@@ -942,6 +942,15 @@ audio packets.

 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"

 @end example

+

+@item

+As below, but select only stream @code{a:1} for the audio output. Note

+that a second level escaping must be performed, as ":" is a special

+character used to separate options.

+@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:1\']out.aac"

+@end example

 @end itemize

 Note: some codecs may need different options depending on the output format;