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FFmpeg
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Functions | |
| unsigned | avformat_version (void) |
| Return the LIBAVFORMAT_VERSION_INT constant. More... | |
| const char * | avformat_configuration (void) |
| Return the libavformat build-time configuration. More... | |
| const char * | avformat_license (void) |
| Return the libavformat license. More... | |
| int | avformat_network_init (void) |
| Do global initialization of network libraries. More... | |
| int | avformat_network_deinit (void) |
| Undo the initialization done by avformat_network_init. More... | |
| const AVOutputFormat * | av_muxer_iterate (void **opaque) |
| Iterate over all registered muxers. More... | |
| const AVInputFormat * | av_demuxer_iterate (void **opaque) |
| Iterate over all registered demuxers. More... | |
| AVFormatContext * | avformat_alloc_context (void) |
| Allocate an AVFormatContext. More... | |
| void | avformat_free_context (AVFormatContext *s) |
| Free an AVFormatContext and all its streams. More... | |
| const AVClass * | avformat_get_class (void) |
| Get the AVClass for AVFormatContext. More... | |
| const AVClass * | av_stream_get_class (void) |
| Get the AVClass for AVStream. More... | |
| AVStream * | avformat_new_stream (AVFormatContext *s, const struct AVCodec *c) |
| Add a new stream to a media file. More... | |
| AVProgram * | av_new_program (AVFormatContext *s, int id) |
Functions for querying libavformat capabilities, allocating core structures, etc.
| unsigned avformat_version | ( | void | ) |
| const char* avformat_configuration | ( | void | ) |
| const char* avformat_license | ( | void | ) |
| int avformat_network_init | ( | void | ) |
Do global initialization of network libraries.
This is optional, and not recommended anymore.
This functions only exists to work around thread-safety issues with older GnuTLS or OpenSSL libraries. If libavformat is linked to newer versions of those libraries, or if you do not use them, calling this function is unnecessary. Otherwise, you need to call this function before any other threads using them are started.
This function will be deprecated once support for older GnuTLS and OpenSSL libraries is removed, and this function has no purpose anymore.
Definition at line 558 of file utils.c.
Referenced by main().
| int avformat_network_deinit | ( | void | ) |
Undo the initialization done by avformat_network_init.
Call it only once for each time you called avformat_network_init.
Definition at line 570 of file utils.c.
Referenced by do_exit(), ffmpeg_cleanup(), and main().
| const AVOutputFormat* av_muxer_iterate | ( | void ** | opaque | ) |
Iterate over all registered muxers.
| opaque | a pointer where libavformat will store the iteration state. Must point to NULL to start the iteration. |
Definition at line 577 of file allformats.c.
Referenced by av_guess_format(), format_child_class_iterate(), show_format_opts(), and show_formats_devices().
| const AVInputFormat* av_demuxer_iterate | ( | void ** | opaque | ) |
Iterate over all registered demuxers.
| opaque | a pointer where libavformat will store the iteration state. Must point to NULL to start the iteration. |
Definition at line 598 of file allformats.c.
Referenced by av_find_input_format(), av_probe_input_format3(), ff_img_read_header(), format_child_class_iterate(), hls_read_header(), LLVMFuzzerTestOneInput(), print_times(), probe(), show_format_opts(), and show_formats_devices().
| AVFormatContext* avformat_alloc_context | ( | void | ) |
Allocate an AVFormatContext.
avformat_free_context() can be used to free the context and everything allocated by the framework within it.
Definition at line 166 of file options.c.
Referenced by avformat_alloc_output_context2(), avformat_open_input(), dash_init(), ff_alloc_input_device_context(), ff_rtp_chain_mux_open(), ff_wms_parse_sdp_a_line(), hds_write_header(), hls_read_header(), ifile_open(), init_fps(), ism_write_header(), LLVMFuzzerTestOneInput(), main(), mov_finalize_stsd_codec(), mpegts_init(), open_file(), open_input_file(), open_output_file(), open_track_resource_context(), rdt_init(), read_gab2_sub(), read_thread(), reopen_demux_for_component(), rtp_mpegts_write_header(), and sap_read_header().
| void avformat_free_context | ( | AVFormatContext * | s | ) |
Free an AVFormatContext and all its streams.
| s | context to free |
Definition at line 102 of file avformat.c.
Referenced by avformat_alloc_context(), avformat_alloc_output_context2(), avformat_close_input(), avformat_open_input(), close_slave(), dash_free(), fc_close(), ff_alloc_input_device_context(), ff_mov_close_hinting(), ff_mov_generate_squashed_ttml_packet(), ff_rtp_chain_mux_open(), ff_rtsp_undo_setup(), fifo_deinit(), finish(), hds_free(), hls_deinit(), hls_read_header(), ifile_open(), ism_free(), list_devices_for_context(), main(), mov_read_close(), mpegts_deinit(), open_output_file(), open_track_resource_context(), reopen_demux_for_component(), rtp_mpegts_write_close(), rtp_mpegts_write_header(), run_test(), sap_write_close(), seg_free(), segment_start(), webm_chunk_deinit(), and write_muxed_file().
| const AVClass* avformat_get_class | ( | void | ) |
Get the AVClass for AVFormatContext.
It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.
Definition at line 205 of file options.c.
Referenced by ifile_open(), opt_default(), show_format_opts(), show_help_default(), and validate_enc_avopt().
| const AVClass* av_stream_get_class | ( | void | ) |
It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.
| AVStream* avformat_new_stream | ( | AVFormatContext * | s, |
| const struct AVCodec * | c | ||
| ) |
Add a new stream to a media file.
When demuxing, it is called by the demuxer in read_header(). If the flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also be called in read_packet().
When muxing, should be called by the user before avformat_write_header().
User is required to call avformat_free_context() to clean up the allocation by avformat_new_stream().
| s | media file handle |
| c | unused, does nothing |
Referenced by aa_read_header(), aax_read_header(), ac4_read_header(), ace_read_header(), acm_read_header(), add_dstream(), add_stream(), add_video_stream(), adp_read_header(), ads_read_header(), adts_aac_read_header(), adx_read_header(), aea_read_header(), afc_read_header(), aiff_read_header(), aix_read_header(), apac_read_header(), apc_read_header(), ape_read_header(), ape_tag_read_field(), apng_read_header(), aptx_read_header_common(), aqt_read_header(), argo_brp_read_header(), asf_read_stream_properties(), ass_read_header(), ast_read_header(), audio_read_header(), av1_read_header(), avi_read_header(), avif_add_stream(), avisynth_create_stream(), avr_read_header(), avs_read_packet(), bfi_read_header(), binka_read_header(), bmv_read_header(), bonk_read_header(), cdata_read_header(), cdxl_read_packet(), cin_read_header(), cine_read_header(), codec2_read_header(), codec2raw_read_header(), concat_parse_script(), create_audio_stream(), create_new_audio_stream(), create_stream(), create_subcc_streams(), dash_init(), dat_read_packet(), daud_header(), dc1394_read_common(), dcstr_read_header(), dec_enc(), decode_main_header(), derf_read_header(), dfa_read_header(), dfpwm_read_header(), dhav_read_packet(), dsf_read_header(), dshow_add_device(), dss_read_header(), dtshd_read_header(), dxa_read_header(), ea_read_header(), eit_cb(), epaf_read_header(), evc_read_header(), fbdev_read_header(), ff_add_attached_pic(), ff_decklink_read_header(), ff_img_read_header(), ff_raw_audio_read_header(), ff_raw_subtitle_read_header(), ff_raw_video_read_header(), ff_rtp_chain_mux_open(), ff_spdif_read_packet(), ff_stream_clone(), film_read_header(), fits_read_header(), flac_read_header(), frm_read_header(), fsb_read_header(), fwse_read_header(), g722_read_header(), g723_1_init(), g726_read_header(), g729_read_header(), gdigrab_read_header(), gdv_read_header(), genh_read_header(), get_audio_config(), get_sindex(), get_video_config(), gif_read_header(), grab_read_header(), gsm_read_header(), hca_read_header(), hcom_read_header(), hds_write_header(), hls_mux_init(), hnm_read_header(), idcin_read_header(), iec61883_read_header(), iff_read_header(), ifv_read_header(), ilbc_read_header(), init_audio(), init_fps(), init_stream(), init_video_stream(), initialize_fifo_tst_muxer_chain(), ipmovie_read_header(), ipu_read_header(), ircam_read_header(), ism_write_header(), iss_read_header(), ivr_read_header(), jacosub_read_header(), jpegxl_anim_read_header(), kmsgrab_read_header(), laf_read_header(), lavfi_read_header(), lmlm4_read_header(), loas_read_header(), lrc_read_header(), lvf_read_header(), lxf_read_header(), main(), match_streams_one_to_one(), mcc_read_header(), microdvd_read_header(), mmf_read_header(), modplug_read_header(), mods_read_header(), moflex_read_sync(), mov_init_ttml_writer(), mov_read_trak(), mp3_read_header(), mpc8_read_header(), mpc_read_header(), mpegps_read_packet(), mpegts_init(), mpegts_push_data(), mpegts_read_header(), mpegts_set_stream_info(), mpjpeg_read_header(), mpl2_read_header(), mpsub_read_header(), msf_read_header(), msnwc_tcp_read_header(), msp_read_header(), mtaf_read_header(), mtv_read_header(), musx_read_header(), mv_read_header(), mxf_add_metadata_stream(), mxf_parse_structural_metadata(), mxg_read_header(), nc_read_header(), new_stream(), nist_read_header(), nsp_read_header(), nsv_parse_NSVs_header(), nuv_header(), ogg_new_stream(), oma_read_header(), open_demux_for_component(), open_output_file(), osq_read_header(), ost_add(), parse_chunk(), parse_strk(), parse_vtrk(), pcm_read_header(), pdv_read_header(), pjs_read_header(), pmp_header(), pmt_cb(), pp_bnk_read_header(), pulse_read_header(), pva_read_header(), pvf_read_header(), qcp_read_header(), qoa_read_header(), r3d_read_red1(), r3d_read_reda(), raw_data_read_header(), rawvideo_read_header(), read_desc_chunk(), read_frame(), read_header(), read_header_gme(), read_header_openmpt(), read_header_vs(), read_packet(), realtext_read_header(), redspark_read_header(), rka_read_header(), rl2_read_header(), rm_read_header(), rm_read_header_old(), rm_read_multi(), roq_read_packet(), rpl_read_header(), rsd_read_header(), rso_read_header(), rtp_mpegts_write_header(), s337m_read_packet(), sami_read_header(), sap_fetch_packet(), sap_read_header(), sbg_read_header(), scc_read_header(), scd_read_track(), sdns_read_header(), sdr2_read_header(), sds_read_header(), sdx_read_header(), seq_read_header(), ser_read_header(), sga_audio_packet(), sga_video_packet(), siff_parse_vbv1(), simbiosis_imx_read_header(), smacker_read_header(), smjpeg_read_header(), smush_read_header(), sol_read_header(), sox_read_header(), srt_read_header(), stl_read_header(), str_read_packet(), subviewer1_read_header(), subviewer_read_header(), sup_read_header(), svag_read_header(), svs_read_header(), swf_read_packet(), tak_read_header(), tedcaptions_read_header(), thp_read_header(), threedostr_read_header(), tmv_read_header(), track_header(), tta_read_header(), txd_read_header(), ty_read_header(), update_streams_from_subdemuxer(), v4l2_read_header(), vag_read_header(), vc1t_read_header(), vfw_read_header(), vid_read_packet(), vivo_read_header(), vmd_read_header(), voc_read_packet(), vpk_read_header(), vplayer_read_header(), vqf_read_header(), wady_read_header(), wavarc_read_header(), wc3_read_header(), webvtt_read_header(), write_muxed_file(), wsaud_read_header(), wsd_read_header(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_header(), wve_read_header(), xa_read_header(), xmd_read_header(), xmv_process_packet_header(), xvag_read_header(), xwma_read_header(), yop_read_header(), and yuv4_read_header().
| AVProgram* av_new_program | ( | AVFormatContext * | s, |
| int | id | ||
| ) |
Definition at line 281 of file avformat.c.
Referenced by dash_read_header(), hls_read_header(), of_add_programs(), pat_cb(), and sdt_cb().
1.8.17