[FFmpeg-cvslog] doc/muxers: add elaborated example for the tee muxer
Stefano Sabatini
git at videolan.org
Wed Aug 21 17:50:46 CEST 2013
ffmpeg | branch: master | Stefano Sabatini <stefasab at gmail.com> | Sat Aug 3 14:05:13 2013 +0200| [71c5f9d29c9ed9cbad3f88fe5ef8098bdb4b4859] | committer: Stefano Sabatini
doc/muxers: add elaborated example for the tee muxer
The example shows how to combine bsfs and select options.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=71c5f9d29c9ed9cbad3f88fe5ef8098bdb4b4859
---
doc/muxers.texi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/doc/muxers.texi b/doc/muxers.texi
index c9c4416..4fa9f11 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -886,6 +886,17 @@ ffmpeg -i ... -c:v libx264 -c:a mp2 -f tee -map 0:v -map 0:a
"archive-20121107.mkv|[f=mpegts]udp://10.0.1.255:1234/"
@end example
+Example: use @command{ffmpeg} to encode the input, and send the output
+to three different destinations. The @code{dump_extra} bitstream
+filter is used to add extradata information to all the output video
+keyframes packets, as requested by the MPEG-TS format. The select
+option is applied to @file{out.aac} in order to make it contain only
+audio packets.
+ at example
+ffmpeg -i ... -map 0 -flags +global_header -c:v libx264 -c:a aac -strict experimental
+ -f tee "[bsfs/v=dump_extra]out.ts|[movflags=+faststart]out.mp4|[select=a]out.aac"
+ at end example
+
Note: some codecs may need different options depending on the output format;
the auto-detection of this can not work with the tee muxer. The main example
is the @option{global_header} flag.
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