A class for AVOptions.

Set on stream creation.

Definition at line 748 of file avformat.h.

Referenced by avformat_new_stream(), and print_streams().

stream index in AVFormatContext

Examples

mux.c, and qsv_decode.c.

Definition at line 750 of file avformat.h.

Referenced by aac_parse_packet(), ac3_handle_packet(), add_stream_to_programs(), amr_handle_packet(), asf_read_stream_properties(), audio_frame_obu(), av1_handle_packet(), av_read_frame(), avformat_find_stream_info(), avformat_match_stream_specifier(), avformat_new_stream(), avformat_stream_group_add_stream(), avpriv_set_pts_info(), cdxl_read_packet(), cin_read_header(), compute_muxer_pkt_fields(), compute_pkt_fields(), dash_check_bitstream(), dc1394_read_common(), demux_stream_alloc(), dhav_read_packet(), dshow_add_device(), dump_stream_group(), dv_handle_packet(), ea_read_header(), eit_cb(), enc_stats_write(), enc_thread_set_name(), encode_frame(), ff_add_attached_pic(), ff_h263_handle_packet(), ff_id3v2_write_apic(), ff_rm_parse_packet(), ff_rm_retrieve_cache(), ff_rtsp_open_transport_ctx(), ff_vorbis_update_metadata(), fg_complex_bind_input(), film_read_header(), find_matching_stream(), flac_write_picture(), flv_data_packet(), flv_read_packet(), get_decoder_for_stream(), get_dvb_stream_type(), get_m2ts_stream_type(), get_subtitle_pkt(), gxf_write_header(), gxf_write_media_preamble(), h261_handle_packet(), h263_handle_packet(), h264_handle_packet(), heif_add_stream(), hevc_handle_packet(), hls_init(), hls_read_packet(), hxvs_create_audio_stream(), hxvs_create_video_stream(), idcin_read_header(), ifv_read_header(), init_audio(), init_video_stream(), ipmovie_read_header(), jpeg_parse_packet(), latm_parse_packet(), main(), match_stream_specifier(), mov_build_index(), mov_estimate_video_delay(), mov_fix_index(), mov_parse_heif_items(), mov_parse_lcevc_streams(), mov_parse_tiles(), mov_read_kind(), mov_read_stts(), mov_read_trak(), mov_read_trun(), mov_seek_stream(), mov_setup_track_ids(), mov_write_packet(), mov_write_squashed_packet(), mov_write_squashed_packets(), mov_write_subtitle_tag(), mov_write_tkhd_tag(), movie_common_init(), mpa_robust_parse_packet(), mpeg_parse_packet(), mpegps_read_packet(), mpegts_init(), mpegts_push_data(), mpegts_set_stream_info(), mpegts_write_pes(), mux_id3(), muxer_thread(), mxf_compute_sample_count(), mxf_handle_missing_index_segment(), mxf_init(), mxf_parse_structural_metadata(), mxf_set_current_edit_unit(), mxf_write_generic_desc(), mxf_write_packet(), mxf_write_structural_component(), mxf_write_track(), new_pes_packet(), new_stream_video(), nsv_read_chunk(), nuv_header(), open_input_file(), opt_match_per_stream(), opus_parse_packet(), ost_add(), ost_bind_filter(), parse_chunk(), parse_packet(), parse_strk(), parse_vtrk(), playlist_needed(), pmt_cb(), prepare_input_packet(), print_report(), print_stream_maps(), print_streams(), probe_codec(), qdm2_restore_block(), qt_rtp_parse_packet(), rdt_load_mdpr(), rdt_parse_packet(), read_frame(), read_frame_internal(), return_stored_frame(), rfc4175_handle_packet(), roq_read_packet(), rtp_parse_packet_internal(), scd_read_track(), seg_check_bitstream(), seg_write_packet(), seq_read_header(), sga_audio_packet(), sga_video_packet(), show_frame(), show_stream(), show_stream_group(), smacker_read_header(), smjpeg_read_header(), smush_read_header(), store_packet(), str_read_packet(), stream_specifier_match(), svq3_parse_packet(), thp_read_header(), update_video_stats(), vc2hq_handle_frame_fragment(), vc2hq_handle_sequence_header(), vc2hq_mark_end_of_sequence(), vid_read_packet(), decklink_input_callback::VideoInputFrameArrived(), vmd_read_header(), vp8_handle_packet(), vp9_handle_packet(), wc3_read_header(), write_frame(), write_packet(), write_packets_from_bsfs(), write_stream_data(), wsaud_read_packet(), wsvqa_read_header(), wsvqa_read_packet(), xa_read_packet(), xiph_handle_packet(), and xmv_process_packet_header().

Format-specific stream ID.

decoding: set by libavformat encoding: set by the user, replaced by libavformat if left unset

Examples

mux.c.

Definition at line 756 of file avformat.h.

Referenced by add_dstream(), add_stream(), add_video_stream(), asf_read_stream_properties(), asfrtp_parse_packet(), asfrtp_parse_sdp_line(), avi_read_header(), avisynth_create_stream(), compute_pkt_fields(), concat_parse_script(), create_new_audio_stream(), create_stream(), dat_read_packet(), dshow_add_device(), dump_stream_format(), dvdvideo_audio_stream_add(), dvdvideo_read_packet(), dvdvideo_subp_stream_add(), dvdvideo_video_stream_add(), eit_cb(), ff_iamf_add_audio_element(), ff_parse_mpeg2_descriptor(), ff_rm_parse_packet(), ff_rtp_chain_mux_open(), find_matching_stream(), fix_stream_ids(), flv_read_packet(), get_attachment(), get_sindex(), handle_file(), heif_add_stream(), hls_mux_init(), hxvs_create_audio_stream(), hxvs_create_video_stream(), iamf_read_header(), iamf_write_packet(), lavfi_read_header(), match_stream_specifier(), match_streams_exact_id(), mov_parse_lcevc_streams(), mov_read_covr(), mov_read_tkhd(), mov_read_trak(), mov_setup_track_ids(), mpegps_read_packet(), mpegts_init(), mpegts_push_data(), mpegts_set_stream_info(), mxf_add_metadata_stream(), mxf_parse_structural_metadata(), new_stream(), nsv_parse_NSVs_header(), ogg_new_stream(), open_demux_for_component(), ost_add(), parse_strk(), pmt_cb(), rdt_parse_sdp_line(), read_header(), read_packet(), rm_read_header(), rm_read_multi(), rm_sync(), rtp_mpegts_write_header(), rtp_write_header(), sap_fetch_packet(), sap_read_header(), set_context_streams_from_tracks(), show_stream(), stream_specifier_match(), swf_read_packet(), track_header(), ts_discontinuity_detect(), update_streams_from_subdemuxer(), and write_muxed_file().

Codec parameters associated with this stream.

Allocated and freed by libavformat in avformat_new_stream() and avformat_free_context() respectively.

• demuxing: filled by libavformat on stream creation or in avformat_find_stream_info()
• muxing: filled by the caller before avformat_write_header()

Examples

decode_filter_audio.c, decode_filter_video.c, demux_decode.c, extract_mvs.c, mux.c, qsv_decode.c, qsv_transcode.c, remux.c, transcode.c, transcode_aac.c, and vaapi_transcode.c.

Definition at line 767 of file avformat.h.

Referenced by aa_read_header(), ac4_read_header(), ace_read_header(), acm_read_header(), add_display_matrix(), add_display_matrix_to_stream(), add_dstream(), add_keyframes_index(), add_metadata_from_renditions(), add_video_stream(), adp_read_header(), ads_read_header(), adts_aac_read_header(), aea_read_header(), aea_write_header(), aea_write_trailer(), afc_read_header(), aiff_read_header(), aiff_read_packet(), aiff_write_header(), aix_read_header(), amf_parse_object(), amr_handle_packet(), amv_init(), amv_write_header(), apac_read_header(), apc_read_header(), ape_read_header(), ape_tag_read_field(), apng_read_header(), apng_write_header(), aptx_hd_read_header(), aptx_read_header(), aptx_read_header_common(), apv_read_header(), aqt_read_header(), argo_brp_read_header(), asf_read_ext_stream_properties(), asf_read_header(), asf_read_picture(), asf_read_stream_properties(), asf_write_header1(), asfrtp_parse_sdp_line(), ass_read_header(), ast_read_header(), at_write_header(), audio_read_header(), audio_write_frame(), audio_write_header(), av1_read_header(), av_find_best_stream(), av_find_default_stream_index(), av_guess_sample_aspect_ratio(), avformat_find_stream_info(), avformat_new_stream(), avi_extract_stream_metadata(), avi_read_header(), avi_read_packet(), avi_read_seek(), avi_sync(), avi_write_header(), avisynth_create_stream_audio(), avisynth_create_stream_video(), avisynth_read_packet(), avisynth_read_seek(), avr_read_header(), bfi_read_header(), binka_read_header(), binka_read_packet(), bitstream_switching(), bmv_read_header(), bonk_read_header(), bsf_init(), build_open_gop_key_points(), caca_write_header(), caf_write_packet(), caf_write_trailer(), calculate_bitrate(), calculate_mpeg4_bit_rates(), can_seek_to_key_sample(), cdata_read_header(), cdxl_read_packet(), celt_header(), check_stream_max_drift(), choose_chroma_location(), choose_decoder(), cin_read_header(), cine_read_header(), codec2_read_header(), codec2_read_header_common(), codec2_read_packet(), codec2_write_header(), codec2raw_read_header(), codec_close(), compute_display_area(), compute_frame_duration(), compute_muxer_pkt_fields(), compute_pkt_fields(), concat_parse_script(), copy_stream_props(), create_audio_stream(), create_master_playlist(), create_new_audio_stream(), create_rtp_muxer(), create_stream(), create_subcc_streams(), dash_init(), dash_write_packet(), dat_read_packet(), daud_header(), dc1394_read_common(), dcstr_read_header(), dec_enc(), decklink_setup_audio(), decklink_setup_data(), decklink_setup_subtitle(), decklink_setup_video(), decklink_write_audio_packet(), decklink_write_video_packet(), decode_stream_header(), demux_stream_alloc(), derf_read_header(), detect_stream_specific(), dfa_read_header(), dfpwm_read_header(), dhav_read_packet(), dirac_header(), dsf_read_header(), dsf_read_packet(), dshow_add_device(), dss_723_1_read_packet(), dss_read_header(), dtshd_read_header(), dump_attachment(), dump_stream_format(), dump_stream_group(), dump_stream_meta(), dv_assemble_frame(), dv_init_mux(), dvdvideo_audio_stream_add(), dvdvideo_read_packet(), dvdvideo_subp_stream_add(), dvdvideo_video_stream_add(), dxa_read_header(), ea_read_header(), eit_cb(), enable_pcr_generation_for_stream(), enable_tracks(), epaf_read_header(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), evc_read_header(), export_orphan_timecode(), extract_extradata_check(), extract_extradata_init(), fbdev_read_header(), ff_add_attached_pic(), ff_argo_asf_fill_stream(), ff_decklink_write_header(), ff_decklink_write_packet(), ff_find_decoder(), ff_flac_parse_picture(), ff_framehash_write_header(), ff_free_stream(), ff_generate_avci_extradata(), ff_get_bmp_header(), ff_hls_senc_parse_audio_setup_info(), ff_hls_write_stream_info(), ff_iamf_add_audio_element(), ff_id3v2_parse_apic(), ff_id3v2_write_apic(), ff_img_read_header(), ff_img_read_packet(), ff_interleave_add_packet(), ff_interleave_packet_per_dts(), ff_isom_parse_dvcc_dvvc(), ff_load_image(), ff_mov_read_chan(), ff_mov_read_chnl(), ff_mov_read_stsd_entries(), ff_mp4_read_dec_config_descr(), ff_parse_mpeg2_descriptor(), ff_parse_specific_params(), ff_pcm_read_seek(), ff_raw_audio_read_header(), ff_raw_subtitle_read_header(), ff_raw_video_read_header(), ff_replaygain_export_raw(), ff_rfps_calculate(), ff_rm_parse_packet(), ff_rm_read_mdpr_codecdata(), ff_rm_retrieve_cache(), ff_rtp_chain_mux_open(), ff_rtp_parse_open(), ff_rtp_send_aac(), ff_rtp_send_jpeg(), ff_rtp_send_latm(), ff_rtp_send_raw_rfc4175(), ff_sauce_read(), ff_spdif_read_packet(), ff_stream_add_bitstream_filter(), ff_voc_get_packet(), fifo_consumer_thread(), fifo_thread_write_packet(), fill_codec_config(), film_init(), film_read_header(), film_write_header(), film_write_packet(), filter_codec_opts(), find_matching_stream(), find_stream(), fits_read_header(), flac_header(), flac_init(), flac_read_header(), flac_read_timestamp(), flac_write_picture(), flush(), flush_buffered(), flv_check_bitstream(), flv_data_packet(), flv_get_extradata(), flv_read_metabody(), flv_read_packet(), flv_set_video_codec(), flv_update_video_color_info(), force_codec_ids(), framecrc_write_header(), frm_read_header(), frm_read_packet(), fsb_read_header(), fwse_read_header(), g722_read_header(), g723_1_init(), g726_read_header(), g728_read_header(), g729_read_header(), g729_read_packet(), gdigrab_read_header(), gdv_read_header(), genh_read_header(), get_attachment(), get_codec_data(), get_decoder_for_stream(), get_dvb_stream_type(), get_m2ts_stream_type(), get_mimetype(), get_packet_header(), get_packet_lj92(), get_pes_stream_id(), get_private_data(), get_sindex(), get_stream_bit_rate(), gif_read_header(), gsm_read_header(), guess_channel_layout(), guess_pkt_duration(), gxf_compare_field_nb(), gxf_find_lines_index(), gxf_interleave_packet(), gxf_packet(), gxf_write_dv_auxiliary(), gxf_write_header(), gxf_write_media_preamble(), gxf_write_mpeg_auxiliary(), gxf_write_packet(), gxf_write_umf_media_description(), gxf_write_umf_media_dv(), gxf_write_umf_media_mpeg(), handle_file(), has_codec_parameters(), has_decode_delay_been_guessed(), hca_read_header(), hcom_read_header(), hds_write_header(), hds_write_packet(), heif_add_stream(), hevc_parse_sdp_line(), hls_init(), hls_mux_init(), hls_read_packet(), hls_write_header(), hls_write_packet(), hnm_read_header(), hxvs_create_audio_stream(), hxvs_create_video_stream(), iamf_read_header(), idcin_read_header(), iff_read_header(), iff_read_packet(), ifile_open(), ifilter_bind_ist(), ifv_read_header(), ilbc_parse_fmtp(), ilbc_parse_sdp_line(), ilbc_read_header(), imf_read_packet(), init(), init_audio(), init_filters(), init_fps(), init_muxer(), init_pts(), init_stream(), init_video_stream(), interleave_compare_dts(), ipmovie_read_header(), ipu_read_header(), ircam_read_header(), ism_write_header(), ism_write_packet(), iss_read_header(), ist_add(), ist_use(), jacosub_read_header(), jpeg_parse_packet(), jpegxl_anim_read_header(), kmsgrab_read_header(), laf_read_header(), laf_read_packet(), latm_check_bitstream(), lavfi_read_header(), lavfi_read_packet(), lmlm4_read_header(), loas_read_header(), log_slave(), lvf_read_header(), lxf_read_header(), m4sl_cb(), main(), map_auto_audio(), map_auto_video(), map_manual(), match_stream_specifier(), mcc_init(), mcc_read_header(), microdvd_read_header(), mkv_check_bitstream(), mkv_init(), mkv_write_attachments(), mkv_write_tags(), mkv_write_track(), mkv_write_tracks(), mmf_read_header(), modplug_read_header(), mods_read_header(), moflex_read_sync(), mov_build_index(), mov_check_bitstream(), mov_codec_id(), mov_create_dvd_sub_decoder_specific_info(), mov_estimate_video_delay(), mov_finalize_stsd_codec(), mov_finalize_stsd_entry(), mov_fix_index(), mov_get_skip_samples(), mov_init(), mov_init_ttml_writer(), mov_parse_heif_items(), mov_parse_lcevc_streams(), mov_parse_stsd_audio(), mov_parse_stsd_data(), mov_parse_stsd_subtitle(), mov_parse_stsd_video(), mov_read_ares(), mov_read_chapters(), mov_read_clap(), mov_read_colr(), mov_read_covr(), mov_read_dac3(), mov_read_ddts(), mov_read_dec3(), mov_read_dfla(), mov_read_dmlp(), mov_read_dops(), mov_read_dvc1(), mov_read_extradata(), mov_read_fiel(), mov_read_frma(), mov_read_glbl(), mov_read_hdlr(), mov_read_header(), mov_read_kind(), mov_read_lhvc(), mov_read_packet(), mov_read_pcmc(), mov_read_pssh(), mov_read_SA3D(), mov_read_strf(), mov_read_stsd(), mov_read_stss(), mov_read_stts(), mov_read_trak(), mov_read_vpcc(), mov_read_wave(), mov_read_wfex(), mov_write_amve_tag(), mov_write_clli_tag(), mov_write_colr_tag(), mov_write_ftyp_tag(), mov_write_header(), mov_write_identification(), mov_write_mdcv_tag(), mov_write_moov_tag(), mov_write_pssh_tag(), mov_write_SA3D_tag(), mov_write_squashed_packet(), mov_write_squashed_packets(), mov_write_tkhd_tag(), mov_write_video_tag(), mov_write_wfex_tag(), movie_common_init(), movie_config_output_props(), movie_query_formats(), mp3_init(), mp3_parse_vbr_tags(), mp3_read_header(), mpc8_read_header(), mpc_read_header(), mpeg_mux_init(), mpeg_mux_write_packet(), mpeg_parse_packet(), mpegps_read_packet(), mpegts_check_bitstream(), mpegts_find_stream_type(), mpegts_init(), mpegts_push_data(), mpegts_read_header(), mpegts_set_stream_info(), mpegts_write_packet_internal(), mpegts_write_pes(), mpegts_write_pmt(), mpjpeg_read_header(), mpl2_read_header(), mpsub_read_header(), msf_read_header(), msnwc_tcp_read_header(), msp_read_header(), msp_read_packet(), mtaf_read_header(), mtv_read_header(), musx_read_header(), mux_final_stats(), mux_fixup_ts(), mv_read_header(), mxf_add_metadata_stream(), mxf_check_bitstream(), mxf_compute_edit_units_per_packet(), mxf_compute_sample_count(), mxf_get_d10_aes3_packet(), mxf_handle_missing_index_segment(), mxf_init(), mxf_parse_dnxhd_frame(), mxf_parse_ffv1_frame(), mxf_parse_h264_frame(), mxf_parse_jpeg2000_frame(), mxf_parse_mpeg2_frame(), mxf_parse_prores_frame(), mxf_parse_structural_metadata(), mxf_read_seek(), mxf_set_pts(), mxf_write_avc_subdesc(), mxf_write_common_fields(), mxf_write_d10_audio_packet(), mxf_write_ffv1_subdesc(), mxf_write_generic_desc(), mxf_write_generic_picture_desc(), mxf_write_generic_sound_common(), mxf_write_jpeg2000_subdesc(), mxf_write_mpegvideo_local_tags(), mxf_write_packet(), mxf_write_primer_pack(), mxf_write_wav_common(), mxg_read_header(), nal_send(), nc_read_header(), new_stream(), nist_read_header(), nsp_read_header(), nsv_parse_NSVs_header(), nsv_read_chunk(), nut_write_header(), nuv_header(), of_streamcopy(), ogg_buffer_data(), ogg_build_vp8_headers(), ogg_free(), ogg_init(), ogg_write_packet_internal(), ogm_dshow_header(), ogm_header(), old_dirac_header(), old_flac_header(), oma_read_header(), oma_read_seek(), open_audio(), open_codec_context(), open_demux_for_component(), open_input_file(), open_output_file(), open_slave(), open_stream(), open_video(), opt_target(), osq_read_header(), ost_add(), output_packet(), parse_audio_var(), parse_chunk(), parse_dsd_prop(), parse_fmtp(), parse_fmtp_config(), parse_h264_sdp_line(), parse_mca_labels(), parse_media_type(), parse_mpeg1waveformatex(), parse_opus_header(), parse_packet(), parse_strk(), parse_video_info(), parse_video_var(), parse_videoinfoheader2(), parse_vtrk(), pcm_read_header(), pdv_read_header(), pjs_read_header(), pmp_header(), pmt_cb(), pp_bnk_read_header(), print_streams(), probe_codec(), process_frame(), pulse_read_header(), pulse_write_header(), pulse_write_packet(), put_frame(), put_videoinfoheader2(), pva_read_header(), pvf_read_header(), qcp_read_header(), qdm2_parse_config(), qdm2_parse_packet(), qoa_read_header(), qt_rtp_parse_packet(), r3d_read_red1(), r3d_read_reda(), raw_data_read_header(), rawvideo_read_header(), rcwt_read_header(), rdt_parse_packet(), read_desc_chunk(), read_frame(), read_frame_internal(), read_gab2_sub(), read_header(), read_header_gme(), read_header_openmpt(), read_header_vs(), read_index(), read_kuki_chunk(), read_packet(), read_packet_vs(), read_seek(), read_thread(), real_parse_asm_rule(), realtext_read_header(), redspark_read_header(), report_new_stream(), rfc4175_parse_fmtp(), rfc4175_parse_format(), rfc4175_parse_sdp_line(), rka_read_header(), rl2_read_header(), rm_ac3_swap_bytes(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_header(), rm_read_multi(), roq_read_packet(), rpl_read_header(), rpl_read_packet(), rsd_read_header(), rso_read_header(), rtp_hinting_needed(), rtp_mpegts_write_header(), rtp_send_ilbc(), rtp_write_header(), rtp_write_packet(), s337m_read_packet(), sami_read_header(), sap_fetch_packet(), sap_read_header(), sbg_read_header(), sbg_read_packet(), scan_file(), scc_read_header(), scd_read_track(), sdns_read_header(), sdp_parse_fmtp_config_h264(), sdr2_read_header(), sds_read_header(), sdx_read_header(), seek_frame_generic(), seek_test(), seg_write_packet(), segment_mux_init(), select_from_pts_buffer(), select_pcr_streams(), seq_read_header(), ser_read_header(), set_channels(), set_codec_from_probe_data(), set_last_stream_little_endian(), set_max_size(), set_stream_info_from_input_stream(), sga_audio_packet(), sga_video_packet(), show_frame(), show_packet(), show_stream(), siff_parse_vbv1(), simbiosis_imx_read_header(), skeleton_header(), smacker_read_header(), smjpeg_read_header(), smjpeg_write_header(), smjpeg_write_packet(), smush_read_header(), sol_read_header(), sox_read_header(), speex_header(), srt_read_header(), srt_write_header(), stl_read_header(), str_read_packet(), stream_component_close(), stream_component_open(), stream_cycle_channel(), stream_specifier_match(), streamcopy_init(), subviewer1_read_header(), subviewer_read_header(), sup_read_header(), svag_read_header(), svq3_parse_packet(), svs_read_header(), swf_read_packet(), tak_read_header(), tb_unreliable(), tedcaptions_read_header(), theora_header(), thp_read_header(), threedostr_read_header(), threedostr_read_packet(), tmcd_is_referenced(), tmv_read_header(), track_header(), try_decode_frame(), ts_to_samples(), tta_read_header(), ttml_write_header(), txd_read_header(), ty_read_header(), update_initial_timestamps(), update_stream_avctx(), update_stream_extradata(), update_stream_timings(), v4l2_read_header(), vag_read_header(), validate_codec_tag(), vc1t_read_header(), vfw_read_header(), vid_read_packet(), video_decode(), video_decode_example(), decklink_input_callback::VideoInputFrameArrived(), viv_read_packet(), vivo_read_header(), vmd_read_header(), voc_read_packet(), vorbis_header(), vorbis_parse_header(), vp8_header(), vpk_read_header(), vpk_read_seek(), vplayer_read_header(), vqf_read_header(), vqf_read_seek(), wady_read_header(), wavarc_read_header(), wc3_read_header(), webm_chunk_write_packet(), webvtt_read_header(), whip_check_bitstream(), whip_write_packet(), write_adaptation_set(), write_codec_attr(), write_header(), write_image_header(), write_manifest(), write_muxed_file(), write_odml_master(), write_packet(), write_representation(), write_stream_codec(), write_stream_codec_info(), write_stream_data(), write_streamheader(), write_streaminfo(), write_trailer(), wsaud_read_header(), wsaud_read_packet(), wsaud_write_header(), wsd_read_header(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_header(), wve_read_header(), xa_read_header(), xa_read_packet(), xiph_parse_fmtp_pair(), xmd_read_header(), xmv_process_packet_header(), xvag_read_header(), xwma_read_header(), xwma_read_packet(), yop_read_header(), yuv4_read_header(), yuv4_write_header(), and yuv4_write_packet().

Definition at line 769 of file avformat.h.

Referenced by avi_read_close(), avi_read_header(), avi_read_idx1(), avi_read_packet(), avi_read_seek(), avi_sync(), avi_write_header(), build_open_gop_key_points(), caf_write_packet(), caf_write_trailer(), can_seek_to_key_sample(), check_stream_max_drift(), clean_index(), dhav_read_packet(), dhav_read_seek(), enable_pcr_generation_for_stream(), ff_free_stream(), ff_mov_read_stsd_entries(), find_prev_closest_index(), fix_stream_ids(), flac_finish_header(), flac_write_packet(), flush_packet(), get_current_encryption_info(), get_dvb_stream_type(), get_frag_time(), get_m2ts_stream_type(), get_subtitle_pkt(), get_system_header_size(), gxf_compare_field_nb(), gxf_find_lines_index(), gxf_interleave_packet(), gxf_write_header(), gxf_write_media_preamble(), gxf_write_mpeg_auxiliary(), gxf_write_umf_media_mpeg(), heif_add_stream(), ivr_read_header(), ivr_read_packet(), moflex_read_sync(), mov_build_index(), mov_change_extradata(), mov_estimate_video_delay(), mov_finalize_packet(), mov_find_next_sample(), mov_find_reference_track(), mov_fix_index(), mov_free_stream_context(), mov_get_skip_samples(), mov_init(), mov_merge_tts_data(), mov_parse_heif_items(), mov_parse_lcevc_streams(), mov_parse_stsd_data(), mov_read_chapters(), mov_read_covr(), mov_read_ctts(), mov_read_custom(), mov_read_dref(), mov_read_eyes(), mov_read_frma(), mov_read_header(), mov_read_hfov(), mov_read_mdhd(), mov_read_pack(), mov_read_packet(), mov_read_pasp(), mov_read_pcmc(), mov_read_rtmd_track(), mov_read_sbas(), mov_read_sbgp(), mov_read_schm(), mov_read_sdtp(), mov_read_seek(), mov_read_sgpd(), mov_read_sidx(), mov_read_st3d(), mov_read_stco(), mov_read_stps(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_sv3d(), mov_read_tenc(), mov_read_tfdt(), mov_read_timecode_track(), mov_read_tkhd(), mov_read_trak(), mov_read_trun(), mov_read_uuid(), mov_read_vexu_proj(), mov_seek_stream(), mpc_read_header(), mpeg_mux_deinit(), mpeg_mux_end(), mpeg_mux_init(), mpeg_mux_write_packet(), mpegts_deinit(), mpegts_init(), mpegts_insert_pcr_only(), mpegts_set_stream_info(), mpegts_write_flush(), mpegts_write_packet_internal(), mpegts_write_pes(), mpegts_write_pmt(), mxf_compute_edit_unit_byte_count(), mxf_compute_edit_units_per_packet(), mxf_compute_index_tables(), mxf_compute_sample_count(), mxf_handle_missing_index_segment(), mxf_init(), mxf_parse_dnxhd_frame(), mxf_parse_dv_frame(), mxf_parse_ffv1_frame(), mxf_parse_h264_frame(), mxf_parse_jpeg2000_frame(), mxf_parse_mpeg2_frame(), mxf_parse_prores_frame(), mxf_parse_structural_metadata(), mxf_read_packet(), mxf_read_seek(), mxf_set_audio_pts(), mxf_set_current_edit_unit(), mxf_set_pts(), mxf_write_cdci_desc(), mxf_write_ffv1_subdesc(), mxf_write_generic_desc(), mxf_write_generic_picture_desc(), mxf_write_index_table_segment(), mxf_write_jpeg2000_subdesc(), mxf_write_mpegvideo_local_tags(), mxf_write_opatom_body_partition(), mxf_write_package(), mxf_write_packet(), mxf_write_primer_pack(), mxf_write_track(), new_stream(), ni_prepare_read(), nsv_parse_NSVs_header(), nsv_read_chunk(), nsv_read_seek(), ogg_buffer_data(), ogg_compare_granule(), ogg_free(), ogg_init(), ogg_write_header(), ogg_write_packet_internal(), output_packet(), put_system_header(), qt_rtp_parse_packet(), read_gab2_sub(), read_odml_index(), remove_decoded_packets(), rm_read_header(), rm_read_header_old(), rm_read_multi(), rm_read_packet(), seek_subtitle(), select_pcr_streams(), smacker_read_header(), tmcd_is_referenced(), whip_write_packet(), and write_odml_master().

This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.

decoding: set by libavformat encoding: May be set by the caller before avformat_write_header() to provide a hint to the muxer about the desired timebase. In avformat_write_header(), the muxer will overwrite this field with the timebase that will actually be used for the timestamps written into the file (which may or may not be related to the user-provided one, depending on the format).

Examples

decode_filter_audio.c, decode_filter_video.c, mux.c, qsv_transcode.c, remux.c, transcode.c, transcode_aac.c, and vaapi_transcode.c.

Definition at line 783 of file avformat.h.

Referenced by aa_read_header(), add_stream(), amv_init(), amv_write_header(), amv_write_trailer(), av_pkt_dump2(), av_pkt_dump_log2(), avformat_find_stream_info(), avi_read_header(), avi_read_packet(), avi_read_seek(), avi_write_header(), avpriv_set_pts_info(), avpriv_update_cur_dts(), bsf_init(), caca_write_header(), calculate_bitrate(), check_stream_max_drift(), choose_timebase(), compute_frame_duration(), compute_muxer_pkt_fields(), compute_pkt_fields(), concat_read_packet(), copy_stream_props(), correct_input_start_times(), create_rtp_muxer(), create_subcc_streams(), dash_flush(), dash_init(), dash_read_packet(), dash_write_packet(), dec_enc(), decklink_setup_video(), dump_stream_format(), dv_init_mux(), encode_write(), encode_write_frame(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), extract_extradata_init(), ff_configure_buffers_for_index(), ff_framehash_write_header(), ff_get_muxer_ts_offset(), ff_interleave_add_packet(), ff_interleave_packet_per_dts(), ff_mov_init_hinting(), ff_parse_specific_params(), ff_pcm_read_seek(), ff_rfps_add_frame(), ff_rfps_calculate(), ff_rtp_chain_mux_open(), ff_rtp_send_aac(), ff_rtp_send_amr(), ff_rtp_send_xiph(), ff_rtsp_open_transport_ctx(), ff_stream_add_bitstream_filter(), fifo_thread_attempt_recovery(), fifo_thread_write_packet(), fill_all_stream_timings(), fill_timing_for_id3_timestamped_stream(), flac_read_header(), flush_packet(), get_audio_frame(), get_frag_time(), get_subtitle_pkt(), get_timebase(), guess_pkt_duration(), handle_avoid_negative_ts(), handle_file(), hds_write_header(), hds_write_packet(), heif_add_stream(), hls_mux_init(), hls_read_packet(), hls_write_header(), hls_write_packet(), imf_read_packet(), imf_seek(), init_filters(), init_fps(), init_muxer(), init_pts(), init_stream(), interleave_compare_dts(), ism_write_header(), ism_write_packet(), ist_add(), log_packet(), main(), mkv_write_track(), mkv_write_trailer(), mov_calculate_start_and_end_of_other_tracks(), mov_get_dv_codec_tag(), mov_get_skip_samples(), mov_init(), mov_init_ttml_writer(), mov_read_chapters(), mov_read_seek(), mov_read_sidx(), mov_write_emsg_tag(), mov_write_prft_tag(), mov_write_ttml_document_from_queue(), movie_common_init(), movie_config_output_props(), mp3_parse_info_tag(), mp3_parse_vbr_tags(), mpegts_init(), mpegts_write_packet_internal(), mux_fixup_ts(), mux_frames(), mux_id3(), mux_log_debug_ts(), mxf_compute_sample_count(), mxf_handle_missing_index_segment(), mxf_init(), mxf_parse_structural_metadata(), mxf_read_seek(), mxf_set_audio_pts(), mxf_set_current_edit_unit(), next_duration(), ni_prepare_read(), of_stream_init(), ogg_buffer_data(), ogg_build_vp8_headers(), ogg_compare_granule(), ogg_init(), ogg_write_packet_internal(), open_demux_for_component(), open_input_file(), open_output_file(), open_slave(), open_stream(), open_track_resource_context(), opt_target(), ost_add(), output_segment_list(), parse_packet(), pulse_write_packet(), r3d_read_rdvo(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), r3d_seek(), rawvideo_read_header(), read_gab2_sub(), read_header(), read_interval_packets(), read_packet(), read_seek(), read_thread(), real_seek(), report_new_stream(), rl2_read_seek(), rm_write_header(), rtcp_send_sr(), rtp_mpegts_write_header(), rtp_mpegts_write_packet(), rtp_send_ilbc(), rtsp_read_play(), sap_fetch_packet(), sap_read_header(), sap_write_header(), sbg_read_seek2(), seek_frame_internal(), seek_subtitle(), seg_init(), seg_write_packet(), ser_read_header(), set_context_streams_from_tracks(), set_stream_info_from_input_stream(), show_frame(), show_packet(), show_stream(), smush_read_header(), stream_component_open(), stream_has_enough_packets(), streamcopy_init(), swf_write_header(), tb_unreliable(), tee_write_packet(), ts_fixup(), ts_to_samples(), txd_read_header(), update_initial_timestamps(), update_stream_timings(), update_timestamps(), update_wrap_reference(), video_decode_example(), decklink_input_callback::VideoInputFrameArrived(), viv_read_packet(), vqf_read_seek(), webm_chunk_init(), webm_chunk_write_packet(), write_frame(), write_hls_media_playlist(), write_packet(), write_packets_from_bsfs(), write_trailer(), yuv4_read_header(), and yuv4_write_header().

Decoding: pts of the first frame of the stream in presentation order, in stream time base.

Only set this if you are absolutely 100% sure that the value you set it to really is the pts of the first frame. This may be undefined (AV_NOPTS_VALUE).

Note

The ASF header does NOT contain a correct start_time the ASF demuxer must NOT set this.

Definition at line 793 of file avformat.h.

Referenced by aa_read_header(), aax_read_header(), ace_read_header(), acm_read_header(), adp_read_header(), aiff_read_header(), ape_read_header(), aptx_read_header_common(), argo_brp_read_header(), asf_read_ext_stream_properties(), ast_read_header(), avformat_find_stream_info(), avformat_new_stream(), avi_read_header(), avisynth_create_stream_video(), cdxl_read_packet(), correct_input_start_times(), create_audio_stream(), dss_read_header(), dump_stream_format(), ea_read_header(), estimate_timings(), estimate_timings_from_pts(), ff_argo_asf_fill_stream(), ff_img_read_header(), ff_raw_audio_read_header(), ff_raw_subtitle_read_header(), fill_all_stream_timings(), g723_1_init(), gdv_read_header(), gif_read_header(), gxf_header(), hnm_read_header(), hxvs_build_index(), idcin_read_header(), ifv_read_header(), ilbc_read_header(), ipu_read_header(), mov_build_index(), mov_fix_index(), mp3_parse_info_tag(), mp3_read_header(), mpc8_read_header(), mpc_read_header(), mpegts_read_header(), mxf_parse_structural_metadata(), nsv_parse_NSVs_header(), oma_read_header(), opus_packet(), osq_read_header(), parse_chunk(), pdv_read_header(), pp_bnk_read_header(), qoa_read_header(), raw_data_read_header(), read_header(), read_thread(), rka_read_header(), rm_read_header(), rm_read_multi(), sbg_read_header(), sbg_read_packet(), scd_read_track(), seq_read_header(), sga_audio_packet(), sga_video_packet(), show_stream(), simbiosis_imx_read_header(), skeleton_header(), smush_read_header(), str_read_packet(), svs_read_header(), tak_read_header(), tedcaptions_read_header(), tta_read_header(), update_initial_timestamps(), update_stream_timings(), update_timestamps(), vid_read_packet(), vivo_read_header(), vqf_read_header(), wavarc_read_header(), wsvqa_read_header(), wv_read_header(), and xa_read_header().

Decoding: duration of the stream, in stream time base.

If a source file does not specify a duration, but does specify a bitrate, this value will be estimated from bitrate and file size.

Encoding: May be set by the caller before avformat_write_header() to provide a hint to the muxer about the estimated duration.

Definition at line 803 of file avformat.h.

Referenced by aa_read_header(), ace_read_header(), acm_read_header(), adp_read_header(), ads_read_header(), afc_read_header(), aiff_read_header(), ape_read_header(), argo_brp_read_header(), argo_brp_read_packet(), asf_read_ext_stream_properties(), asf_read_stream_properties(), ast_read_header(), avformat_new_stream(), avi_read_header(), avi_write_header(), avisynth_create_stream_audio(), avisynth_create_stream_video(), bfi_read_header(), binka_read_header(), bonk_read_header(), caf_write_trailer(), cdxl_read_packet(), cine_read_header(), dcstr_read_header(), derf_read_header(), dfa_read_header(), dhav_read_packet(), dtshd_read_header(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), ff_argo_asf_fill_stream(), ff_img_read_header(), fill_all_stream_timings(), flac_read_header(), fsb_read_header(), fwse_read_header(), gdv_read_header(), genh_read_header(), gif_read_header(), gxf_header(), handle_file(), has_duration(), hca_read_header(), hxvs_build_index(), init_video_stream(), ipu_read_header(), ivr_read_header(), laf_read_header(), lxf_read_header(), modplug_read_header(), mov_build_index(), mov_finalize_packet(), mov_fix_index(), mov_read_chapters(), mov_read_mdhd(), mov_read_sidx(), mov_read_stts(), mov_read_trun(), mp3_parse_vbr_tags(), mp3_seek(), mpc8_read_header(), mpc_read_header(), msf_read_header(), mtaf_read_header(), mxf_handle_missing_index_segment(), mxf_parse_structural_metadata(), nist_read_header(), nsv_parse_NSVs_header(), of_stream_init(), osq_read_header(), ost_add(), parse_chunk(), parse_video_var(), pdv_read_header(), pmp_header(), pp_bnk_read_header(), qoa_read_header(), r3d_read_rdvo(), read_header(), read_header_gme(), read_header_openmpt(), read_header_vs(), read_packet(), read_pakt_chunk(), read_seek(), redspark_read_header(), rka_read_header(), rm_read_header(), rm_read_multi(), rpl_read_header(), rsd_read_header(), rso_read_header(), sbg_read_header(), sbg_read_packet(), sds_read_header(), ser_read_header(), set_context_streams_from_tracks(), show_stream(), siff_parse_vbv1(), simbiosis_imx_read_header(), smacker_read_header(), smjpeg_read_header(), smush_read_header(), svag_read_header(), svs_read_header(), tak_read_header(), tedcaptions_read_header(), thp_read_header(), threedostr_read_header(), tta_read_header(), update_stream_timings(), vag_read_header(), vc1t_read_header(), vpk_read_header(), wady_read_header(), wsvqa_read_header(), wv_read_header(), wve_read_header(), xmd_read_header(), xmv_process_packet_header(), xvag_read_header(), xwma_read_header(), and yuv4_read_header().

number of frames in this stream if known or 0

Definition at line 805 of file avformat.h.

Referenced by aea_write_trailer(), aiff_read_header(), ape_read_header(), argo_brp_read_header(), avi_read_header(), avisynth_create_stream_video(), bfi_read_header(), cdxl_read_packet(), check_h26x_startcode(), ff_argo_asf_fill_stream(), ff_mov_write_packet(), flac_write_packet(), gdv_read_header(), gif_read_header(), heif_add_stream(), init_video_stream(), ipu_read_header(), mods_read_header(), mov_read_stts(), mov_write_packet(), mv_read_header(), parse_audio_var(), parse_chunk(), parse_video_var(), pdv_read_header(), pdv_read_packet(), pmp_header(), read_header(), read_index(), read_pakt_chunk(), ser_read_header(), set_context_streams_from_tracks(), show_stream(), siff_parse_vbv1(), simbiosis_imx_read_header(), smush_read_header(), thp_read_header(), track_header(), write_packet(), write_trailer(), and wsvqa_read_header().

Stream disposition - a combination of AV_DISPOSITION_* flags.

• demuxing: set by libavformat when creating the stream or in avformat_find_stream_info().
• muxing: may be set by the caller before avformat_write_header().

Definition at line 813 of file avformat.h.

Referenced by add_metadata_from_renditions(), av_find_best_stream(), av_find_default_stream_index(), avformat_find_stream_info(), compute_muxer_pkt_fields(), dump_stream_format(), dvdvideo_audio_stream_add(), dvdvideo_subp_stream_add(), enable_tracks(), ff_add_attached_pic(), ff_parse_mpeg2_descriptor(), flac_init(), flac_write_packet(), iamf_read_header(), is_cover_image(), ist_add(), map_auto_audio(), map_auto_video(), match_stream_specifier(), mkv_write_track(), mkv_write_tracks(), mov_parse_heif_items(), mov_parse_tiles(), mov_read_chapters(), mov_read_kind(), mov_read_lhvc(), mov_read_SAND(), mov_read_tkhd(), mov_write_isml_manifest(), mov_write_track_kinds(), mov_write_video_tag(), mpegts_write_pmt(), open_demux_for_component(), parse_chunks(), set_disposition_bits(), set_dispositions(), set_stream_info_from_input_stream(), show_stream(), stream_has_enough_packets(), stream_specifier_match(), webvtt_read_header(), and write_streaminfo().

Selects which packets can be discarded at will and do not need to be demuxed.

Examples

qsv_decode.c.

Definition at line 815 of file avformat.h.

Referenced by av_find_default_stream_index(), av_read_frame(), avi_sync(), correct_input_start_times(), eit_cb(), find_stream(), flv_read_packet(), get_subtitle_pkt(), hls_read_header(), ist_add(), ist_use(), main(), mov_change_extradata(), mov_read_chapters(), mov_read_packet(), mov_read_stts(), movie_common_init(), mpegps_read_packet(), mpegts_push_data(), playlist_needed(), probe_file(), read_frame_internal(), read_thread(), recheck_discard_flags(), rm_read_packet(), stream_component_close(), and stream_component_open().

sample aspect ratio (0 if unknown)

• encoding: Set by user.
• decoding: Set by libavformat.

Definition at line 822 of file avformat.h.

Referenced by asf_read_header(), av_guess_sample_aspect_ratio(), avformat_find_stream_info(), avformat_new_stream(), avi_read_header(), avi_write_header(), avisynth_create_stream_video(), compute_display_area(), copy_stream_props(), create_rtp_muxer(), dash_init(), decode_stream_header(), dfa_read_header(), dirac_header(), dump_stream_format(), ff_framehash_write_header(), ff_rtp_chain_mux_open(), has_codec_parameters(), hds_write_header(), hls_mux_init(), init_muxer(), ism_write_header(), ist_add(), lavfi_read_header(), mkv_write_track_video(), mov_read_tkhd(), mov_read_trak(), mov_write_tkhd_tag(), mov_write_trak_tag(), msp_read_header(), nuv_header(), of_stream_init(), parse_video_var(), put_videoinfoheader2(), rtp_mpegts_write_header(), smacker_read_header(), streamcopy_init(), theora_header(), vp8_header(), write_streamheader(), yop_read_header(), yuv4_read_header(), and yuv4_write_header().

Definition at line 824 of file avformat.h.

Referenced by add_metadata_from_renditions(), add_stream_to_programs(), aea_read_header(), aea_write_header(), ape_tag_read_field(), asf_read_header(), asf_read_picture(), avi_extract_stream_metadata(), avi_read_tag(), avi_write_header(), bitstream_switching(), cine_read_header(), concat_parse_script(), copy_meta(), copy_metadata(), copy_stream_props(), dash_read_header(), decode_info_header(), dump_attachment(), dump_stream_format(), dump_stream_meta(), dvdvideo_audio_stream_add(), dvdvideo_subp_stream_add(), export_orphan_timecode(), ff_flac_parse_picture(), ff_free_stream(), ff_id3v2_parse_apic(), ff_id3v2_write_apic(), ff_metadata_conv_ctx(), ff_parse_mpeg2_descriptor(), ff_vorbis_stream_comment(), ff_vorbis_update_metadata(), find_compressor(), flac_write_picture(), get_attachment(), get_mimetype(), gxf_write_header(), heif_add_stream(), hls_mux_init(), hls_read_header(), hls_read_packet(), iff_read_header(), match_stream_specifier(), mcc_read_header(), mkv_write_attachments(), mkv_write_stereo_mode(), mkv_write_tags(), mkv_write_track(), mkv_write_track_video(), mov_init(), mov_parse_stsd_audio(), mov_parse_stsd_data(), mov_parse_stsd_video(), mov_read_hdlr(), mov_read_header(), mov_read_mdhd(), mov_read_rtmd_track(), mov_write_hdlr_tag(), mov_write_header(), mov_write_isml_manifest(), mov_write_SA3D_tag(), mov_write_tmcd_tag(), mov_write_track_metadata(), move_metadata(), mp3_parse_info_tag(), mpegts_write_pmt(), mxf_add_metadata_stream(), mxf_init(), mxf_init_timecode(), mxf_parse_physical_source_package(), mxf_parse_structural_metadata(), mxf_write_header_metadata_sets(), of_add_attachments(), of_add_metadata(), ogg_build_vp8_headers(), ogg_init(), parse_chunks(), parse_dsd_prop(), parse_mca_labels(), parse_timecode_in_framenum_format(), r3d_read_red1(), read_gab2_sub(), read_header(), scd_read_track(), set_encoder_id(), set_stream_info_from_input_stream(), show_stream(), stream_specifier_match(), ttml_write_header(), vorbis_header(), write_adaptation_set(), write_representation(), write_streaminfo(), write_table_entries_attrib(), and write_table_redirector_legacy_attrib().

Average framerate.

• demuxing: May be set by libavformat when creating the stream or in avformat_find_stream_info().
• muxing: May be set by the caller before avformat_write_header().

Definition at line 833 of file avformat.h.

Referenced by add_video_stream(), amf_parse_object(), apv_read_header(), asf_read_ext_stream_properties(), av1_read_header(), av_guess_frame_rate(), avformat_find_stream_info(), avi_read_header(), avisynth_create_stream_video(), compute_frame_duration(), copy_stream_props(), create_stream(), dash_init(), dash_write_packet(), dc1394_read_common(), defined_frame_rate(), dhav_read_packet(), dshow_add_device(), dump_stream_format(), dvdvideo_video_stream_add(), enable_pcr_generation_for_stream(), evc_read_header(), fbdev_read_header(), ff_img_read_header(), ff_raw_video_read_header(), ff_rfps_calculate(), ff_rm_read_mdpr_codecdata(), gdigrab_read_header(), gif_read_header(), guess_pkt_duration(), heif_add_stream(), init_convert_timestamp(), init_video_stream(), ist_dts_update(), ist_use(), lavfi_read_header(), mcc_init(), mkv_write_track(), mov_check_timecode_track(), mov_create_timecode_track(), mov_parse_stsd_data(), mov_read_header(), mov_read_timecode_track(), mov_write_dvc1_structs(), mov_write_tmcd_tag(), mov_write_uuidprof_tag(), mxf_init(), mxf_parse_structural_metadata(), nuv_header(), of_stream_init(), parse_timecode_in_framenum_format(), parse_video_var(), pdv_read_header(), print_frame_side_data(), put_videoinfoheader2(), r3d_read_rdvo(), r3d_read_red1(), r3d_read_redv(), r3d_seek(), read_header(), rfc4175_parse_format(), show_stream(), smush_read_header(), streamcopy_init(), txd_read_header(), v4l2_read_header(), v4l2_set_parameters(), vfw_read_header(), write_adaptation_set(), write_codec_attr(), write_streaminfo(), and yuv4_read_header().

For streams with AV_DISPOSITION_ATTACHED_PIC disposition, this packet will contain the attached picture.

decoding: set by libavformat, must not be modified by the caller. encoding: unused

Definition at line 842 of file avformat.h.

Referenced by ff_add_attached_pic(), ff_free_stream(), ff_id3v2_parse_apic(), id3_has_changed_values(), mov_read_chapters(), and mov_read_covr().

Flags indicating events happening on the stream, a combination of AVSTREAM_EVENT_FLAG_*.

• demuxing: may be set by the demuxer in avformat_open_input(), avformat_find_stream_info() and av_read_frame(). Flags must be cleared by the user once the event has been handled.
• muxing: may be set by the user after avformat_write_header(). to indicate a user-triggered event. The muxer will clear the flags for events it has handled in av_[interleaved]_write_frame().

Definition at line 855 of file avformat.h.

Referenced by decode_info_header(), dump_stream_meta(), ff_vorbis_stream_comment(), hls_read_packet(), map_auto_audio(), map_auto_video(), and read_frame_internal().

Real base framerate of the stream.

This is the lowest framerate with which all timestamps can be represented accurately (it is the least common multiple of all framerates in the stream). Note, this value is just a guess! For example, if the time base is 1/90000 and all frames have either approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1.

Definition at line 878 of file avformat.h.

Referenced by add_video_stream(), av_guess_frame_rate(), avformat_find_stream_info(), compute_frame_duration(), copy_stream_props(), decode_info_header(), dshow_add_device(), dump_stream_format(), dvdvideo_video_stream_add(), ff_img_read_header(), ff_rfps_calculate(), ff_rm_read_mdpr_codecdata(), init_video_stream(), lavfi_read_header(), mkv_write_track(), mov_read_trak(), movie_config_output_props(), mxf_init(), mxf_parse_structural_metadata(), nuv_header(), ogg_build_vp8_headers(), r3d_read_red1(), reopen_demux_for_component(), show_stream(), streamcopy_init(), v4l2_set_parameters(), decklink_input_callback::VideoInputFrameArrived(), and write_streaminfo().

Number of bits in timestamps.

Used for wrapping control.

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

Definition at line 887 of file avformat.h.

Referenced by avpriv_set_pts_info(), compute_pkt_fields(), hls_write_header(), open_demux_for_component(), seg_init(), set_context_streams_from_tracks(), set_stream_info_from_input_stream(), ts_discontinuity_detect(), ts_fixup(), update_wrap_reference(), webm_chunk_init(), and wrap_timestamp().