Libav
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#include <avcodec.h>
Data Fields | |
const char * | name |
Name of the codec implementation. More... | |
const char * | long_name |
Descriptive name for the codec, meant to be more human readable than name. More... | |
enum AVMediaType | type |
enum AVCodecID | id |
int | capabilities |
Codec capabilities. More... | |
const AVRational * | supported_framerates |
array of supported framerates, or NULL if any, array is terminated by {0,0} More... | |
enum AVPixelFormat * | pix_fmts |
array of supported pixel formats, or NULL if unknown, array is terminated by -1 More... | |
const int * | supported_samplerates |
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 More... | |
enum AVSampleFormat * | sample_fmts |
array of supported sample formats, or NULL if unknown, array is terminated by -1 More... | |
const uint64_t * | channel_layouts |
array of support channel layouts, or NULL if unknown. array is terminated by 0 More... | |
attribute_deprecated uint8_t | max_lowres |
maximum value for lowres supported by the decoder More... | |
const AVClass * | priv_class |
AVClass for the private context. More... | |
const AVProfile * | profiles |
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} More... | |
int | priv_data_size |
struct AVCodec * | next |
const AVCodecDefault * | defaults |
Private codec-specific defaults. More... | |
void(* | init_static_data )(struct AVCodec *codec) |
Initialize codec static data, called from avcodec_register(). More... | |
int(* | init )(AVCodecContext *) |
int(* | encode_sub )(AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub) |
int(* | encode2 )(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr) |
Encode data to an AVPacket. More... | |
int(* | decode )(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt) |
int(* | close )(AVCodecContext *) |
int(* | send_frame )(AVCodecContext *avctx, const AVFrame *frame) |
Decode/encode API with decoupled packet/frame dataflow. More... | |
int(* | send_packet )(AVCodecContext *avctx, const AVPacket *avpkt) |
int(* | receive_frame )(AVCodecContext *avctx, AVFrame *frame) |
int(* | receive_packet )(AVCodecContext *avctx, AVPacket *avpkt) |
void(* | flush )(AVCodecContext *) |
Flush buffers. More... | |
int | caps_internal |
Internal codec capabilities. More... | |
Frame-level threading support functions | |
int(* | init_thread_copy )(AVCodecContext *) |
If defined, called on thread contexts when they are created. More... | |
int(* | update_thread_context )(AVCodecContext *dst, const AVCodecContext *src) |
Copy necessary context variables from a previous thread context to the current one. More... | |
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 3127 of file avcodec.h.
Referenced by abort_codec_experimental(), amr_decode_fix_avctx(), avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_open2(), context_to_name(), cyuv_decode_frame(), decode_end(), decode_frame(), encode_init(), ff_vp8_decode_init(), find_codec_or_die(), flashsv_decode_frame(), g726_reset(), mpeg12_class(), mvc_decode_end(), new_output_stream(), new_video_stream(), pnm_decode_frame(), pnm_encode_init(), print_codec(), print_codecs(), print_codecs_for_id(), set_encoder_id(), show_codecs(), transcode_init(), vp3_init_thread_copy(), and vp8_free().
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 3132 of file avcodec.h.
Referenced by print_codec(), and print_codecs().
enum AVMediaType AVCodec::type |
Definition at line 3133 of file avcodec.h.
Referenced by avcodec_open2(), find_codec_or_die(), init_context_defaults(), poll_filter(), print_codec(), and process_input().
enum AVCodecID AVCodec::id |
Definition at line 3134 of file avcodec.h.
Referenced by a64multi_encode_init(), abort_codec_experimental(), adpcm_compress_trellis(), adpcm_decode_frame(), adpcm_decode_init(), adpcm_encode_frame(), adpcm_encode_init(), avcodec_open2(), choose_decoder(), choose_encoder(), decode_end(), decode_frame(), decode_init(), dpcm_decode_frame(), dpcm_decode_init(), eightsvx_decode_init(), encode_init(), ff_h263_decode_init(), ff_mjpeg_decode_init(), ff_mjpeg_encode_picture_header(), ff_mpv_encode_init(), ff_wma_init(), find_encdec(), get_nb_samples(), h261_decode_init(), h263_get_format(), mpeg_decode_init(), new_output_stream(), next_codec_for_id(), nvenc_codec_specific_pic_params(), nvenc_setup_codec_config(), nvenc_setup_device(), omx_component_init(), omx_encode_init(), pcm_decode_frame(), pcm_decode_init(), pcm_encode_frame(), pcm_encode_init(), transcode_init(), v4l2_read_header(), vaapi_mpeg4_decode_slice(), vaapi_mpeg4_start_frame(), vdpau_mpeg4_start_frame(), vp6_decode_init(), and wma_decode_init().
int AVCodec::capabilities |
Codec capabilities.
see AV_CODEC_CAP_*
Definition at line 3139 of file avcodec.h.
Referenced by abort_codec_experimental(), apply_param_change(), audio_decode_frame(), avcodec_decode_audio4(), avcodec_decode_video2(), avcodec_encode_audio2(), avcodec_encode_video2(), avcodec_open2(), avcodec_receive_frame(), avcodec_receive_packet(), avcodec_send_frame(), avcodec_send_packet(), decode_thread(), find_encdec(), open_audio(), poll_filter(), print_codec(), print_codecs(), submit_packet(), try_decode_frame(), validate_thread_parameters(), and video_decode_example().
const AVRational* AVCodec::supported_framerates |
array of supported framerates, or NULL if any, array is terminated by {0,0}
Definition at line 3140 of file avcodec.h.
Referenced by open_output_file(), and print_codec().
enum AVPixelFormat* AVCodec::pix_fmts |
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition at line 3141 of file avcodec.h.
Referenced by avcodec_open2(), ffmmal_init_decoder(), get_pixel_format(), h263_get_format(), libx265_encode_init_csp(), open_output_file(), vc1_decode_init(), and X264_init_static().
const int* AVCodec::supported_samplerates |
array of supported audio samplerates, or NULL if unknown, array is terminated by 0
Definition at line 3142 of file avcodec.h.
Referenced by add_audio_stream(), avcodec_open2(), open_output_file(), and select_sample_rate().
enum AVSampleFormat* AVCodec::sample_fmts |
array of supported sample formats, or NULL if unknown, array is terminated by -1
Definition at line 3143 of file avcodec.h.
Referenced by add_audio_stream(), avcodec_open2(), check_sample_fmt(), open_output_file(), and pcm_decode_init().
const uint64_t* AVCodec::channel_layouts |
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition at line 3144 of file avcodec.h.
Referenced by add_audio_stream(), avcodec_open2(), open_output_file(), and select_channel_layout().
attribute_deprecated uint8_t AVCodec::max_lowres |
const AVClass* AVCodec::priv_class |
AVClass for the private context.
Definition at line 3148 of file avcodec.h.
Referenced by avcodec_close(), avcodec_open2(), codec_child_class_next(), codec_child_next(), filter_codec_opts(), init_context_defaults(), and print_codec().
const AVProfile* AVCodec::profiles |
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
Definition at line 3149 of file avcodec.h.
Referenced by av_get_profile_name().
int AVCodec::priv_data_size |
Definition at line 3158 of file avcodec.h.
Referenced by avcodec_open2(), ff_frame_thread_init(), and init_context_defaults().
struct AVCodec* AVCodec::next |
Definition at line 3159 of file avcodec.h.
Referenced by av_codec_next(), avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_register(), and find_encdec().
int(* AVCodec::init_thread_copy) (AVCodecContext *) |
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 3169 of file avcodec.h.
Referenced by ff_frame_thread_init().
int(* AVCodec::update_thread_context) (AVCodecContext *dst, const AVCodecContext *src) |
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 3177 of file avcodec.h.
Referenced by ff_thread_get_buffer(), frame_worker_thread(), and update_context_from_thread().
const AVCodecDefault* AVCodec::defaults |
Private codec-specific defaults.
Definition at line 3183 of file avcodec.h.
Referenced by init_context_defaults().
Initialize codec static data, called from avcodec_register().
Definition at line 3188 of file avcodec.h.
Referenced by avcodec_register().
int(* AVCodec::init) (AVCodecContext *) |
Definition at line 3190 of file avcodec.h.
Referenced by avcodec_open2(), and ff_frame_thread_init().
int(* AVCodec::encode_sub) (AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub) |
Definition at line 3191 of file avcodec.h.
Referenced by av_codec_is_encoder(), and avcodec_encode_subtitle().
int(* AVCodec::encode2) (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr) |
Encode data to an AVPacket.
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. |
Definition at line 3203 of file avcodec.h.
Referenced by av_codec_is_encoder(), avcodec_encode_audio2(), and avcodec_encode_video2().
int(* AVCodec::decode) (AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt) |
Definition at line 3205 of file avcodec.h.
Referenced by av_codec_is_decoder(), avcodec_decode_audio4(), avcodec_decode_subtitle2(), avcodec_decode_video2(), and frame_worker_thread().
int(* AVCodec::close) (AVCodecContext *) |
Definition at line 3206 of file avcodec.h.
Referenced by avcodec_close(), avcodec_open2(), and ff_frame_thread_free().
int(* AVCodec::send_frame) (AVCodecContext *avctx, const AVFrame *frame) |
Decode/encode API with decoupled packet/frame dataflow.
The API is the same as the avcodec_ prefixed APIs (avcodec_send_frame() etc.), except that:
Definition at line 3218 of file avcodec.h.
Referenced by av_codec_is_encoder(), and avcodec_send_frame().
int(* AVCodec::send_packet) (AVCodecContext *avctx, const AVPacket *avpkt) |
Definition at line 3219 of file avcodec.h.
Referenced by av_codec_is_decoder(), and avcodec_send_packet().
int(* AVCodec::receive_frame) (AVCodecContext *avctx, AVFrame *frame) |
Definition at line 3220 of file avcodec.h.
Referenced by avcodec_receive_frame().
int(* AVCodec::receive_packet) (AVCodecContext *avctx, AVPacket *avpkt) |
Definition at line 3221 of file avcodec.h.
Referenced by avcodec_receive_packet().
void(* AVCodec::flush) (AVCodecContext *) |
Flush buffers.
Will be called when seeking
Definition at line 3226 of file avcodec.h.
Referenced by avcodec_flush_buffers(), and ff_thread_flush().
int AVCodec::caps_internal |
Internal codec capabilities.
See FF_CODEC_CAP_* in internal.h
Definition at line 3231 of file avcodec.h.
Referenced by avcodec_decode_video2(), and avcodec_open2().