A comma separated list of short names for the format.

New names may be appended with a minor bump.

Definition at line 548 of file avformat.h.

Referenced by av_dump_format(), av_find_input_format(), avformat_find_stream_info(), avformat_open_input(), compute_pkt_fields(), estimate_timings(), format_to_name(), is_realtime(), open_input_stream(), print_times(), probe(), read_thread(), set_codec_from_probe_data(), show_format(), show_formats(), and show_help_demuxer().

Descriptive name for the format, meant to be more human-readable than name.

You should use the NULL_IF_CONFIG_SMALL() macro to define it.

Definition at line 555 of file avformat.h.

Referenced by show_format(), show_formats(), and show_help_demuxer().

Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS.

Definition at line 562 of file avformat.h.

Referenced by av_probe_input_format3(), av_read_frame(), avformat_close_input(), avformat_open_input(), dump_stream_format(), estimate_timings(), img_read_header(), init_input(), print_times(), probe(), process_input(), read_frame_internal(), read_thread(), seek_frame_internal(), and show_stream().

If extensions are defined, then no probe is done.

You should usually not use extension format guessing because it is not reliable enough

Definition at line 569 of file avformat.h.

Referenced by av_probe_input_format3(), and show_help_demuxer().

Definition at line 571 of file avformat.h.

AVClass for the private context.

Definition at line 573 of file avformat.h.

Referenced by avformat_free_context(), avformat_open_input(), format_child_class_next(), format_child_next(), open_input_file(), show_format_opts(), and show_help_demuxer().

Definition at line 582 of file avformat.h.

Referenced by av_iformat_next(), and av_register_input_format().

Raw demuxers store their codec ID here.

Definition at line 587 of file avformat.h.

Referenced by adts_aac_read_header(), adx_read_header(), ff_raw_audio_read_header(), ff_raw_data_read_header(), ff_raw_video_read_header(), gsm_read_header(), loas_read_header(), pcm_read_header(), and rawvideo_read_header().

Size of private data so that it can be allocated in the wrapper.

Definition at line 592 of file avformat.h.

Referenced by avformat_open_input().

Tell if a given file has a chance of being parsed as this format.

The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes big so you do not have to check for that unless you need more.

Definition at line 599 of file avformat.h.

Referenced by av_probe_input_format3(), and probe().

Read the format header and initialize the AVFormatContext structure.

Return 0 if OK. Only used in raw format right now. 'avformat_new_stream' should be called to create new streams.

Definition at line 606 of file avformat.h.

Referenced by av_demuxer_open(), and avformat_open_input().

Read one packet and put it in 'pkt'.

pts and flags are also set. 'avformat_new_stream' can be called only if the flag AVFMTCTX_NOHEADER is used and only in the calling thread (not in a background thread).

Returns

0 on success, < 0 on error. When returning an error, pkt must not have been allocated or must be freed before returning

Definition at line 617 of file avformat.h.

Referenced by ff_read_packet().

Close the stream.

The AVFormatContext and AVStreams are not freed by this function

Definition at line 623 of file avformat.h.

Referenced by avformat_close_input().

Seek to a given timestamp relative to the frames in stream component stream_index.

Parameters

stream_index Must not be -1.

flags Selects which direction should be preferred if no exact match is available.

Returns

>= 0 on success (but not necessarily the new offset)

Definition at line 633 of file avformat.h.

Referenced by av_seek_frame(), avformat_seek_file(), open_input_stream(), seek_frame_generic(), and seek_frame_internal().

Get the next timestamp in stream[stream_index].time_base units.

Returns

the timestamp or AV_NOPTS_VALUE if an error occurred

Definition at line 640 of file avformat.h.

Referenced by avformat_seek_file(), ff_seek_frame_binary(), and seek_frame_internal().

Start/resume playing - only meaningful if using a network-based format (RTSP).

Definition at line 647 of file avformat.h.

Referenced by av_read_play().

Pause playing - only meaningful if using a network-based format (RTSP).

Definition at line 653 of file avformat.h.

Referenced by av_read_pause().

Seek to timestamp ts.

Seeking will be done so that the point from which all active streams can be presented successfully will be closest to ts and within min/max_ts. Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.

Definition at line 661 of file avformat.h.

Referenced by av_seek_frame(), and avformat_seek_file().

Returns device list with it properties.

See Also

avdevice_list_devices() for more details.

Definition at line 667 of file avformat.h.

Referenced by avdevice_list_devices().