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faq: suggest the concat filter.

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Nicolas George 2012-07-23 15:02:57 +02:00
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doc/faq.texi
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@ -252,6 +252,15 @@ the other; it can be done using the
@anchor{How can I concatenate video files} @anchor{How can I concatenate video files}
@section How can I concatenate video files? @section How can I concatenate video files?
There are several solutions, depending on the exact circumstances.
@subsection Concatenating using filters
FFmpeg has a @url{http://ffmpeg.org/ffmpeg.html#concat-1, @code{concat}}
filter designed specifically for that, with examples in the documentation.
@subsection Concatenating at the file level
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to concatenate A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to concatenate
video by merely concatenating the files them. video by merely concatenating the files them.
@ -291,6 +300,8 @@ cat intermediate1.mpg intermediate2.mpg |\
ffmpeg -f mpeg -i - -qscale:v 2 -c:v mpeg4 -acodec libmp3lame -q:a 4 output.avi ffmpeg -f mpeg -i - -qscale:v 2 -c:v mpeg4 -acodec libmp3lame -q:a 4 output.avi
@end example @end example
@subsection Concatenating using raw audio and video
Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also
allow concatenation, and the transcoding step is almost lossless. allow concatenation, and the transcoding step is almost lossless.
When using multiple yuv4mpegpipe(s), the first line needs to be discarded When using multiple yuv4mpegpipe(s), the first line needs to be discarded