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
 Flags signalling stream properties. 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
 Flags modifying the (de)muxer behaviour. More...
 
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...
 
int strict_std_compliance
 Allow non-standard and experimental extension. More...
 
int event_flags
 Flags for the user to detect events happening on the file. More...
 
int max_ts_probe
 Maximum number of packets to read while waiting for the first timestamp. More...
 
int avoid_negative_ts
 Avoid negative timestamps during muxing. More...
 
AVFormatInternalinternal
 An opaque field for libavformat internal usage. More...
 
voidopaque
 Arbitrary user data set by the caller. More...
 
int(* io_open )(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)
 A callback for opening new IO streams. More...
 
void(* io_close )(struct AVFormatContext *s, AVIOContext *pb)
 A callback for closing the streams opened with AVFormatContext.io_open(). More...
 
char * protocol_blacklist
 A comma-separated list of protocol names that will not be used internally by libavformat. More...
 
char * protocol_whitelist
 A comma-separated list of protocol names that can be used internally by libavformat. 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 940 of file avformat.h.

Field Documentation

◆ av_class

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 945 of file avformat.h.

Referenced by avformat_get_context_defaults().

◆ iformat

struct AVInputFormat* AVFormatContext::iformat

◆ oformat

struct AVOutputFormat* AVFormatContext::oformat

◆ priv_data

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 968 of file avformat.h.

Referenced by 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_deinterleave(), asf_read_close(), asf_read_content_desc(), asf_read_data(), asf_read_ext_content(), asf_read_ext_stream_properties(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata_obj(), asf_read_multiple_payload(), asf_read_packet(), asf_read_packet_header(), asf_read_payload(), asf_read_picture(), asf_read_properties(), asf_read_replicated_data(), asf_read_seek(), asf_read_simple_index(), asf_read_single_payload(), asf_read_stream_properties(), asf_read_subpayload(), asf_read_timestamp(), asf_read_unknown(), asf_store_aspect_ratio(), 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_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(), avfoundation_list_capture_devices(), avfoundation_read_close(), avfoundation_read_header(), avfoundation_read_packet(), 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(), compute_sidx_size(), configure_video_device(), crc_write_header(), crc_write_packet(), crc_write_trailer(), create_stream(), dash_flush(), dash_free(), dash_write_header(), dash_write_packet(), dash_write_trailer(), dc1394_read_common(), decrypt_init(), detect_unknown_subobject(), device_init(), dirac_gptopts(), dirac_header(), draw_rectangle(), dss_723_1_read_packet(), dss_read_close(), dss_read_header(), dss_read_packet(), dss_skip_audio_header(), dss_sp_read_packet(), 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_oss_audio_open(), 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_h261(), ff_rtp_send_h263(), ff_rtp_send_h263_rfc2190(), ff_rtp_send_h264_hevc(), 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(), film_read_close(), film_read_header(), film_read_packet(), film_read_seek(), find_header_idx(), find_stream(), flac_header(), flac_write_header(), flac_write_packet(), flac_write_trailer(), flic_read_header(), flic_read_packet(), flush_buffered(), 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(), g729_read_header(), get_aiff_header(), get_moov_size(), get_packet_header(), get_riff(), get_sidx_size(), get_sockaddr(), get_system_header_size(), get_vcd_padding_size(), get_video_config(), 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_parse_tracks(), 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_rate(), mmf_read_header(), mmf_read_packet(), mov_auto_flush_fragment(), mov_create_chapter_track(), mov_flush_fragment(), mov_flush_fragment_interleaving(), mov_free(), mov_read_chapters(), mov_read_close(), mov_read_header(), mov_read_packet(), mov_read_seek(), mov_write_ftyp_tag(), mov_write_header(), mov_write_identification(), mov_write_packet(), mov_write_trailer(), mp3_parse_info_tag(), mp3_parse_vbr_tags(), mp3_parse_vbri_tag(), mp3_queue_flush(), mp3_seek(), mp3_update_xing(), mp3_write_audio_packet(), mp3_write_header(), mp3_write_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_prefix_m2ts_header(), mpegts_raw_read_packet(), mpegts_read_close(), mpegts_read_header(), mpegts_read_packet(), mpegts_resync(), 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(), mv_read_header(), mv_read_packet(), mv_read_seek(), 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_random_index_pack(), 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(), ni_prepare_read(), 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_close(), oma_read_header(), oma_read_packet(), oma_read_seek(), open_input(), opus_header(), opus_packet(), output_packet(), parse_audio_var(), parse_chunks(), parse_command_line(), parse_global_var(), parse_keyframes_index(), parse_media_type(), parse_videoinfoheader2(), pcm_read_header(), pixfmt_from_pixmap_format(), 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_packet(), r3d_read_rdvo(), r3d_read_red1(), r3d_read_reda(), 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(), reset_packet_state(), 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_mpegts_write_close(), rtp_mpegts_write_header(), rtp_mpegts_write_packet(), 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(), save_avio_options(), 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(), setup_stream(), setup_streams(), setup_window(), 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(), smush_read_header(), smush_read_packet(), 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_probe(), 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(), vp8_gptopts(), vp8_header(), vp8_packet(), vqf_read_header(), vqf_read_packet(), vqf_read_seek(), wait_frame(), 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_metadata(), 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(), xa_read_header(), xa_read_packet(), xcbgrab_frame(), xcbgrab_read_close(), xcbgrab_read_header(), xcbgrab_read_packet(), xcbgrab_reposition(), xcbgrab_update_region(), 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_write_header(), and yuv4_write_packet().

◆ pb

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 982 of file avformat.h.

Referenced by a64_write_header(), add_metadata(), 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_read_content_desc(), asf_read_data(), asf_read_ext_content(), asf_read_ext_stream_properties(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_metadata_obj(), asf_read_multiple_payload(), asf_read_packet(), asf_read_packet_header(), asf_read_payload(), asf_read_picture(), asf_read_properties(), asf_read_replicated_data(), asf_read_seek(), asf_read_simple_index(), asf_read_single_payload(), asf_read_stream_properties(), asf_read_subpayload(), asf_read_timestamp(), asf_read_unknown(), asf_read_value(), asf_set_metadata(), asf_store_aspect_ratio(), 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(), avformat_write_header(), 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(), compute_partition_essence_offset(), crc_write_trailer(), dash_flush(), dash_free(), dash_write_header(), daud_packet(), daud_write_packet(), decode_frame(), decode_frame_header(), decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), decode_thread(), detect_unknown_subobject(), dfa_read_header(), dfa_read_packet(), dss_723_1_read_packet(), dss_read_header(), dss_read_metadata_date(), dss_read_metadata_string(), dss_skip_audio_header(), dss_sp_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_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_riff_write_info(), ff_rtp_chain_mux_open(), ff_rtp_send_data(), ff_rtsp_open_transport_ctx(), ff_rtsp_tcp_write_packet(), ff_rtsp_undo_setup(), ff_sauce_read(), ff_seek_frame_binary(), ff_voc_get_packet(), ff_wms_parse_sdp_a_line(), film_read_header(), film_read_packet(), film_read_seek(), find_and_decode_index(), finish(), 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(), g729_read_packet(), get_aiff_header(), get_meta(), get_metadata(), get_packet_header(), 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(), 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_fps(), 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_rate(), 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_info_tag(), mp3_parse_vbr_tags(), mp3_parse_vbri_tag(), mp3_queue_flush(), mp3_read_header(), mp3_read_packet(), mp3_update_xing(), mp3_write_header(), 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_prefix_m2ts_header(), mpegts_raw_read_packet(), mpegts_read_header(), mpegts_resync(), mpegts_write_end(), mpegts_write_flush(), mpegts_write_header(), mpegts_write_packet_internal(), mpegts_write_pes(), mpjpeg_read_header(), mpjpeg_read_packet(), mpjpeg_write_header(), mpjpeg_write_packet(), msnwc_tcp_read_header(), msnwc_tcp_read_packet(), mtv_read_header(), mtv_read_packet(), mv_read_header(), mv_read_packet(), mv_read_seek(), mxf_decrypt_triplet(), mxf_parse_handle_essence(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet(), mxf_read_packet_old(), mxf_read_random_index_pack(), 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(), ni_prepare_read(), 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(), parse_audio_var(), parse_global_var(), parse_multipart_header(), parse_video_var(), 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_metadata(), 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(), r3d_seek(), 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_table(), read_xing_toc(), reposition(), 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(), rtcp_send_sr(), rtp_mpegts_write_close(), rtp_mpegts_write_header(), rtp_mpegts_write_packet(), rtp_write_header(), rtp_write_trailer(), rv10_write_header(), sap_read_header(), sap_write_close(), save_avio_options(), 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(), smush_read_header(), smush_read_packet(), 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(), stream_setup(), swf_probe(), 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(), var_read_metadata(), 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_metadata(), 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(), yuv4_read_packet(), and yuv4_write_packet().

◆ ctx_flags

int AVFormatContext::ctx_flags

◆ nb_streams

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 996 of file avformat.h.

Referenced by add_input_streams(), 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(), avformat_open_input(), avi_read_close(), avi_read_header(), avi_read_idx1(), 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_frame_code(), check_init_output_file(), check_packet(), check_stream_max_drift(), check_stream_specifier(), clean_index(), clear_index_entries(), copy_metadata(), dash_flush(), dash_free(), dash_write_header(), dash_write_trailer(), decode_info_header(), decode_syncpoint(), dv_init_mux(), enable_tracks(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), ff_audio_interleave_close(), ff_audio_interleave_init(), ff_audio_rechunk_interleave(), ff_find_stream_index(), ff_framehash_write_header(), 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_update_cur_dts(), fill_all_stream_timings(), film_read_header(), finalize_packet(), find_and_decode_index(), finish_output_stream(), flv_data_packet(), flv_read_metabody(), flv_read_packet(), flv_write_header(), flv_write_trailer(), get_packet_header(), get_sindex(), get_sockaddr(), 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(), ilbc_write_header(), init_input_filter(), init_muxer(), 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_flush_fragment(), mov_read_chan(), mov_read_chapters(), mov_read_close(), mov_read_colr(), 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_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tfdt(), mov_read_tkhd(), mov_read_trak(), mov_read_trun(), mov_read_wave(), mov_read_wfex(), mov_write_ftyp_tag(), mov_write_header(), mov_write_identification(), mov_write_moov_tag(), mov_write_packet(), mp3_write_header(), 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(), mv_read_packet(), mv_read_seek(), mxf_compute_index_tables(), mxf_free(), mxf_get_stream_index(), mxf_handle_small_eubc(), mxf_interleave_get_packet(), mxf_read_close(), mxf_read_seek(), mxf_write_header(), mxf_write_index_table_segment(), mxf_write_multi_descriptor(), mxf_write_package(), mxf_write_partition(), need_output(), new_output_stream(), ni_prepare_read(), nsv_parse_NSVs_header(), nsv_read_chunk(), nsv_read_header(), nut_read_header(), nut_write_header(), nut_write_packet(), ogg_write_header(), ogg_write_packet(), ogg_write_trailer(), open_input_file(), open_output_file(), output_packet(), pmt_cb(), print_final_stats(), put_system_header(), qt_rtp_parse_packet(), queue_attached_pictures(), r3d_read_packet(), r3d_read_reda(), rdt_parse_sdp_line(), read_braindead_odml_indx(), read_data(), read_frame_internal(), read_header(), read_packet(), 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_mpegts_write_header(), rtp_write_header(), rtsp_read_header(), rtsp_read_packet(), rv10_write_header(), sap_fetch_packet(), sap_read_header(), sap_write_close(), sap_write_header(), 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(), stream_setup(), swf_read_packet(), swf_write_header(), swf_write_trailer(), sync(), update_stream_timings(), voc_read_packet(), voc_write_header(), write_header(), write_headers(), write_mainheader(), write_manifest(), write_trailer(), wv_write_header(), xmv_process_packet_header(), and yuv4_write_header().

◆ streams

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 1008 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_read_data(), asf_read_ext_stream_properties(), asf_read_header(), asf_read_seek(), asf_read_simple_index(), asf_read_timestamp(), 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(), avformat_open_input(), 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_frame_code(), celt_header(), check_packet(), check_stream_max_drift(), check_stream_specifier(), clean_index(), clear_index_entries(), config_output_props(), copy_metadata(), dash_flush(), dash_write_header(), dash_write_packet(), dash_write_trailer(), daud_write_header(), decode_frame(), decode_info_header(), decode_stream_header(), decode_thread(), dirac_header(), dump_stream_format(), dv_init_mux(), dv_parse_sdp_line(), dv_write_packet(), enable_tracks(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), ff_alsa_open(), ff_audio_interleave_close(), ff_audio_interleave_init(), ff_audio_rechunk_interleave(), ff_find_stream_index(), ff_framehash_write_header(), ff_id3v2_write_apic(), ff_interleave_add_packet(), ff_interleave_packet_per_dts(), ff_interleaved_peek(), 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_rtp_chain_mux_open(), ff_rtp_send_aac(), ff_rtp_send_amr(), ff_rtp_send_jpeg(), ff_rtp_send_latm(), ff_rtp_send_xiph(), ff_rtsp_open_transport_ctx(), ff_sauce_read(), ff_seek_frame_binary(), ff_update_cur_dts(), ff_write_chained(), fill_all_stream_timings(), film_read_header(), film_read_seek(), find_and_decode_index(), find_stream(), flac_header(), flac_write_header(), flac_write_trailer(), flush_buffered(), flush_packet(), flv_data_packet(), flv_read_metabody(), flv_read_packet(), flv_write_header(), flv_write_packet(), flv_write_trailer(), g729_read_packet(), get_aiff_header(), get_packet_header(), get_private_data(), get_sockaddr(), 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(), handle_file(), has_duration(), hds_flush(), hds_write_header(), hds_write_packet(), hevc_parse_sdp_line(), hls_mux_init(), hls_read_header(), hls_read_packet(), hls_read_seek(), hls_write_header(), hls_write_packet(), idcin_read_seek(), ilbc_parse_sdp_line(), ilbc_read_packet(), ilbc_write_header(), img_read_packet(), init_input_filter(), init_muxer(), 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_packet(), mkv_write_packet_internal(), mkv_write_tags(), mkv_write_track(), mmf_rate(), mov_find_next_sample(), mov_read_chan(), mov_read_chapters(), mov_read_close(), mov_read_colr(), 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_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tfdt(), 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_update_xing(), mp3_write_header(), mp3_write_packet(), mp3_write_xing(), mpc8_parse_seektable(), mpc8_read_seek(), mpc_read_packet(), mpc_read_seek(), 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(), mv_read_packet(), mv_read_seek(), mxf_compare_timestamps(), mxf_compute_index_tables(), mxf_compute_sample_count(), 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_set_audio_pts(), mxf_write_essence_container_refs(), mxf_write_header(), mxf_write_index_table_segment(), mxf_write_multi_descriptor(), mxf_write_package(), mxf_write_packet(), mxf_write_system_item(), nal_send(), ni_prepare_read(), nsv_read_chunk(), 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_packet_internal(), 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(), output_segment_list(), parse_chunks(), parse_h264_sdp_line(), parse_packet(), parse_sdp_line(), pcm_read_packet(), pmp_packet(), pmt_cb(), prepare_input_packet(), 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(), rtcp_send_sr(), rtp_mpegts_write_header(), rtp_mpegts_write_packet(), 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(), 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(), 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(), stream_setup(), 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_extradata(), 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(), vp8_header(), vp8_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(), xmv_process_packet_header(), xwma_read_packet(), yuv4_generate_header(), yuv4_read_packet(), yuv4_write_header(), and yuv4_write_packet().

◆ filename

char AVFormatContext::filename[1024]

◆ start_time

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 1025 of file avformat.h.

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

◆ duration

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 1035 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(), get_sockaddr(), has_duration(), hls_read_header(), hls_read_seek(), matroska_parse_tracks(), matroska_read_header(), ogg_get_length(), open_output_file(), read_header(), show_format(), update_stream_timings(), write_metadata(), and wv_read_seek().

◆ bit_rate

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 1042 of file avformat.h.

Referenced by av_dump_format(), dv_read_header(), estimate_timings(), estimate_timings_from_bit_rate(), event_loop(), g729_read_header(), mpegts_read_header(), mxf_read_seek(), show_format(), spdif_read_packet(), and update_stream_timings().

◆ packet_size

unsigned int AVFormatContext::packet_size

◆ max_delay

int AVFormatContext::max_delay

◆ flags

int AVFormatContext::flags

◆ probesize

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 1075 of file avformat.h.

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

◆ max_analyze_duration

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 1082 of file avformat.h.

Referenced by avformat_find_stream_info().

◆ key

const uint8_t* AVFormatContext::key

◆ keylen

int AVFormatContext::keylen

◆ nb_programs

unsigned int AVFormatContext::nb_programs

◆ programs

AVProgram** AVFormatContext::programs

◆ video_codec_id

enum AVCodecID AVFormatContext::video_codec_id

Forced video codec_id.

Demuxing: Set by user.

Definition at line 1094 of file avformat.h.

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

◆ audio_codec_id

enum AVCodecID AVFormatContext::audio_codec_id

Forced audio codec_id.

Demuxing: Set by user.

Definition at line 1100 of file avformat.h.

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

◆ subtitle_codec_id

enum AVCodecID AVFormatContext::subtitle_codec_id

Forced subtitle codec_id.

Demuxing: Set by user.

Definition at line 1106 of file avformat.h.

Referenced by ff_read_packet().

◆ max_index_size

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 1118 of file avformat.h.

Referenced by ff_reduce_index().

◆ max_picture_buffer

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 1124 of file avformat.h.

Referenced by shall_we_drop().

◆ nb_chapters

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 1137 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().

◆ chapters

AVChapter** AVFormatContext::chapters

◆ metadata

AVDictionary* AVFormatContext::metadata

Metadata that applies to the whole file.

Freed by libavformat in avformat_free_context().

Definition at line 1148 of file avformat.h.

Referenced by add_metadata(), amf_parse_object(), ape_tag_read_field(), asf_read_ext_content(), asf_read_metadata(), asf_read_properties(), 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(), decode_info_header(), dss_read_metadata_date(), dss_read_metadata_string(), 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(), get_meta(), get_metadata(), get_metadata_lang(), get_sockaddr(), get_string(), get_tag(), gxf_write_umf_material_description(), id3v1_create_tag(), id3v1_set_string(), init_muxer(), main(), matroska_convert_tags(), matroska_read_header(), mkv_write_header(), mkv_write_stereo_mode(), mkv_write_tags(), mov_metadata_gnre(), mov_metadata_int8_bypass_padding(), mov_metadata_int8_no_padding(), mov_metadata_loci(), mov_metadata_track_or_disc_number(), mov_read_ftyp(), mov_read_header(), mov_read_mvhd(), mov_read_replaygain(), mov_read_udta_string(), mov_write_3gp_udta_tag(), mov_write_header(), 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(), read_frame_internal(), 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(), var_read_metadata(), vqf_read_header(), wc3_read_header(), write_globalinfo(), write_manifest(), write_metadata(), write_trailer(), and wv_read_header().

◆ start_time_realtime

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 1156 of file avformat.h.

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

◆ fps_probe_size

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 1163 of file avformat.h.

Referenced by avformat_find_stream_info().

◆ error_recognition

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 1170 of file avformat.h.

Referenced by asf_write_header1(), avi_read_header(), ebml_parse_id(), ff_flac_parse_picture(), ff_get_wav_header(), ff_rm_read_mdpr_codecdata(), matroska_read_header(), mov_read_stsc(), nuv_header(), ogg_get_headers(), and read_header().

◆ interrupt_callback

AVIOInterruptCB AVFormatContext::interrupt_callback

Custom interrupt callbacks for the I/O layer.

demuxing: set by the user before avformat_open_input(). muxing: set by the user before avformat_write_header() (mainly useful for AVFMT_NOFILE formats). The callback should also be passed to avio_open2() if it's used to open the file.

Definition at line 1181 of file avformat.h.

Referenced by avformat_find_stream_info(), check_init_output_file(), dash_write_header(), ff_rtp_chain_mux_open(), ff_rtsp_open_transport_ctx(), hds_write_header(), hls_mux_init(), hls_read_header(), io_open_default(), ism_flush(), ism_seek(), ism_write_header(), open_input_file(), open_output_file(), rtsp_listen(), rtsp_read_setup(), sap_read_header(), sap_write_header(), segment_mux_init(), and stream_setup().

◆ debug

int AVFormatContext::debug

Flags to enable debugging.

Definition at line 1186 of file avformat.h.

Referenced by read_frame_internal().

◆ max_interleave_delta

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 1205 of file avformat.h.

Referenced by ff_interleave_packet_per_dts().

◆ strict_std_compliance

int AVFormatContext::strict_std_compliance

Allow non-standard and experimental extension.

See also
AVCodecContext.strict_std_compliance

Definition at line 1211 of file avformat.h.

Referenced by dash_write_header(), mov_get_codec_tag(), nut_write_header(), rtp_write_header(), and validate_codec_tag().

◆ event_flags

int AVFormatContext::event_flags

Flags for the user to detect events happening on the file.

Flags must be cleared by the user once the event has been handled. A combination of AVFMT_EVENT_FLAG_*.

Definition at line 1218 of file avformat.h.

Referenced by amf_parse_object(), decode_info_header(), flac_read_header(), flv_write_packet(), mov_metadata_gnre(), mov_metadata_int8_bypass_padding(), mov_metadata_int8_no_padding(), mov_metadata_loci(), mov_metadata_track_or_disc_number(), mov_read_udta_string(), and read_frame_internal().

◆ max_ts_probe

int AVFormatContext::max_ts_probe

Maximum number of packets to read while waiting for the first timestamp.

Decoding only.

Definition at line 1225 of file avformat.h.

Referenced by avformat_find_stream_info().

◆ avoid_negative_ts

int AVFormatContext::avoid_negative_ts

Avoid negative timestamps during muxing.

Any value of the AVFMT_AVOID_NEG_TS_* constants. Note, this only works when using av_interleaved_write_frame.

  • muxing: Set by user
  • demuxing: unused

Definition at line 1234 of file avformat.h.

Referenced by avformat_write_header(), dash_write_header(), dash_write_packet(), ff_mov_write_packet(), mov_write_header(), and write_packet().

◆ internal

AVFormatInternal* AVFormatContext::internal

◆ opaque

void* AVFormatContext::opaque

Arbitrary user data set by the caller.

Definition at line 1248 of file avformat.h.

Referenced by dash_write_header(), hls_mux_init(), and segment_mux_init().

◆ io_open

int(* AVFormatContext::io_open) (struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)

A callback for opening new IO streams.

Whenever a muxer or a demuxer needs to open an IO stream (typically from avformat_open_input() for demuxers, but for certain formats can happen at other times as well), it will call this callback to obtain an IO context.

Parameters
sthe format context
pbon success, the newly opened IO context should be returned here
urlthe url to open
flagsa combination of AVIO_FLAG_*
optionsa dictionary of additional options, with the same semantics as in avio_open2()
Returns
0 on success, a negative AVERROR code on failure
Note
Certain muxers and demuxers do nesting, i.e. they open one or more additional internal format contexts. Thus the AVFormatContext pointer passed to this callback may be different from the one facing the caller. It will, however, have the same 'opaque' field.

Definition at line 1270 of file avformat.h.

Referenced by avformat_get_context_defaults(), copy_moof(), dash_flush(), dash_write_header(), find_index_range(), hls_mux_init(), hls_read_header(), hls_start(), hls_window(), img_read_packet(), init_file(), init_input(), mov_open_dref(), open_in(), open_temporary(), open_url(), parse_fragment(), seg_write_header(), seg_write_packet(), segment_hls_window(), segment_mux_init(), segment_start(), shift_data(), write_abst(), and write_manifest().

◆ io_close

void(* AVFormatContext::io_close) (struct AVFormatContext *s, AVIOContext *pb)

A callback for closing the streams opened with AVFormatContext.io_open().

Definition at line 1276 of file avformat.h.

Referenced by avformat_get_context_defaults(), dash_write_header(), ff_format_io_close(), hls_mux_init(), and segment_mux_init().

◆ protocol_blacklist

char* AVFormatContext::protocol_blacklist

A comma-separated list of protocol names that will not be used internally by libavformat.

If this field is a non-empty string, then protocols listed here will be forbidden.

This field should be set using AVOptions.

Definition at line 1285 of file avformat.h.

Referenced by ff_rtsp_open_transport_ctx(), io_open_default(), ism_write_header(), rtsp_listen(), sap_read_header(), and sap_write_header().

◆ protocol_whitelist

char* AVFormatContext::protocol_whitelist

A comma-separated list of protocol names that can be used internally by libavformat.

If this field is a non-empty string, all protocols not listed here will be forbidden.

This field should be set using AVOptions.

Definition at line 1294 of file avformat.h.

Referenced by ff_rtsp_open_transport_ctx(), io_open_default(), ism_write_header(), rtsp_listen(), sap_read_header(), and sap_write_header().


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