#include <avcodec.h>
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const char * | name |
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const char * | long_name |
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enum AVMediaType | type |
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enum AVCodecID | id |
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int | capabilities |
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const AVRational * | supported_framerates |
| array of supported framerates, or NULL if any, array is terminated by {0,0} More...
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enum AVPixelFormat * | pix_fmts |
| array of supported pixel formats, or NULL if unknown, array is terminated by -1 More...
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const int * | supported_samplerates |
| array of supported audio samplerates, or NULL if unknown, array is terminated by 0 More...
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enum AVSampleFormat * | sample_fmts |
| array of supported sample formats, or NULL if unknown, array is terminated by -1 More...
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const uint64_t * | channel_layouts |
| array of support channel layouts, or NULL if unknown. array is terminated by 0 More...
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uint8_t | max_lowres |
| maximum value for lowres supported by the decoder, no direct access, use av_codec_get_max_lowres() More...
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const AVClass * | priv_class |
| AVClass for the private context. More...
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const AVProfile * | profiles |
| array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} More...
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int | priv_data_size |
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struct AVCodec * | next |
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const AVCodecDefault * | defaults |
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void(* | init_static_data )(struct AVCodec *codec) |
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int(* | init )(AVCodecContext *) |
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int(* | encode_sub )(AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub) |
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int(* | encode2 )(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr) |
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int(* | decode )(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt) |
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int(* | close )(AVCodecContext *) |
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int(* | send_frame )(AVCodecContext *avctx, const AVFrame *frame) |
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int(* | send_packet )(AVCodecContext *avctx, const AVPacket *avpkt) |
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int(* | receive_frame )(AVCodecContext *avctx, AVFrame *frame) |
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int(* | receive_packet )(AVCodecContext *avctx, AVPacket *avpkt) |
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void(* | flush )(AVCodecContext *) |
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int | caps_internal |
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int(* | init_thread_copy )(AVCodecContext *) |
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int(* | update_thread_context )(AVCodecContext *dst, const AVCodecContext *src) |
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int AVCodec::capabilities |
Codec capabilities. see AV_CODEC_CAP_*
int AVCodec::caps_internal |
Internal codec capabilities. See FF_CODEC_CAP_* in internal.h
const uint64_t* AVCodec::channel_layouts |
array of support channel layouts, or NULL if unknown. array is terminated by 0
Private codec-specific defaults.
Encode data to an AVPacket.
- Parameters
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| avctx | codec context |
| avpkt | output AVPacket (may contain a user-provided buffer) |
[in] | frame | AVFrame containing the raw data to be encoded |
[out] | got_packet_ptr | encoder sets to 0 or 1 to indicate that a non-empty packet was returned in avpkt. |
- Returns
- 0 on success, negative error code on failure
Flush buffers. Will be called when seeking
void(* AVCodec::init_static_data) (struct AVCodec *codec) |
If defined, called on thread contexts when they are created. If the codec allocates writable tables in init(), re-allocate them here. priv_data will be set to a copy of the original.
const char* AVCodec::long_name |
Descriptive name for the codec, meant to be more human readable than name. You should use the NULL_IF_CONFIG_SMALL() macro to define it.
uint8_t AVCodec::max_lowres |
const char* AVCodec::name |
Name of the codec implementation. The name is globally unique among encoders and among decoders (but an encoder and a decoder can share the same name). This is the primary way to find a codec from the user perspective.
array of supported pixel formats, or NULL if unknown, array is terminated by -1
int AVCodec::priv_data_size |
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
array of supported sample formats, or NULL if unknown, array is terminated by -1
Decode/encode API with decoupled packet/frame dataflow. The API is the same as the avcodec_ prefixed APIs (avcodec_send_frame() etc.), except that:
- never called if the codec is closed or the wrong type,
- AVPacket parameter change side data is applied right before calling AVCodec->send_packet,
- if AV_CODEC_CAP_DELAY is not set, drain packets or frames are never sent,
- only one drain packet is ever passed down (until the next flush()),
- a drain AVPacket is always NULL (no need to check for avpkt->size).
array of supported framerates, or NULL if any, array is terminated by {0,0}
const int* AVCodec::supported_samplerates |
array of supported audio samplerates, or NULL if unknown, array is terminated by 0
Copy necessary context variables from a previous thread context to the current one. If not defined, the next thread will start automatically; otherwise, the codec must call ff_thread_finish_setup().
dst and src will (rarely) point to the same context, in which case memcpy should be skipped.
The documentation for this struct was generated from the following file:
- src/acoustid/chromaprint/libavcodec/avcodec.h