Libav
Data Fields
AVFormatContext Struct Reference

Format I/O context. More...

#include <avformat.h>

Data Fields

const AVClassav_class
 A class for logging and AVOptions. More...
 
struct AVInputFormatiformat
 The input container format. More...
 
struct AVOutputFormatoformat
 The output container format. More...
 
voidpriv_data
 Format private data. More...
 
AVIOContextpb
 I/O context. More...
 
int ctx_flags
 Format-specific flags, see AVFMTCTX_xx. More...
 
unsigned int nb_streams
 Number of elements in AVFormatContext.streams. More...
 
AVStream ** streams
 A list of all streams in the file. More...
 
char filename [1024]
 input or output filename More...
 
int64_t start_time
 Position of the first frame of the component, in AV_TIME_BASE fractional seconds. More...
 
int64_t duration
 Duration of the stream, in AV_TIME_BASE fractional seconds. More...
 
int bit_rate
 Total stream bitrate in bit/s, 0 if not available. More...
 
unsigned int packet_size
 
int max_delay
 
int flags
 
unsigned int probesize
 Maximum size of the data read from input for determining the input container format. More...
 
int max_analyze_duration
 Maximum duration (in AV_TIME_BASE units) of the data read from input in avformat_find_stream_info(). More...
 
const uint8_tkey
 
int keylen
 
unsigned int nb_programs
 
AVProgram ** programs
 
enum AVCodecID video_codec_id
 Forced video codec_id. More...
 
enum AVCodecID audio_codec_id
 Forced audio codec_id. More...
 
enum AVCodecID subtitle_codec_id
 Forced subtitle codec_id. More...
 
unsigned int max_index_size
 Maximum amount of memory in bytes to use for the index of each stream. More...
 
unsigned int max_picture_buffer
 Maximum amount of memory in bytes to use for buffering frames obtained from realtime capture devices. More...
 
unsigned int nb_chapters
 Number of chapters in AVChapter array. More...
 
AVChapter ** chapters
 
AVDictionarymetadata
 Metadata that applies to the whole file. More...
 
int64_t start_time_realtime
 Start time of the stream in real world time, in microseconds since the Unix epoch (00:00 1st January 1970). More...
 
int fps_probe_size
 The number of frames used for determining the framerate in avformat_find_stream_info(). More...
 
int error_recognition
 Error recognition; higher values will detect more errors but may misdetect some more or less valid parts as errors. More...
 
AVIOInterruptCB interrupt_callback
 Custom interrupt callbacks for the I/O layer. More...
 
int debug
 Flags to enable debugging. More...
 
int64_t max_interleave_delta
 Maximum buffering duration for interleaving. More...
 
struct AVPacketListpacket_buffer
 This buffer is only needed when packets were already buffered but not decoded, for example to get the codec parameters in MPEG streams. More...
 
struct AVPacketListpacket_buffer_end
 
int64_t data_offset
 offset of the first packet More...
 
struct AVPacketListraw_packet_buffer
 Raw packets from the demuxer, prior to parsing and decoding. More...
 
struct AVPacketListraw_packet_buffer_end
 
struct AVPacketListparse_queue
 Packets split by the parser get queued here. More...
 
struct AVPacketListparse_queue_end
 
int raw_packet_buffer_remaining_size
 
int64_t offset
 Offset to remap timestamps to be non-negative. More...
 
AVRational offset_timebase
 Timebase for the timestamp offset. More...
 
AVFormatInternalinternal
 An opaque field for libavformat internal usage. More...
 

Detailed Description

Format I/O context.

New fields can be added to the end with minor version bumps. Removal, reordering and changes to existing fields require a major version bump. sizeof(AVFormatContext) must not be used outside libav*, use avformat_alloc_context() to create an AVFormatContext.

Definition at line 871 of file avformat.h.

Field Documentation

const AVClass* AVFormatContext::av_class

A class for logging and AVOptions.

Set by avformat_alloc_context(). Exports (de)muxer private options if they exist.

Definition at line 876 of file avformat.h.

Referenced by avformat_get_context_defaults().

struct AVInputFormat* AVFormatContext::iformat
struct AVOutputFormat* AVFormatContext::oformat
void* AVFormatContext::priv_data

Format private data.

This is an AVOptions-enabled struct if and only if iformat/oformat.priv_class is not NULL.

Definition at line 899 of file avformat.h.

Referenced by adjust_write_index(), adts_write_header(), adts_write_packet(), adx_read_header(), adx_read_packet(), aiff_read_header(), aiff_read_packet(), aiff_write_header(), aiff_write_trailer(), amf_parse_object(), ape_read_close(), ape_read_header(), ape_read_packet(), ape_read_seek(), asf_build_simple_index(), asf_get_packet(), asf_parse_packet(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_frame_header(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_packet(), asf_read_seek(), asf_read_stream_properties(), asf_reset_header(), asf_write_header(), asf_write_header1(), asf_write_markers(), asf_write_packet(), asf_write_stream_header(), asf_write_trailer(), asfrtp_parse_packet(), asfrtp_parse_sdp_line(), audio_open(), audio_read_close(), audio_read_header(), audio_read_packet(), audio_write_header(), audio_write_packet(), audio_write_trailer(), av_write_trailer(), avformat_free_context(), avformat_open_input(), avi_load_index(), avi_read_close(), avi_read_header(), avi_read_idx1(), avi_read_packet(), avi_read_seek(), avi_start_new_riff(), avi_sync(), avi_write_counters(), avi_write_header(), avi_write_idx1(), avi_write_ix(), avi_write_packet(), avi_write_trailer(), avisynth_context_create(), avisynth_create_stream(), avisynth_create_stream_audio(), avisynth_create_stream_video(), avisynth_next_stream(), avisynth_open_file(), avisynth_read_close(), avisynth_read_packet(), avisynth_read_packet_audio(), avisynth_read_packet_video(), avisynth_read_seek(), avs_read_audio_packet(), avs_read_header(), avs_read_packet(), avs_read_video_packet(), bfi_read_header(), bfi_read_packet(), bmv_read_close(), bmv_read_header(), bmv_read_packet(), build_elision_headers(), build_frame_code(), cdata_read_header(), cdata_read_packet(), cdxl_read_header(), cdxl_read_packet(), celt_header(), check_sessionid(), cin_read_header(), cin_read_packet(), compute_moov_size(), crc_write_header(), crc_write_packet(), crc_write_trailer(), dc1394_read_common(), decrypt_init(), device_init(), dirac_gptopts(), dirac_header(), dv1394_close(), dv1394_read_header(), dv1394_read_packet(), dv_init_mux(), dv_read_close(), dv_read_header(), dv_read_packet(), dv_read_seek(), dv_write_packet(), dv_write_trailer(), dxa_read_header(), dxa_read_packet(), ea_read_header(), ea_read_packet(), efi_read(), enable_tracks(), fbdev_read_close(), fbdev_read_header(), fbdev_read_packet(), ff_alsa_close(), ff_alsa_open(), ff_alsa_xrun_recover(), ff_mov_add_hinted_packet(), ff_mov_init_hinting(), ff_mov_write_packet(), ff_raw_video_read_header(), ff_rm_parse_packet(), ff_rm_retrieve_cache(), ff_rtp_get_payload_type(), ff_rtp_send_aac(), ff_rtp_send_amr(), ff_rtp_send_data(), ff_rtp_send_h263(), ff_rtp_send_h263_rfc2190(), ff_rtp_send_h264(), ff_rtp_send_jpeg(), ff_rtp_send_latm(), ff_rtp_send_mpegvideo(), ff_rtp_send_vp8(), ff_rtp_send_xiph(), ff_rtsp_close_streams(), ff_rtsp_open_transport_ctx(), ff_rtsp_parse_streaming_commands(), ff_rtsp_setup_input_streams(), ff_rtsp_setup_output_streams(), ff_rtsp_tcp_read_packet(), ff_rtsp_tcp_write_packet(), ff_rtsp_undo_setup(), ff_sndio_open(), ff_voc_get_packet(), ff_wms_parse_sdp_a_line(), ffm_is_avail_data(), ffm_read_data(), ffm_read_header(), ffm_read_packet(), ffm_seek(), ffm_seek1(), ffm_set_write_index(), ffm_write_data(), ffm_write_header(), ffm_write_trailer(), film_read_close(), film_read_header(), film_read_packet(), find_header_idx(), flac_header(), flac_write_header(), flac_write_trailer(), flic_read_header(), flic_read_packet(), flush_packet(), flv_read_close(), flv_read_packet(), flv_read_seek(), flv_write_header(), flv_write_packet(), flv_write_trailer(), format_child_next(), fourxm_read_close(), fourxm_read_header(), fourxm_read_packet(), get_aiff_header(), get_moov_size(), get_packet_header(), get_riff(), get_system_header_size(), get_vcd_padding_size(), gif_write_header(), grab_read_close(), grab_read_header(), grab_read_packet(), gsm_read_header(), gxf_compare_field_nb(), gxf_header(), gxf_packet(), gxf_write_flt_packet(), gxf_write_header(), gxf_write_map_packet(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_packet(), gxf_write_track_description_section(), gxf_write_trailer(), gxf_write_umf_material_description(), gxf_write_umf_media_description(), gxf_write_umf_packet(), gxf_write_umf_payload(), gxf_write_umf_track_description(), hds_flush(), hds_free(), hds_write_header(), hds_write_packet(), hds_write_trailer(), hls_close(), hls_mux_init(), hls_read_header(), hls_read_packet(), hls_read_seek(), hls_start(), hls_window(), hls_write_header(), hls_write_packet(), hls_write_trailer(), hnm_read_close(), hnm_read_header(), hnm_read_packet(), idcin_read_header(), idcin_read_packet(), idcin_read_seek(), iff_read_header(), iff_read_packet(), img_read_header(), img_read_packet(), init_muxer(), ipmovie_read_header(), ipmovie_read_packet(), ism_flush(), ism_free(), ism_write_header(), ism_write_packet(), ism_write_trailer(), iss_read_header(), iss_read_packet(), kset(), latm_write_frame_header(), latm_write_header(), lxf_read_header(), lxf_read_packet(), matroska_convert_tags(), matroska_read_close(), matroska_read_header(), matroska_read_packet(), matroska_read_seek(), md5_finish(), mkv_flush_dynbuf(), mkv_write_ass_blocks(), mkv_write_attachments(), mkv_write_block(), mkv_write_chapters(), mkv_write_flush_packet(), mkv_write_header(), mkv_write_packet(), mkv_write_packet_internal(), mkv_write_tag(), mkv_write_tracks(), mkv_write_trailer(), mmap_init(), mmap_read_frame(), mmap_start(), mmf_read_header(), mmf_read_packet(), mov_create_chapter_track(), mov_flush_fragment(), mov_free(), mov_read_chapters(), mov_read_close(), mov_read_header(), mov_read_packet(), mov_write_ftyp_tag(), mov_write_header(), mov_write_packet(), mov_write_trailer(), mp3_queue_flush(), mp3_seek(), mp3_update_xing(), mp3_write_audio_packet(), mp3_write_trailer(), mp3_write_xing(), mpc8_parse_seektable(), mpc8_read_header(), mpc8_read_packet(), mpc_read_close(), mpc_read_header(), mpc_read_packet(), mpc_read_seek(), mpeg_mux_init(), mpeg_mux_write_packet(), mpegps_read_header(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_insert_pcr_only(), mpegts_raw_read_packet(), mpegts_read_close(), mpegts_read_header(), mpegts_read_packet(), mpegts_write_end(), mpegts_write_header(), mpegts_write_packet_internal(), mpegts_write_pat(), mpegts_write_pes(), mpegts_write_pmt(), mpegts_write_sdt(), mtv_read_header(), mtv_read_packet(), mxf_decrypt_triplet(), mxf_gen_umid(), mxf_handle_small_eubc(), mxf_parse_mpeg2_frame(), mxf_read_close(), mxf_read_header(), mxf_read_packet(), mxf_read_packet_old(), mxf_read_seek(), mxf_write_common_fields(), mxf_write_d10_audio_packet(), mxf_write_d10_video_packet(), mxf_write_essence_container_refs(), mxf_write_footer(), mxf_write_generic_desc(), mxf_write_header(), mxf_write_identification(), mxf_write_index_table_segment(), mxf_write_multi_descriptor(), mxf_write_package(), mxf_write_packet(), mxf_write_partition(), mxf_write_preface(), mxf_write_random_index_pack(), mxf_write_sequence(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_track(), mxf_write_umid(), mxg_close(), mxg_read_header(), mxg_read_packet(), mxg_update_cache(), nal_send(), nprobe(), nsv_parse_NSVf_header(), nsv_parse_NSVs_header(), nsv_read_chunk(), nsv_read_close(), nsv_read_header(), nsv_read_packet(), nsv_read_seek(), nsv_resync(), nut_read_close(), nut_read_header(), nut_read_packet(), nut_read_timestamp(), nut_write_header(), nut_write_packet(), nut_write_trailer(), nuv_header(), nuv_packet(), ogg_buffer_data(), ogg_buffer_page(), ogg_calc_pts(), ogg_get_headers(), ogg_get_length(), ogg_gptopts(), ogg_new_stream(), ogg_packet(), ogg_read_close(), ogg_read_header(), ogg_read_packet(), ogg_read_page(), ogg_read_seek(), ogg_read_timestamp(), ogg_restore(), ogg_save(), ogg_write_header(), ogg_write_pages(), ogm_dshow_header(), ogm_header(), ogm_packet(), old_dirac_gptopts(), old_dirac_header(), oma_read_header(), oma_read_packet(), oma_read_seek(), opus_header(), opus_packet(), output_packet(), parse_chunks(), parse_command_line(), parse_keyframes_index(), parse_media_type(), parse_videoinfoheader2(), pcm_read_header(), pmp_close(), pmp_header(), pmp_packet(), pmp_seek(), process_audio_header_eacs(), process_audio_header_elements(), process_audio_header_sead(), process_ea_header(), process_video_header_cmv(), process_video_header_mdec(), process_video_header_vp6(), pulse_close(), pulse_read_header(), pulse_read_packet(), put_chunk(), put_frame(), put_pack_header(), put_padding_packet(), put_payload_header(), put_payload_parsing_info(), put_swf_end_tag(), put_swf_tag(), put_system_header(), put_vcd_padding_sector(), pva_read_timestamp(), qcp_read_header(), qcp_read_packet(), r3d_close(), r3d_read_header(), r3d_read_rdvo(), r3d_read_reos(), r3d_seek(), raw_read_packet(), rawvideo_read_header(), read_braindead_odml_indx(), read_close(), read_data(), read_desc_chunk(), read_header(), read_line(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_seek(), read_seek2(), read_xing_toc(), recheck_discard_flags(), resetup_tcp(), retransmit_si_info(), rl2_read_packet(), rl2_read_seek(), rm_read_dts(), rm_read_header(), rm_read_header_old(), rm_read_packet(), rm_write_audio(), rm_write_header(), rm_write_trailer(), rm_write_video(), roq_read_header(), roq_read_packet(), rpl_read_header(), rpl_read_packet(), rprobe(), rtcp_send_sr(), rtp_send_ilbc(), rtp_send_mpegaudio(), rtp_send_mpegts_raw(), rtp_send_raw(), rtp_send_samples(), rtp_write_header(), rtp_write_packet(), rtp_write_trailer(), rtsp_listen(), rtsp_read_announce(), rtsp_read_close(), rtsp_read_header(), rtsp_read_options(), rtsp_read_packet(), rtsp_read_pause(), rtsp_read_play(), rtsp_read_record(), rtsp_read_request(), rtsp_read_seek(), rtsp_read_setup(), rtsp_send_reply(), rtsp_write_close(), rtsp_write_packet(), rtsp_write_record(), rv10_write_header(), sap_fetch_packet(), sap_read_close(), sap_read_header(), sap_write_close(), sap_write_header(), sap_write_packet(), seg_write_header(), seg_write_packet(), seg_write_trailer(), segment_hls_window(), segment_mux_init(), segment_start(), send_mode_a(), send_mode_b(), seq_read_close(), seq_read_header(), seq_read_packet(), shall_we_drop(), shift_data(), siff_read_header(), siff_read_packet(), skeleton_header(), smacker_read_close(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), smjpeg_read_packet(), smjpeg_write_packet(), smjpeg_write_trailer(), sox_write_header(), sox_write_trailer(), spdif_header_aac(), spdif_header_ac3(), spdif_header_dts(), spdif_header_dts4(), spdif_header_eac3(), spdif_header_mpeg(), spdif_header_truehd(), spdif_write_header(), spdif_write_packet(), spdif_write_trailer(), speex_header(), speex_packet(), start_jack(), str_read_close(), str_read_header(), str_read_packet(), swf_read_header(), swf_read_packet(), swf_write_audio(), swf_write_header(), swf_write_trailer(), swf_write_video(), sync(), tak_read_header(), theora_gptopts(), theora_header(), thp_read_header(), thp_read_packet(), tmv_read_header(), tmv_read_packet(), tmv_read_seek(), tta_read_header(), tta_read_packet(), tta_read_seek(), v4l2_read_close(), v4l2_read_header(), v4l2_read_packet(), v4l2_set_parameters(), vc1test_write_packet(), vc1test_write_trailer(), vfw_read_close(), vfw_read_header(), vfw_read_packet(), vid_read_close(), vid_read_header(), vid_read_packet(), videostream_cb(), vmd_read_close(), vmd_read_header(), vmd_read_packet(), voc_read_header(), voc_write_packet(), vorbis_cleanup(), vorbis_header(), vorbis_packet(), vqf_read_header(), vqf_read_packet(), vqf_read_seek(), wav_write_header(), wav_write_packet(), wav_write_trailer(), wc3_read_close(), wc3_read_header(), wc3_read_packet(), write_abst(), write_header(), write_headers(), write_manifest(), write_packet(), write_streamheader(), write_trailer(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_block_header(), wv_read_header(), wv_read_packet(), wv_read_seek(), wv_write_packet(), wv_write_trailer(), x11grab_read_close(), x11grab_read_header(), x11grab_read_packet(), xa_read_header(), xa_read_packet(), xmv_fetch_audio_packet(), xmv_fetch_new_packet(), xmv_fetch_video_packet(), xmv_process_packet_header(), xmv_read_close(), xmv_read_header(), xmv_read_packet(), xwma_read_header(), xwma_read_packet(), yop_read_close(), yop_read_header(), yop_read_packet(), yop_read_seek(), yuv4_read_header(), and yuv4_read_packet().

AVIOContext* AVFormatContext::pb

I/O context.

Do NOT set this field if AVFMT_NOFILE flag is set in iformat/oformat.flags. In such a case, the (de)muxer will handle I/O in some other way and this field will be NULL.

Definition at line 913 of file avformat.h.

Referenced by a64_write_header(), add_metadata(), adjust_write_index(), adts_write_packet(), adx_read_header(), adx_read_packet(), aea_read_header(), aea_read_packet(), aiff_read_header(), aiff_read_packet(), aiff_write_header(), aiff_write_packet(), aiff_write_trailer(), amf_parse_object(), amr_read_header(), amr_read_packet(), apc_read_header(), apc_read_packet(), ape_read_header(), ape_read_packet(), ape_read_seek(), ape_tag_read_field(), asf_build_simple_index(), asf_read_content_desc(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_packet(), asf_read_picture(), asf_read_pts(), asf_read_seek(), asf_read_stream_properties(), asf_write_header(), asf_write_header1(), asf_write_index(), asf_write_markers(), asf_write_packet(), asf_write_trailer(), asfrtp_parse_packet(), av_read_pause(), av_read_play(), av_write_trailer(), avconv_cleanup(), avformat_close_input(), avformat_find_stream_info(), avformat_open_input(), avi_load_index(), avi_read_close(), avi_read_header(), avi_read_idx1(), avi_read_nikon(), avi_read_packet(), avi_read_seek(), avi_read_tag(), avi_sync(), avi_write_counters(), avi_write_header(), avi_write_idx1(), avi_write_ix(), avi_write_packet(), avi_write_trailer(), avs_read_audio_packet(), avs_read_header(), avs_read_packet(), avs_read_video_packet(), bfi_read_header(), bfi_read_packet(), bmv_read_packet(), bwf_write_bext_chunk(), bwf_write_bext_string(), cdata_read_header(), cdata_read_packet(), cdxl_read_packet(), cin_read_header(), cin_read_packet(), close_connection(), compute_partition_essence_offset(), crc_write_trailer(), daud_packet(), daud_write_packet(), decode_frame(), decode_frame_header(), decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), decode_thread(), dfa_read_header(), dfa_read_packet(), dv_frame_offset(), dv_read_header(), dv_read_packet(), dv_read_seek(), dv_write_packet(), dxa_read_header(), dxa_read_packet(), ea_read_packet(), ebml_level_end(), ebml_parse(), ebml_parse_elem(), ebml_read_master(), efi_read(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), event_loop(), ff_ape_parse_tag(), ff_ape_write_tag(), ff_framehash_write_header(), ff_gen_search(), ff_gen_syncpoint_search(), ff_id3v1_read(), ff_id3v2_read(), ff_id3v2_write_apic(), ff_id3v2_write_metadata(), ff_id3v2_write_simple(), ff_mov_add_hinted_packet(), ff_mov_close_hinting(), ff_mov_write_packet(), ff_pcm_read_seek(), ff_raw_read_partial_packet(), ff_raw_write_packet(), ff_read_riff_info(), ff_restore_parser_state(), ff_riff_write_info(), ff_rtp_chain_mux_open(), ff_rtp_send_data(), ff_rtsp_tcp_write_packet(), ff_rtsp_undo_setup(), ff_sauce_read(), ff_seek_frame_binary(), ff_store_parser_state(), ff_voc_get_packet(), ff_wms_parse_sdp_a_line(), ffm_is_avail_data(), ffm_read_data(), ffm_read_header(), ffm_read_packet(), ffm_resync(), ffm_seek1(), ffm_write_header(), film_read_header(), film_read_packet(), find_and_decode_index(), finished_reading_packet(), flac_read_header(), flac_write_header(), flac_write_packet(), flac_write_trailer(), flic_read_header(), flic_read_packet(), flush_packet(), flv_data_packet(), flv_get_extradata(), flv_read_header(), flv_read_metabody(), flv_read_packet(), flv_read_seek(), flv_set_video_codec(), flv_write_header(), flv_write_packet(), flv_write_trailer(), format_child_next(), fourxm_read_header(), fourxm_read_packet(), framecrc_write_packet(), free_variant_list(), g723_1_read_packet(), get_aiff_header(), get_dts(), get_meta(), get_metadata(), get_packet_header(), get_tag(), gif_write_header(), gif_write_trailer(), gif_write_video(), gsm_read_packet(), guess_ni_flag(), gxf_header(), gxf_packet(), gxf_read_index(), gxf_read_timestamp(), gxf_resync_media(), gxf_seek(), gxf_write_flt_packet(), gxf_write_header(), gxf_write_map_packet(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_packet(), gxf_write_track_description(), gxf_write_track_description_section(), gxf_write_trailer(), gxf_write_umf_material_description(), gxf_write_umf_media_description(), gxf_write_umf_packet(), gxf_write_umf_payload(), gxf_write_umf_track_description(), handle_packet(), handle_packets(), hds_flush(), hds_free(), hds_write_header(), hls_read_header(), hls_start(), hls_write_packet(), hls_write_trailer(), hnm_read_header(), hnm_read_packet(), http_prepare_data(), http_receive_data(), id3v2_parse(), idcin_read_header(), idcin_read_packet(), idcin_read_seek(), iff_read_header(), iff_read_packet(), ilbc_read_header(), ilbc_read_packet(), ilbc_write_header(), ilbc_write_packet(), img_read_packet(), ingenient_read_packet(), init_input(), ipmovie_read_header(), ipmovie_read_packet(), ism_flush(), ism_free(), ism_write_header(), iss_read_header(), iss_read_packet(), ivf_write_header(), ivf_write_packet(), latm_write_packet(), lmlm4_read_packet(), lxf_read_header(), lxf_read_packet(), main(), matroska_execute_seekhead(), matroska_parse_cluster(), matroska_parse_cluster_incremental(), matroska_parse_seekhead_entry(), matroska_read_header(), matroska_read_packet(), matroska_read_seek(), matroska_resync(), md5_finish(), mkv_flush_dynbuf(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_flush_packet(), mkv_write_header(), mkv_write_packet(), mkv_write_packet_internal(), mkv_write_tag(), mkv_write_tags(), mkv_write_tracks(), mkv_write_trailer(), mmf_read_header(), mmf_read_packet(), mov_find_next_sample(), mov_flush_fragment(), mov_read_close(), mov_read_header(), mov_read_packet(), mov_read_trak(), mov_write_header(), mov_write_trailer(), mp3_parse_vbr_tags(), mp3_queue_flush(), mp3_read_header(), mp3_read_packet(), mp3_seek(), mp3_update_xing(), mp3_write_trailer(), mp3_write_xing(), mpc8_handle_chunk(), mpc8_parse_seektable(), mpc8_read_header(), mpc8_read_packet(), mpc8_read_seek(), mpc_read_header(), mpc_read_packet(), mpegps_read_dts(), mpegps_read_header(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_insert_null_packet(), mpegts_insert_pcr_only(), mpegts_raw_read_packet(), mpegts_read_header(), mpegts_resync(), mpegts_write_flush(), mpegts_write_header(), mpegts_write_packet_internal(), mpegts_write_pes(), mpjpeg_write_header(), mpjpeg_write_packet(), msnwc_tcp_read_header(), msnwc_tcp_read_packet(), mtv_read_header(), mtv_read_packet(), mxf_decrypt_triplet(), mxf_parse_handle_essence(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet(), mxf_read_packet_old(), mxf_read_seek(), mxf_seek_to_previous_partition(), mxf_write_cdci_common(), mxf_write_common_fields(), mxf_write_content_storage(), mxf_write_d10_audio_packet(), mxf_write_d10_video_packet(), mxf_write_essence_container_data(), mxf_write_essence_container_refs(), mxf_write_footer(), mxf_write_generic_desc(), mxf_write_generic_sound_common(), mxf_write_identification(), mxf_write_index_table_segment(), mxf_write_klv_fill(), mxf_write_mpegvideo_desc(), mxf_write_multi_descriptor(), mxf_write_package(), mxf_write_packet(), mxf_write_partition(), mxf_write_preface(), mxf_write_primer_pack(), mxf_write_random_index_pack(), mxf_write_sequence(), mxf_write_structural_component(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_track(), mxf_write_umid(), mxf_write_wav_common(), mxg_read_packet(), mxg_update_cache(), nc_read_packet(), need_output(), nsv_parse_NSVf_header(), nsv_parse_NSVs_header(), nsv_read_chunk(), nsv_read_seek(), nsv_resync(), nut_read_header(), nut_read_packet(), nut_read_timestamp(), nut_write_header(), nut_write_packet(), nut_write_trailer(), nuv_header(), nuv_packet(), ogg_get_length(), ogg_read_page(), ogg_read_timestamp(), ogg_restore(), ogg_save(), ogg_write_page(), oma_read_header(), oma_read_packet(), oma_read_seek(), oma_write_header(), open_output_file(), pcm_read_packet(), pmp_header(), pmp_packet(), print_report(), process_audio_header_eacs(), process_audio_header_elements(), process_audio_header_sead(), process_ea_header(), process_video_header_cmv(), process_video_header_mdec(), process_video_header_vp6(), put_chunk(), put_payload_parsing_info(), put_swf_end_tag(), put_swf_tag(), put_vcd_padding_sector(), pva_read_packet(), pva_read_timestamp(), qcp_read_header(), qcp_read_packet(), r3d_read_header(), r3d_read_packet(), r3d_read_rdvo(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), r3d_read_reos(), raw_read_packet(), rawvideo_read_packet(), rdt_parse_packet(), read_atom(), read_braindead_odml_indx(), read_chapter(), read_desc_chunk(), read_gab2_sub(), read_header(), read_info_chunk(), read_kuki_chunk(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_seek(), read_xing_toc(), rl2_read_header(), rl2_read_packet(), rm_read_dts(), rm_read_header(), rm_read_header_old(), rm_read_index(), rm_read_packet(), rm_write_audio(), rm_write_header(), rm_write_trailer(), rm_write_video(), roq_read_header(), roq_read_packet(), roq_write_header(), rpl_read_header(), rpl_read_packet(), rso_read_header(), rso_read_packet(), rso_write_header(), rso_write_packet(), rso_write_trailer(), rtp_new_av_stream(), rtp_write_header(), rtp_write_trailer(), rv10_write_header(), sap_read_header(), sap_write_close(), section_write_packet(), seek_frame_byte(), seek_frame_generic(), seg_write_header(), seg_write_trailer(), segment_end(), segment_start(), seq_read_header(), seq_read_packet(), shift_data(), show_format(), siff_read_header(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), smjpeg_read_packet(), smjpeg_write_header(), smjpeg_write_packet(), smjpeg_write_trailer(), sol_read_header(), sol_read_packet(), sox_read_header(), sox_read_packet(), sox_write_header(), sox_write_packet(), sox_write_trailer(), spdif_read_packet(), spdif_write_packet(), srt_read_packet(), str_read_header(), str_read_packet(), swf_read_header(), swf_read_packet(), swf_write_header(), swf_write_trailer(), swf_write_video(), sync(), tak_read_header(), thp_read_header(), thp_read_packet(), tmv_read_header(), tmv_read_packet(), tmv_read_seek(), tta_read_header(), tta_read_packet(), tta_read_seek(), txd_read_packet(), update_stream_timings(), vc1t_read_header(), vc1t_read_packet(), vc1test_write_header(), vc1test_write_packet(), vc1test_write_trailer(), vid_read_header(), vid_read_packet(), vmd_read_header(), vmd_read_packet(), voc_read_header(), voc_write_header(), voc_write_packet(), voc_write_trailer(), vqf_read_header(), vqf_read_packet(), vqf_read_seek(), wav_write_header(), wav_write_packet(), wav_write_trailer(), wc3_read_header(), wc3_read_packet(), write_header(), write_packet(), write_packet_header(), write_trailer(), wsaud_read_header(), wsaud_read_packet(), wsvqa_read_header(), wsvqa_read_packet(), wtvfile_open_sector(), wv_read_header(), wv_read_packet(), wv_read_seek(), wv_write_packet(), wv_write_trailer(), xa_read_header(), xa_read_packet(), xmv_fetch_audio_packet(), xmv_fetch_new_packet(), xmv_fetch_video_packet(), xmv_process_packet_header(), xmv_read_header(), xwma_read_header(), xwma_read_packet(), yop_read_header(), yop_read_packet(), yop_read_seek(), yuv4_read_header(), and yuv4_read_packet().

int AVFormatContext::ctx_flags
unsigned int AVFormatContext::nb_streams

Number of elements in AVFormatContext.streams.

Set by avformat_new_stream(), must not be modified by any other code.

Definition at line 923 of file avformat.h.

Referenced by add_input_streams(), asf_read_pts(), asf_read_stream_properties(), asf_reset_header(), asf_write_header1(), asfrtp_parse_packet(), asfrtp_parse_sdp_line(), av_dump_format(), av_find_best_stream(), av_find_default_stream_index(), av_write_trailer(), avformat_find_stream_info(), avformat_free_context(), avformat_new_stream(), avi_read_close(), avi_read_header(), avi_read_idx1(), avi_read_packet(), avi_read_seek(), avi_start_new_riff(), avi_sync(), avi_write_counters(), avi_write_header(), avi_write_idx1(), avi_write_ix(), avi_write_trailer(), avisynth_next_stream(), build_feed_streams(), build_file_streams(), build_frame_code(), check_packet(), check_stream_max_drift(), check_stream_specifier(), clean_index(), clear_index_entries(), close_connection(), close_input_file(), copy_metadata(), decode_info_header(), decode_syncpoint(), decode_thread(), dv_init_mux(), enable_tracks(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), extract_mpeg4_header(), ff_audio_interleave_close(), ff_audio_interleave_init(), ff_audio_rechunk_interleave(), ff_find_stream_index(), ff_framehash_write_header(), ff_gen_syncpoint_search(), ff_interleave_packet_per_dts(), ff_metadata_conv_ctx(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_nut_reset_ts(), ff_program_add_stream_index(), ff_rdt_parse_open(), ff_read_frame_flush(), ff_read_packet(), ff_rtsp_setup_output_streams(), ff_store_parser_state(), ff_update_cur_dts(), ffm_close(), ffm_read_packet(), ffm_write_header(), fill_all_stream_timings(), film_read_header(), finalize_packet(), find_and_decode_index(), flv_data_packet(), flv_read_metabody(), flv_read_packet(), flv_write_header(), flv_write_trailer(), get_packet_header(), get_sindex(), get_subtitle_pkt(), get_system_header_size(), gif_write_header(), guess_ni_flag(), gxf_header(), gxf_write_header(), gxf_write_track_description_section(), gxf_write_umf_media_description(), gxf_write_umf_payload(), gxf_write_umf_track_description(), handle_file(), has_duration(), hds_free(), hds_write_header(), hls_mux_init(), hls_read_header(), hls_write_header(), http_prepare_data(), http_receive_data(), ilbc_write_header(), init_input_filter(), init_muxer(), init_pts(), ism_flush(), ism_free(), ism_write_header(), ivf_write_header(), lxf_read_packet(), main(), mkv_write_attachments(), mkv_write_header(), mkv_write_tags(), mkv_write_tracks(), mkv_write_trailer(), mov_find_next_sample(), mov_read_chan(), mov_read_chapters(), mov_read_close(), mov_read_ctts(), mov_read_dac3(), mov_read_dec3(), mov_read_dref(), mov_read_dvc1(), mov_read_elst(), mov_read_enda(), mov_read_extradata(), mov_read_fiel(), mov_read_glbl(), mov_read_hdlr(), mov_read_header(), mov_read_mdhd(), mov_read_pasp(), mov_read_sbgp(), mov_read_seek(), mov_read_smi(), mov_read_stco(), mov_read_stps(), mov_read_strf(), mov_read_stsc(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tkhd(), mov_read_trak(), mov_read_trun(), mov_read_wave(), mov_read_wfex(), mov_write_ftyp_tag(), mov_write_header(), mov_write_moov_tag(), mov_write_udta_tag(), mpc8_parse_seektable(), mpeg_mux_end(), mpeg_mux_init(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_write_end(), mpegts_write_flush(), mpegts_write_header(), mpegts_write_pmt(), mxf_compute_index_tables(), mxf_free(), mxf_get_stream_index(), mxf_handle_small_eubc(), mxf_interleave_get_packet(), mxf_read_close(), mxf_write_header(), mxf_write_index_table_segment(), mxf_write_multi_descriptor(), mxf_write_package(), mxf_write_partition(), need_output(), new_output_stream(), nsv_parse_NSVs_header(), nsv_read_chunk(), nsv_read_close(), nsv_read_header(), nut_read_header(), nut_write_header(), nut_write_packet(), ogg_write_header(), ogg_write_trailer(), open_input_file(), open_output_file(), output_packet(), pmt_cb(), poll_filters(), prepare_sdp_description(), probe_file(), put_system_header(), qt_rtp_parse_packet(), queue_attached_pictures(), r3d_read_packet(), rdt_parse_sdp_line(), read_braindead_odml_indx(), read_data(), read_frame_internal(), read_header(), read_seek(), recheck_discard_flags(), remove_decoded_packets(), rl2_read_packet(), rl2_read_seek(), rm_read_close(), rm_read_index(), rm_write_header(), rm_write_trailer(), rpl_read_packet(), rtp_new_av_stream(), rtp_write_header(), rtsp_read_header(), rtsp_read_packet(), rv10_write_header(), sap_fetch_packet(), sap_read_header(), sap_write_close(), sap_write_header(), search_hi_lo_keyframes(), seg_write_header(), segment_mux_init(), set_disposition_bits(), setup_find_stream_info_opts(), show_format(), smjpeg_write_header(), spdif_read_packet(), stream_component_close(), stream_component_open(), stream_cycle_channel(), swf_read_packet(), swf_write_header(), swf_write_trailer(), sync(), transcode_init(), update_stream_timings(), voc_write_header(), write_header(), write_headers(), write_mainheader(), write_manifest(), write_trailer(), wv_write_header(), and xmv_process_packet_header().

AVStream** AVFormatContext::streams

A list of all streams in the file.

New streams are created with avformat_new_stream().

Freed by libavformat in avformat_free_context().

Definition at line 935 of file avformat.h.

Referenced by a64_write_header(), add_input_streams(), adts_write_header(), adx_read_header(), adx_read_packet(), aea_read_packet(), aiff_read_packet(), aiff_write_header(), aiff_write_trailer(), amr_parse_sdp_line(), amr_read_packet(), ape_read_seek(), asf_build_simple_index(), asf_parse_packet(), asf_read_header(), asf_read_pts(), asf_read_seek(), asf_reset_header(), asf_write_header1(), asf_write_packet(), asfrtp_parse_packet(), asfrtp_parse_sdp_line(), audio_read_packet(), audio_write_header(), av_find_best_stream(), av_find_default_stream_index(), av_interleaved_write_frame(), av_read_frame(), av_write_frame(), av_write_trailer(), avformat_find_stream_info(), avformat_free_context(), avformat_new_stream(), avi_read_close(), avi_read_header(), avi_read_idx1(), avi_read_packet(), avi_read_seek(), avi_start_new_riff(), avi_sync(), avi_write_counters(), avi_write_header(), avi_write_idx1(), avi_write_ix(), avi_write_packet(), avi_write_trailer(), avisynth_next_stream(), avisynth_read_seek(), build_feed_streams(), build_file_streams(), build_frame_code(), celt_header(), check_packet(), check_stream_max_drift(), check_stream_specifier(), clean_index(), clear_index_entries(), close_connection(), close_input_file(), config_output_props(), copy_metadata(), daud_write_header(), decode_frame(), decode_info_header(), decode_stream_header(), decode_thread(), dirac_header(), dump_stream_format(), dv_init_mux(), dv_write_packet(), enable_tracks(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), extract_mpeg4_header(), ff_alsa_open(), ff_audio_interleave_close(), ff_audio_interleave_init(), ff_audio_rechunk_interleave(), ff_find_stream_index(), ff_framehash_write_header(), ff_gen_syncpoint_search(), ff_id3v2_write_apic(), ff_interleave_add_packet(), ff_interleave_packet_per_dts(), ff_metadata_conv_ctx(), ff_mov_init_hinting(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_pcm_read_seek(), ff_rdt_parse_open(), ff_read_frame_flush(), ff_read_packet(), ff_real_parse_sdp_a_line(), ff_reduce_index(), ff_restore_parser_state(), ff_rtp_chain_mux_open(), ff_rtp_send_aac(), ff_rtp_send_jpeg(), ff_rtp_send_latm(), ff_rtsp_open_transport_ctx(), ff_sauce_read(), ff_seek_frame_binary(), ff_store_parser_state(), ff_update_cur_dts(), ff_write_chained(), ffm_close(), ffm_write_header(), fill_all_stream_timings(), film_read_header(), find_and_decode_index(), flac_header(), flac_write_header(), flac_write_trailer(), flush_packet(), flv_data_packet(), flv_read_metabody(), flv_read_packet(), flv_write_header(), flv_write_packet(), flv_write_trailer(), get_aiff_header(), get_packet_header(), get_private_data(), get_subtitle_pkt(), get_system_header_size(), gif_write_header(), gif_write_packet(), guess_ni_flag(), gxf_compare_field_nb(), gxf_header(), gxf_interleave_packet(), gxf_packet(), gxf_read_index(), gxf_seek(), gxf_write_header(), gxf_write_media_preamble(), gxf_write_packet(), gxf_write_track_description(), gxf_write_track_description_section(), gxf_write_umf_media_description(), gxf_write_umf_track_description(), h263_init(), h264_init(), handle_file(), has_duration(), hds_flush(), hds_write_header(), hds_write_packet(), hls_mux_init(), hls_read_header(), hls_read_packet(), hls_read_seek(), hls_write_header(), hls_write_packet(), http_prepare_data(), http_receive_data(), idcin_read_seek(), ilbc_parse_sdp_line(), ilbc_read_packet(), ilbc_write_header(), img_read_packet(), init_input_filter(), init_muxer(), init_pts(), init_video(), interleave_compare_dts(), interleave_new_audio_packet(), ism_write_header(), ism_write_packet(), iss_read_packet(), ivf_write_header(), latm_parse_sdp_line(), latm_write_frame_header(), latm_write_header(), main(), matroska_read_seek(), mkv_write_ass_blocks(), mkv_write_attachments(), mkv_write_block(), mkv_write_header(), mkv_write_packet(), mkv_write_packet_internal(), mkv_write_tags(), mkv_write_tracks(), mov_find_next_sample(), mov_read_chan(), mov_read_chapters(), mov_read_close(), mov_read_ctts(), mov_read_dac3(), mov_read_dec3(), mov_read_dref(), mov_read_dvc1(), mov_read_elst(), mov_read_enda(), mov_read_extradata(), mov_read_fiel(), mov_read_glbl(), mov_read_hdlr(), mov_read_header(), mov_read_mdhd(), mov_read_pasp(), mov_read_sbgp(), mov_read_seek(), mov_read_smi(), mov_read_stco(), mov_read_stps(), mov_read_strf(), mov_read_stsc(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tkhd(), mov_read_trun(), mov_read_wave(), mov_read_wfex(), mov_write_ftyp_tag(), mov_write_header(), mov_write_moov_tag(), mov_write_packet(), mov_write_udta_sdp(), mov_write_uuidprof_tag(), movie_get_frame(), movie_init(), mp3_seek(), mp3_write_xing(), mpc8_parse_seektable(), mpc8_read_seek(), mpc_read_packet(), mpc_read_seek(), mpeg_init(), mpeg_mux_end(), mpeg_mux_init(), mpeg_mux_write_packet(), mpegps_read_dts(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_write_end(), mpegts_write_flush(), mpegts_write_header(), mpegts_write_packet_internal(), mpegts_write_pmt(), mxf_compare_timestamps(), mxf_compute_index_tables(), mxf_free(), mxf_get_stream_index(), mxf_handle_small_eubc(), mxf_interleave_get_packet(), mxf_read_close(), mxf_read_packet(), mxf_read_packet_old(), mxf_read_seek(), mxf_write_essence_container_refs(), mxf_write_header(), mxf_write_identification(), mxf_write_index_table_segment(), mxf_write_multi_descriptor(), mxf_write_package(), mxf_write_packet(), mxf_write_system_item(), nsv_read_chunk(), nsv_read_close(), nsv_read_seek(), nut_write_header(), nut_write_packet(), ogg_buffer_data(), ogg_compare_granule(), ogg_get_headers(), ogg_get_length(), ogg_read_seek(), ogg_write_header(), ogg_write_packet(), ogg_write_page(), ogg_write_pages(), ogg_write_trailer(), ogm_dshow_header(), ogm_header(), old_dirac_header(), old_flac_header(), oma_read_packet(), oma_write_header(), open_input_file(), open_output_file(), opt_map(), opt_target(), opus_header(), opus_packet(), output_packet(), parse_chunks(), parse_h264_sdp_line(), parse_packet(), parse_sdp_line(), pcm_read_packet(), pmp_packet(), pmt_cb(), prepare_sdp_description(), process_input(), put_system_header(), queue_attached_pictures(), r3d_read_packet(), r3d_read_rdvo(), r3d_read_reda(), r3d_read_redv(), r3d_seek(), rawvideo_read_packet(), rdt_parse_sdp_line(), read_braindead_odml_indx(), read_data(), read_frame(), read_frame_internal(), read_gab2_sub(), read_header(), read_kuki_chunk(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_seek(), read_seek2(), read_xing_toc(), recheck_discard_flags(), remove_decoded_packets(), rl2_read_header(), rl2_read_packet(), rl2_read_seek(), rm_read_close(), rm_read_dts(), rm_read_index(), rm_read_packet(), rm_write_header(), rm_write_packet(), rpl_read_packet(), rso_read_packet(), rso_write_header(), rtp_new_av_stream(), rtp_send_ilbc(), rtp_write_header(), rtp_write_packet(), rtsp_read_packet(), rtsp_read_play(), rtsp_read_seek(), sap_fetch_packet(), sap_read_header(), sap_write_close(), sap_write_header(), sap_write_packet(), search_hi_lo_keyframes(), seek_frame_generic(), seek_frame_internal(), seg_write_header(), seg_write_packet(), segment_mux_init(), set_disposition_bits(), setup_find_stream_info_opts(), show_packet(), show_stream(), skeleton_header(), smjpeg_write_header(), smjpeg_write_packet(), sox_read_packet(), sox_write_header(), sox_write_trailer(), spdif_read_packet(), spdif_write_header(), speex_header(), stream_component_close(), stream_component_open(), stream_cycle_channel(), swf_read_packet(), swf_write_header(), swf_write_packet(), swf_write_trailer(), sync(), theora_header(), tta_read_packet(), tta_read_seek(), update_initial_timestamps(), update_stream_timings(), v4l2_read_packet(), v4l2_set_parameters(), vc1t_read_packet(), vc1test_write_header(), voc_read_packet(), voc_write_header(), voc_write_packet(), vorbis_header(), vorbis_packet(), vqf_read_seek(), wav_write_header(), wav_write_trailer(), write_abst(), write_header(), write_headers(), write_manifest(), write_packet(), write_streaminfo(), write_trailer(), wsaud_read_packet(), wv_read_packet(), wv_read_seek(), wv_write_header(), xa_read_packet(), xiph_parse_sdp_line(), xiph_vorbis_init(), xmv_process_packet_header(), xwma_read_packet(), and yuv4_read_packet().

char AVFormatContext::filename[1024]
int64_t AVFormatContext::start_time

Position of the first frame of the component, in AV_TIME_BASE fractional seconds.

NEVER set this value directly: It is deduced from the AVStream values.

Demuxing only, set by libavformat.

Definition at line 952 of file avformat.h.

Referenced by av_dump_format(), avformat_open_input(), compute_chapters_end(), decode_thread(), do_streamcopy(), dxa_read_header(), estimate_timings(), event_loop(), fill_all_stream_timings(), flv_read_header(), movie_init(), open_input_file(), read_header(), show_format(), and update_stream_timings().

int64_t AVFormatContext::duration

Duration of the stream, in AV_TIME_BASE fractional seconds.

Only set this value if you know none of the individual stream durations and also do not set any of them. This is deduced from the AVStream values if not set.

Demuxing only, set by libavformat.

Definition at line 962 of file avformat.h.

Referenced by amf_parse_object(), av_dump_format(), avformat_open_input(), avi_read_header(), compute_chapters_end(), dxa_read_header(), estimate_timings(), estimate_timings_from_bit_rate(), event_loop(), fill_all_stream_timings(), flv_read_packet(), flv_write_header(), has_duration(), hls_read_header(), hls_read_seek(), matroska_read_header(), ogg_get_length(), open_output_file(), read_header(), show_format(), update_stream_timings(), and wv_read_seek().

int AVFormatContext::bit_rate

Total stream bitrate in bit/s, 0 if not available.

Never set it directly if the file_size and the duration are known as Libav can compute it automatically.

Definition at line 969 of file avformat.h.

Referenced by av_dump_format(), dv_read_header(), estimate_timings(), estimate_timings_from_bit_rate(), event_loop(), mpegts_read_header(), mxf_read_seek(), show_format(), spdif_read_packet(), and update_stream_timings().

unsigned int AVFormatContext::packet_size
int AVFormatContext::max_delay
int AVFormatContext::flags
unsigned int AVFormatContext::probesize

Maximum size of the data read from input for determining the input container format.

Demuxing only, set by the caller before avformat_open_input().

Definition at line 991 of file avformat.h.

Referenced by avformat_find_stream_info(), init_input(), and mpegts_read_header().

int AVFormatContext::max_analyze_duration

Maximum duration (in AV_TIME_BASE units) of the data read from input in avformat_find_stream_info().

Demuxing only, set by the caller before avformat_find_stream_info().

Definition at line 998 of file avformat.h.

Referenced by avformat_find_stream_info().

const uint8_t* AVFormatContext::key

Definition at line 1000 of file avformat.h.

Referenced by asf_parse_packet(), decrypt_init(), and mxf_decrypt_triplet().

int AVFormatContext::keylen

Definition at line 1001 of file avformat.h.

Referenced by asf_parse_packet(), asf_read_header(), decrypt_init(), and mxf_decrypt_triplet().

unsigned int AVFormatContext::nb_programs
AVProgram** AVFormatContext::programs
enum AVCodecID AVFormatContext::video_codec_id

Forced video codec_id.

Demuxing: Set by user.

Definition at line 1010 of file avformat.h.

Referenced by device_try_init(), ff_read_packet(), img_read_header(), mov_skip_multiple_stsd(), and v4l2_read_header().

enum AVCodecID AVFormatContext::audio_codec_id

Forced audio codec_id.

Demuxing: Set by user.

Definition at line 1016 of file avformat.h.

Referenced by audio_read_header(), ff_read_packet(), ff_voc_get_packet(), img_read_header(), and pulse_read_header().

enum AVCodecID AVFormatContext::subtitle_codec_id

Forced subtitle codec_id.

Demuxing: Set by user.

Definition at line 1022 of file avformat.h.

Referenced by ff_read_packet().

unsigned int AVFormatContext::max_index_size

Maximum amount of memory in bytes to use for the index of each stream.

If the index exceeds this size, entries will be discarded as needed to maintain a smaller size. This can lead to slower or less accurate seeking (depends on demuxer). Demuxers for which a full in-memory index is mandatory will ignore this.

  • muxing: unused
  • demuxing: set by user

Definition at line 1034 of file avformat.h.

Referenced by ff_reduce_index().

unsigned int AVFormatContext::max_picture_buffer

Maximum amount of memory in bytes to use for buffering frames obtained from realtime capture devices.

Definition at line 1040 of file avformat.h.

Referenced by shall_we_drop().

unsigned int AVFormatContext::nb_chapters

Number of chapters in AVChapter array.

When muxing, chapters are normally written in the file header, so nb_chapters should normally be initialized before write_header is called. Some muxers (e.g. mov and mkv) can also write chapters in the trailer. To write chapters in the trailer, nb_chapters must be zero when write_header is called and non-zero when write_trailer is called.

  • muxing: set by user
  • demuxing: set by libavformat

Definition at line 1053 of file avformat.h.

Referenced by asf_write_header1(), asf_write_markers(), av_dump_format(), avformat_free_context(), avpriv_new_chapter(), compute_chapters_end(), copy_chapters(), ff_metadata_conv_ctx(), mkv_write_chapters(), mkv_write_tags(), mov_create_chapter_track(), mov_write_chpl_tag(), mov_write_header(), mov_write_trailer(), mov_write_udta_tag(), nut_write_header(), ogm_chapter(), open_output_file(), read_chapter(), read_header(), seek_chapter(), write_headers(), and write_trailer().

AVChapter** AVFormatContext::chapters
AVDictionary* AVFormatContext::metadata

Metadata that applies to the whole file.

Freed by libavformat in avformat_free_context().

Definition at line 1064 of file avformat.h.

Referenced by add_metadata(), amf_parse_object(), ape_tag_read_field(), asf_read_header(), asf_write_header1(), av_dump_format(), avformat_free_context(), avi_read_header(), avi_read_nikon(), avi_read_tag(), bwf_write_bext_chunk(), bwf_write_bext_string(), close_connection(), decode_info_header(), dv_init_mux(), ff_ape_write_tag(), ff_id3v2_read(), ff_id3v2_write_metadata(), ff_metadata_conv_ctx(), ff_read_riff_info(), ff_riff_write_info(), ff_sauce_read(), ff_wms_parse_sdp_a_line(), flac_read_header(), flac_write_header(), flv_read_packet(), flv_write_header(), get_meta(), get_metadata(), get_string(), get_tag(), gxf_write_umf_material_description(), http_prepare_data(), id3v1_create_tag(), id3v1_set_string(), init_muxer(), main(), matroska_convert_tags(), matroska_read_header(), mkv_write_header(), mkv_write_tags(), mkv_write_tracks(), mov_metadata_gnre(), mov_metadata_int8_bypass_padding(), mov_metadata_int8_no_padding(), mov_metadata_track_or_disc_number(), mov_read_ftyp(), mov_read_mvhd(), mov_read_udta_string(), mov_write_3gp_udta_tag(), mov_write_header(), mov_write_string_metadata(), mov_write_trkn_tag(), mov_write_uuidusmt_tag(), mp3_read_header(), mpc_read_header(), mpegts_write_header(), mxf_write_header(), nsv_parse_NSVf_header(), ogg_write_header(), open_output_file(), parse_legacy_attrib(), parse_tag(), prepare_sdp_description(), read_header(), read_info_chunk(), read_ttag(), riff_has_valid_tags(), rm_read_metadata(), rpl_read_header(), rv10_write_header(), sap_write_header(), show_format(), smjpeg_read_header(), smjpeg_write_header(), sox_read_header(), sox_write_header(), tta_read_header(), vqf_read_header(), wc3_read_header(), write_globalinfo(), write_trailer(), and wv_read_header().

int64_t AVFormatContext::start_time_realtime

Start time of the stream in real world time, in microseconds since the Unix epoch (00:00 1st January 1970).

That is, pts=0 in the stream was captured at this real world time. Muxing only, set by the caller before avformat_write_header().

Definition at line 1072 of file avformat.h.

Referenced by ff_rtp_chain_mux_open(), ff_rtsp_setup_output_streams(), rtp_write_header(), and sap_write_header().

int AVFormatContext::fps_probe_size

The number of frames used for determining the framerate in avformat_find_stream_info().

Demuxing only, set by the caller before avformat_find_stream_info().

Definition at line 1079 of file avformat.h.

Referenced by avformat_find_stream_info().

int AVFormatContext::error_recognition

Error recognition; higher values will detect more errors but may misdetect some more or less valid parts as errors.

Demuxing only, set by the caller before avformat_open_input().

Definition at line 1086 of file avformat.h.

Referenced by avi_read_header(), ebml_parse_id(), ff_flac_parse_picture(), ff_rm_read_mdpr_codecdata(), matroska_read_header(), ogg_get_headers(), and read_header().

AVIOInterruptCB AVFormatContext::interrupt_callback
int AVFormatContext::debug

Flags to enable debugging.

Definition at line 1102 of file avformat.h.

Referenced by read_frame_internal().

int64_t AVFormatContext::max_interleave_delta

Maximum buffering duration for interleaving.

To ensure all the streams are interleaved correctly, av_interleaved_write_frame() will wait until it has at least one packet for each stream before actually writing any packets to the output file. When some streams are "sparse" (i.e. there are large gaps between successive packets), this can result in excessive buffering.

This field specifies the maximum difference between the timestamps of the first and the last packet in the muxing queue, above which libavformat will output a packet regardless of whether it has queued a packet for all the streams.

Muxing only, set by the caller before avformat_write_header().

Definition at line 1121 of file avformat.h.

Referenced by ff_interleave_packet_per_dts().

struct AVPacketList* AVFormatContext::packet_buffer

This buffer is only needed when packets were already buffered but not decoded, for example to get the codec parameters in MPEG streams.

Definition at line 1136 of file avformat.h.

Referenced by av_read_frame(), avformat_find_stream_info(), compute_pkt_fields(), ff_interleave_add_packet(), ff_interleave_packet_per_dts(), ff_restore_parser_state(), ff_store_parser_state(), flush_packet_queue(), mxf_interleave_get_packet(), update_initial_durations(), and update_initial_timestamps().

struct AVPacketList* AVFormatContext::packet_buffer_end
int64_t AVFormatContext::data_offset
struct AVPacketList* AVFormatContext::raw_packet_buffer

Raw packets from the demuxer, prior to parsing and decoding.

This buffer is used for buffering packets until the codec can be identified, as parsing cannot be done without knowing the codec.

Definition at line 1148 of file avformat.h.

Referenced by ff_read_packet(), ff_restore_parser_state(), ff_store_parser_state(), flush_packet_queue(), and queue_attached_pictures().

struct AVPacketList* AVFormatContext::raw_packet_buffer_end

Definition at line 1149 of file avformat.h.

Referenced by ff_read_packet(), flush_packet_queue(), and queue_attached_pictures().

struct AVPacketList* AVFormatContext::parse_queue

Packets split by the parser get queued here.

Definition at line 1153 of file avformat.h.

Referenced by ff_restore_parser_state(), ff_store_parser_state(), flush_packet_queue(), parse_packet(), and read_frame_internal().

struct AVPacketList* AVFormatContext::parse_queue_end

Definition at line 1154 of file avformat.h.

Referenced by flush_packet_queue(), parse_packet(), and read_frame_internal().

int AVFormatContext::raw_packet_buffer_remaining_size
int64_t AVFormatContext::offset

Offset to remap timestamps to be non-negative.

Expressed in timebase units.

Definition at line 1165 of file avformat.h.

Referenced by write_packet().

AVRational AVFormatContext::offset_timebase

Timebase for the timestamp offset.

Definition at line 1170 of file avformat.h.

Referenced by write_packet().

AVFormatInternal* AVFormatContext::internal

An opaque field for libavformat internal usage.

Must not be accessed in any way by callers.

Definition at line 1176 of file avformat.h.

Referenced by avformat_alloc_context(), avformat_free_context(), ff_interleave_packet_per_dts(), and init_muxer().


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