avidemux 2.6 and TS recordings

Tom Evans tevans.uk at googlemail.com
Fri Feb 1 12:16:28 UTC 2013

On Sat, Jan 26, 2013 at 1:57 PM, Andrew Johnson <daeron at optushome.com.au> wrote:
>   Are there any tools left in the ports for re-muxing TS recordings?
>   I had visions of using GOPchop to quickly edit some recordings from the digital TV but there seems to be no tools in the FreeBSD ports to either (quickly) re-mux TS recordings into mpeg, or to (painfully slowly) convert (decode & encode) TS recordings into mpeg.
>   ffmpeg wants to decode & encode, but it doesn't seem to honour all the error correction options in a TS steam and has trouble keeping audio sync.
>   The Avidemux portal suggests they've kept working on the TS sync issue with the 2.6 and 2.6.1 versions but its 2.5.6 that's in the ports.

What went wrong with ffmpeg?

ffmpeg -i stream.ts -c:v copy -c:a copy out.mp4

If you find a sample that does not keep audio sync, the ffmpeg
developers would want to see it. Bear in mind that you cannot fix
audio sync issues without re-encoding the audio, eg:

ffmpeg -i stream.ts -c:v copy -c:a libfaac -filter:a asyncts out.mp4



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