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FFmpeg
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FFmpeg
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#include <avcodec.h>
Data Fields | |
| void * | priv_data |
| struct AVCodecParser * | parser |
| int64_t | frame_offset |
| int64_t | cur_offset |
| int64_t | next_frame_offset |
| int | pict_type |
| int | repeat_pict |
| This field is used for proper frame duration computation in lavf. More... | |
| int64_t | pts |
| int64_t | dts |
| int64_t | last_pts |
| int64_t | last_dts |
| int | fetch_timestamp |
| int | cur_frame_start_index |
| int64_t | cur_frame_offset [AV_PARSER_PTS_NB] |
| int64_t | cur_frame_pts [AV_PARSER_PTS_NB] |
| int64_t | cur_frame_dts [AV_PARSER_PTS_NB] |
| int | flags |
| int64_t | offset |
| byte offset from starting packet start More... | |
| int64_t | cur_frame_end [AV_PARSER_PTS_NB] |
| int | key_frame |
| Set by parser to 1 for key frames and 0 for non-key frames. More... | |
| attribute_deprecated int64_t | convergence_duration |
| int | dts_sync_point |
| Synchronization point for start of timestamp generation. More... | |
| int | dts_ref_dts_delta |
| Offset of the current timestamp against last timestamp sync point in units of AVCodecContext.time_base. More... | |
| int | pts_dts_delta |
| Presentation delay of current frame in units of AVCodecContext.time_base. More... | |
| int64_t | cur_frame_pos [AV_PARSER_PTS_NB] |
| Position of the packet in file. More... | |
| int64_t | pos |
| Byte position of currently parsed frame in stream. More... | |
| int64_t | last_pos |
| Previous frame byte position. More... | |
| int | duration |
| Duration of the current frame. More... | |
| enum AVFieldOrder | field_order |
| enum AVPictureStructure | picture_structure |
| Indicate whether a picture is coded as a frame, top field or bottom field. More... | |
| int | output_picture_number |
| Picture number incremented in presentation or output order. More... | |
| int | width |
| Dimensions of the decoded video intended for presentation. More... | |
| int | height |
| int | coded_width |
| Dimensions of the coded video. More... | |
| int | coded_height |
| int | format |
| The format of the coded data, corresponds to enum AVPixelFormat for video and for enum AVSampleFormat for audio. More... | |
| void* AVCodecParserContext::priv_data |
Definition at line 4924 of file avcodec.h.
Referenced by aac_parse_init(), ac3_parse_init(), adx_parse(), av_parser_close(), av_parser_init(), bmp_parse(), cavsvideo_parse(), cook_parse(), dca_parse(), dca_parse_init(), decode(), dirac_combine_frame(), dirac_parse(), dirac_parse_close(), dnxhd_parse(), dpx_parse(), dvbsub_parse(), dvbsub_parse_close(), dvbsub_parse_init(), dvd_nav_parse(), dvd_nav_parse_init(), dvdsub_parse(), dvdsub_parse_close(), ff_aac_ac3_parse(), ff_parse_close(), flac_parse(), flac_parse_close(), flac_parse_init(), g729_parse(), gsm_parse(), h261_parse(), h263_parse(), h264_close(), h264_parse(), hevc_find_frame_end(), hevc_parse(), hevc_parse_slice_header(), hevc_parser_close(), init(), jpeg_parse(), latm_find_frame_end(), latm_parse(), mlp_parse(), mpeg4_decode_header(), mpeg4video_parse(), mpeg4video_parse_init(), mpegaudio_parse(), mpegvideo_extract_headers(), mpegvideo_parse(), opus_find_frame_end(), opus_parse(), parse(), parse_frame(), parse_nal_units(), png_parse(), pnm_parse(), rv34_parse(), scan_mmco_reset(), tak_parse(), vc1_extract_header(), vc1_parse(), and vc1_parse_init().
| struct AVCodecParser* AVCodecParserContext::parser |
Definition at line 4925 of file avcodec.h.
Referenced by av_parser_change(), av_parser_close(), av_parser_init(), av_parser_parse2(), avformat_find_stream_info(), and remove_extradata().
| int64_t AVCodecParserContext::frame_offset |
Definition at line 4926 of file avcodec.h.
Referenced by av_parser_parse2(), ff_fetch_timestamp(), and parse_packet().
| int64_t AVCodecParserContext::cur_offset |
Definition at line 4927 of file avcodec.h.
Referenced by av_parser_parse2(), and ff_fetch_timestamp().
| int64_t AVCodecParserContext::next_frame_offset |
Definition at line 4929 of file avcodec.h.
Referenced by av_parser_parse2(), ff_fetch_timestamp(), and flac_read_timestamp().
| int AVCodecParserContext::pict_type |
Definition at line 4931 of file avcodec.h.
Referenced by av_parser_init(), compute_pkt_fields(), dirac_combine_frame(), dpx_parse(), dvd_nav_parse(), mpegvideo_extract_headers(), mpegvideo_parse(), mpegvideo_parse_init(), parse(), parse_frame(), parse_nal_units(), parse_packet(), png_parse(), rv34_parse(), scan_mmco_reset(), and vc1_extract_header().
| int AVCodecParserContext::repeat_pict |
This field is used for proper frame duration computation in lavf.
It signals, how much longer the frame duration of the current frame is compared to normal frame duration.
frame_duration = (1 + repeat_pict) * time_base
It is used by codecs like H.264 to display telecined material.
Definition at line 4941 of file avcodec.h.
Referenced by avformat_find_stream_info(), mpegvideo_extract_headers(), mpegvideo_parse(), parse_nal_units(), process_input_packet(), and vc1_extract_header().
| int64_t AVCodecParserContext::pts |
Definition at line 4942 of file avcodec.h.
Referenced by av_parser_parse2(), dirac_combine_frame(), dvbsub_parse(), dvd_nav_parse(), ff_fetch_timestamp(), flac_parse(), flac_read_timestamp(), get_best_header(), mpeg4_decode_header(), parse_frame(), parse_packet(), and rv34_parse().
| int64_t AVCodecParserContext::dts |
Definition at line 4943 of file avcodec.h.
Referenced by av_parser_parse2(), dirac_combine_frame(), ff_fetch_timestamp(), mpeg4_decode_header(), and parse_packet().
| int64_t AVCodecParserContext::last_pts |
Definition at line 4946 of file avcodec.h.
Referenced by av_parser_parse2(), dirac_combine_frame(), and dvbsub_parse().
| int64_t AVCodecParserContext::last_dts |
Definition at line 4947 of file avcodec.h.
Referenced by av_parser_parse2(), and dirac_combine_frame().
| int AVCodecParserContext::fetch_timestamp |
Definition at line 4948 of file avcodec.h.
Referenced by av_parser_init(), av_parser_parse2(), and dvbsub_parse().
| int AVCodecParserContext::cur_frame_start_index |
Definition at line 4951 of file avcodec.h.
Referenced by av_parser_parse2(), and dvbsub_parse().
| int64_t AVCodecParserContext::cur_frame_offset[AV_PARSER_PTS_NB] |
Definition at line 4952 of file avcodec.h.
Referenced by av_parser_parse2(), and ff_fetch_timestamp().
| int64_t AVCodecParserContext::cur_frame_pts[AV_PARSER_PTS_NB] |
Definition at line 4953 of file avcodec.h.
Referenced by av_parser_parse2(), dvbsub_parse(), and ff_fetch_timestamp().
| int64_t AVCodecParserContext::cur_frame_dts[AV_PARSER_PTS_NB] |
Definition at line 4954 of file avcodec.h.
Referenced by av_parser_parse2(), and ff_fetch_timestamp().
| int AVCodecParserContext::flags |
Definition at line 4956 of file avcodec.h.
Referenced by av_parser_parse2(), avformat_find_stream_info(), cavsvideo_parse(), dca_parse(), dirac_parse(), dnxhd_parse(), flac_parse(), flac_read_timestamp(), get_best_header(), h261_parse(), h263_parse(), h264_parse(), hevc_parse(), init(), jpeg_parse(), latm_parse(), mpeg4_decode_header(), mpeg4video_parse(), mpegaudio_parse(), mpegvideo_parse(), old_flac_header(), parse_packet(), read_frame_internal(), tak_parse(), and vc1_parse().
| int64_t AVCodecParserContext::offset |
byte offset from starting packet start
Definition at line 4963 of file avcodec.h.
Referenced by compute_pkt_fields(), and ff_fetch_timestamp().
| int64_t AVCodecParserContext::cur_frame_end[AV_PARSER_PTS_NB] |
Definition at line 4964 of file avcodec.h.
Referenced by av_parser_parse2(), and ff_fetch_timestamp().
| int AVCodecParserContext::key_frame |
Set by parser to 1 for key frames and 0 for non-key frames.
It is initialized to -1, so if the parser doesn't set this flag, old-style fallback using AV_PICTURE_TYPE_I picture type as key frames will be used.
Definition at line 4972 of file avcodec.h.
Referenced by av_parser_init(), parse_frame(), parse_nal_units(), parse_packet(), and tak_parse().
| attribute_deprecated int64_t AVCodecParserContext::convergence_duration |
Definition at line 4979 of file avcodec.h.
Referenced by av_parser_init(), and compute_pkt_fields().
| int AVCodecParserContext::dts_sync_point |
Synchronization point for start of timestamp generation.
Set to >0 for sync point, 0 for no sync point and <0 for undefined (default).
For example, this corresponds to presence of H.264 buffering period SEI message.
Definition at line 4992 of file avcodec.h.
Referenced by av_parser_init().
| int AVCodecParserContext::dts_ref_dts_delta |
Offset of the current timestamp against last timestamp sync point in units of AVCodecContext.time_base.
Set to INT_MIN when dts_sync_point unused. Otherwise, it must contain a valid timestamp offset.
Note that the timestamp of sync point has usually a nonzero dts_ref_dts_delta, which refers to the previous sync point. Offset of the next frame after timestamp sync point will be usually 1.
For example, this corresponds to H.264 cpb_removal_delay.
Definition at line 5007 of file avcodec.h.
Referenced by av_parser_init().
| int AVCodecParserContext::pts_dts_delta |
Presentation delay of current frame in units of AVCodecContext.time_base.
Set to INT_MIN when dts_sync_point unused. Otherwise, it must contain valid non-negative timestamp delta (presentation time of a frame must not lie in the past).
This delay represents the difference between decoding and presentation time of the frame.
For example, this corresponds to H.264 dpb_output_delay.
Definition at line 5021 of file avcodec.h.
Referenced by av_parser_init().
| int64_t AVCodecParserContext::cur_frame_pos[AV_PARSER_PTS_NB] |
Position of the packet in file.
Analogous to cur_frame_pts/dts
Definition at line 5028 of file avcodec.h.
Referenced by av_parser_parse2(), and ff_fetch_timestamp().
| int64_t AVCodecParserContext::pos |
Byte position of currently parsed frame in stream.
Definition at line 5033 of file avcodec.h.
Referenced by av_parser_parse2(), ff_fetch_timestamp(), and parse_packet().
| int64_t AVCodecParserContext::last_pos |
Previous frame byte position.
Definition at line 5038 of file avcodec.h.
Referenced by av_parser_parse2().
| int AVCodecParserContext::duration |
Duration of the current frame.
For audio, this is in units of 1 / AVCodecContext.sample_rate. For all other types, this is in units of AVCodecContext.time_base.
Definition at line 5045 of file avcodec.h.
Referenced by adx_parse(), cook_parse(), dca_parse(), dvaudio_parse(), dvd_nav_parse(), ff_aac_ac3_parse(), flac_parse(), g729_parse(), get_best_header(), gsm_parse(), mlp_parse(), mpegaudio_parse(), opus_find_frame_end(), parse_packet(), and tak_parse().
| enum AVFieldOrder AVCodecParserContext::field_order |
Definition at line 5047 of file avcodec.h.
Referenced by mpegvideo_extract_headers(), parse_nal_units(), and vc1_extract_header().
| enum AVPictureStructure AVCodecParserContext::picture_structure |
Indicate whether a picture is coded as a frame, top field or bottom field.
For example, H.264 field_pic_flag equal to 0 corresponds to AV_PICTURE_STRUCTURE_FRAME. An H.264 picture with field_pic_flag equal to 1 and bottom_field_flag equal to 0 corresponds to AV_PICTURE_STRUCTURE_TOP_FIELD.
Definition at line 5057 of file avcodec.h.
Referenced by parse_nal_units().
| int AVCodecParserContext::output_picture_number |
Picture number incremented in presentation or output order.
This field may be reinitialized at the first picture of a new sequence.
For example, this corresponds to H.264 PicOrderCnt.
Definition at line 5065 of file avcodec.h.
Referenced by parse_nal_units().
| int AVCodecParserContext::width |
Dimensions of the decoded video intended for presentation.
Definition at line 5070 of file avcodec.h.
Referenced by hevc_parse_slice_header(), mpegvideo_extract_headers(), and parse_nal_units().
| int AVCodecParserContext::height |
Definition at line 5071 of file avcodec.h.
Referenced by hevc_parse_slice_header(), mpegvideo_extract_headers(), and parse_nal_units().
| int AVCodecParserContext::coded_width |
Dimensions of the coded video.
Definition at line 5076 of file avcodec.h.
Referenced by hevc_parse_slice_header(), mpegvideo_extract_headers(), and parse_nal_units().
| int AVCodecParserContext::coded_height |
Definition at line 5077 of file avcodec.h.
Referenced by hevc_parse_slice_header(), mpegvideo_extract_headers(), and parse_nal_units().
| int AVCodecParserContext::format |
The format of the coded data, corresponds to enum AVPixelFormat for video and for enum AVSampleFormat for audio.
Note that a decoder can have considerable freedom in how exactly it decodes the data, so the format reported here might be different from the one returned by a decoder.
Definition at line 5087 of file avcodec.h.
Referenced by av_parser_init(), hevc_parse_slice_header(), mpegvideo_extract_headers(), and parse_nal_units().
1.8.6