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| author | Vignesh Venkatasubramanian <vigneshv@google.com> | 2015-03-30 14:46:10 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-04-07 15:08:59 +0200 |
| commit | 6fd300ac6c2c3871736ce0e6df95603255004dc6 (patch) | |
| tree | c158a948981bfa1db551a540c61157d3fe0f417c /doc/muxers.texi | |
| parent | c4b2017ba66e1623da9f527704c61c86a6e74844 (diff) | |
lavf: Add support for WebM Live Muxing
This patch adds support for WebM Live Muxing by adding a new WebM
Chunk muxer. It writes out live WebM Chunks which can be used for
playback using Live DASH Clients.
Please see muxers.texi for sample usage.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'doc/muxers.texi')
| -rw-r--r-- | doc/muxers.texi | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/doc/muxers.texi b/doc/muxers.texi index f0ca730691..335f093aaa 100644 --- a/doc/muxers.texi +++ b/doc/muxers.texi @@ -1268,4 +1268,47 @@ ffmpeg -f webm_dash_manifest -i video1.webm \ manifest.xml @end example +@section webm_chunk + +WebM Live Chunk Muxer. + +This muxer writes out WebM headers and chunks as separate files which can be +consumed by clients that support WebM Live streams via DASH. + +@subsection Options + +This muxer supports the following options: + +@table @option +@item chunk_start_index +Index of the first chunk (defaults to 0). + +@item header +Filename of the header where the initialization data will be written. + +@item audio_chunk_duration +Duration of each audio chunk in milliseconds (defaults to 5000). +@end table + +@subsection Example +@example +ffmpeg -f v4l2 -i /dev/video0 \ + -f alsa -i hw:0 \ + -map 0:0 \ + -c:v libvpx-vp9 \ + -s 640x360 -keyint_min 30 -g 30 \ + -f webm_chunk \ + -header webm_live_video_360.hdr \ + -chunk_start_index 1 \ + webm_live_video_360_%d.chk \ + -map 1:0 \ + -c:a libvorbis \ + -b:a 128k \ + -f webm_chunk \ + -header webm_live_audio_128.hdr \ + -chunk_start_index 1 \ + -audio_chunk_duration 1000 \ + webm_live_audio_128_%d.chk +@end example + @c man end MUXERS |