso_read_header(), show_stream(), and wsaud_write_header().
| int av_get_exact_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.
| [in] | codec_id | the codec |
Definition at line 457 of file utils.c.
Referenced by av_get_bits_per_sample(), encode_preinit_audio(), get_audio_frame_duration(), imf_read_packet(), mov_write_pcmc_tag(), and ost_bind_filter().
| const char* avcodec_profile_name | ( | enum AVCodecID | codec_id, |
| int | profile | ||
| ) |
Return a name for the specified profile, if available.
| codec_id | the ID of the codec to which the requested profile belongs |
| profile | the profile value for which a name is requested |
Definition at line 442 of file utils.c.
Referenced by avcodec_string(), ff_vulkan_encode_init(), init_profile(), show_stream(), and vulkan_decode_get_profile().
| enum AVCodecID av_get_pcm_codec | ( | enum AVSampleFormat | fmt, |
| int | be | ||
| ) |
Return the PCM codec associated with a sample format.
| be | endianness, 0 for little, 1 for big, -1 (or anything else) for native |
Definition at line 528 of file utils.c.
Referenced by lavfi_read_header(), and main().
| AVCodecParameters* avcodec_parameters_alloc | ( | void | ) |
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
The returned struct must be freed with avcodec_parameters_free().
Definition at line 56 of file codec_par.c.
Referenced by audio_element_obu(), av_bsf_alloc(), avformat_new_stream(), codec_close(), encode_frame(), ff_dovi_configure(), ff_frame_thread_encoder_init(), ff_mov_init_hinting(), flv_read_packet(), frame_data_ensure(), ist_add(), mov_create_chapter_track(), mov_create_timecode_track(), and ost_add().
| void avcodec_parameters_free | ( | AVCodecParameters ** | par | ) |
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer.
Definition at line 66 of file codec_par.c.
Referenced by av_bsf_free(), codec_close(), encode_frame(), ff_dovi_configure(), ff_frame_thread_encoder_init(), ff_free_stream(), ff_iamf_free_audio_element(), ff_mov_close_hinting(), ff_mov_init_hinting(), flv_read_packet(), frame_data_free(), ist_free(), mov_free(), and ost_free().
| int avcodec_parameters_copy | ( | AVCodecParameters * | dst, |
| const AVCodecParameters * | src | ||
| ) |
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.
Definition at line 106 of file codec_par.c.
Referenced by asfrtp_parse_sdp_line(), av1_read_header(), av_bsf_init(), bsf_init(), bsf_list_init(), copy_stream_props(), dash_init(), detect_stream_specific(), evc_read_header(), extract_extradata_init(), ff_rtp_chain_mux_open(), ff_stream_add_bitstream_filter(), frame_data_ensure(), hds_write_header(), hls_mux_init(), iamf_read_header(), ism_write_header(), ist_add(), main(), mov_init_ttml_writer(), mpegts_init(), open_demux_for_component(), open_output_file(), open_slave(), read_gab2_sub(), rtp_mpegts_write_header(), sap_fetch_packet(), sap_read_header(), set_stream_info_from_input_stream(), stream_params_copy(), and write_muxed_file().
| int av_get_audio_frame_duration2 | ( | AVCodecParameters * | par, |
| int | frame_bytes | ||
| ) |
This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext.
Definition at line 805 of file utils.c.
Referenced by adp_read_header(), binka_read_packet(), build_frame_code(), compute_frame_duration(), compute_muxer_pkt_fields(), enable_pcr_generation_for_stream(), ff_parse_specific_params(), ff_put_wav_header(), ff_voc_get_packet(), get_aiff_header(), guess_pkt_duration(), mkv_write_track(), msf_read_header(), mux_fixup_ts(), rm_write_header(), rsd_read_header(), rtp_send_ilbc(), rv10_write_header(), svs_read_header(), swf_write_audio(), and vpk_read_seek().
1.8.17