Data Fields

AVCodec Struct Reference

AVCodec. More...

#include <avcodec.h>

Data Fields

const char * name
 Name of the codec implementation.
enum AVMediaType type
enum CodecID id
int priv_data_size
int(* init )(AVCodecContext *)
int(* encode )(AVCodecContext *, uint8_t *buf, int buf_size, void *data)
int(* close )(AVCodecContext *)
int(* decode )(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
int capabilities
 Codec capabilities.
struct AVCodecnext
void(* flush )(AVCodecContext *)
 Flush buffers.
const AVRationalsupported_framerates
 array of supported framerates, or NULL if any, array is terminated by {0,0}
enum PixelFormatpix_fmts
 array of supported pixel formats, or NULL if unknown, array is terminated by -1
const char * long_name
 Descriptive name for the codec, meant to be more human readable than name.
const int * supported_samplerates
 array of supported audio samplerates, or NULL if unknown, array is terminated by 0
enum AVSampleFormatsample_fmts
 array of supported sample formats, or NULL if unknown, array is terminated by -1
const int64_t * channel_layouts
 array of support channel layouts, or NULL if unknown. array is terminated by 0
uint8_t max_lowres
 maximum value for lowres supported by the decoder
const AVClasspriv_class
 AVClass for the private context.
const AVProfileprofiles
 array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
Frame-level threading support functions

int(* init_thread_copy )(AVCodecContext *)
 If defined, called on thread contexts when they are created.
int(* update_thread_context )(AVCodecContext *dst, const AVCodecContext *src)
 Copy necessary context variables from a previous thread context to the current one.

Detailed Description

AVCodec.

Definition at line 2817 of file avcodec.h.


Field Documentation

const int64_t * AVCodec::channel_layouts

array of support channel layouts, or NULL if unknown. array is terminated by 0

Definition at line 2852 of file avcodec.h.

Referenced by avcodec_open2().

Definition at line 2830 of file avcodec.h.

Referenced by avcodec_close(), encode_close(), and frame_thread_free().

int(* AVCodec::decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
int(* AVCodec::encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data)

Flush buffers.

Will be called when seeking

Definition at line 2842 of file avcodec.h.

Referenced by avcodec_flush_buffers(), and ff_thread_flush().

Definition at line 2828 of file avcodec.h.

Referenced by avcodec_open2(), encode_init(), and frame_thread_init().

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.

Definition at line 2866 of file avcodec.h.

Referenced by frame_thread_init().

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.

Definition at line 2849 of file avcodec.h.

Referenced by show_stream().

maximum value for lowres supported by the decoder

Definition at line 2853 of file avcodec.h.

Referenced by avcodec_open2(), and stream_component_open().

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.

Definition at line 2824 of file avcodec.h.

Referenced by asf_write_header1(), avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_string(), choose_pixel_fmt(), choose_sample_fmt(), compute_status(), context_to_name(), ffserver_opt_preset(), find_codec_or_die(), init(), mov_write_video_tag(), opt_codecs(), sdp_parse_rtpmap(), show_stream(), wav_write_header(), and write_frame().

array of supported pixel formats, or NULL if unknown, array is terminated by -1

Definition at line 2844 of file avcodec.h.

Referenced by choose_pixel_fmt(), decode_slice_header(), ff_h263_decode_init(), svq3_decode_init(), and vc1_decode_init().

AVClass for the private context.

Definition at line 2854 of file avcodec.h.

Referenced by avcodec_close(), avcodec_get_context_defaults3(), avcodec_open2(), opt_default(), opt_find(), opt_help(), and set_context_opts().

array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}

Definition at line 2855 of file avcodec.h.

Referenced by av_get_profile_name().

array of supported sample formats, or NULL if unknown, array is terminated by -1

Definition at line 2851 of file avcodec.h.

Referenced by avcodec_open2(), choose_sample_fmt(), pcm_decode_frame(), pcm_decode_init(), and pcm_encode_frame().

array of supported framerates, or NULL if any, array is terminated by {0,0}

Definition at line 2843 of file avcodec.h.

Referenced by transcode().

array of supported audio samplerates, or NULL if unknown, array is terminated by 0

Definition at line 2850 of file avcodec.h.

Referenced by avcodec_open2(), and choose_sample_rate().

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.

Definition at line 2874 of file avcodec.h.

Referenced by ff_thread_get_buffer(), frame_worker_thread(), and update_context_from_thread().


The documentation for this struct was generated from the following files: