[FFmpeg-user] probesize

JULIAN GARDNER joolzg at btinternet.com
Fri May 25 15:41:13 CEST 2012

> From: Mike Scheutzow <mike.scheutzow at alcatel-lucent.com>
>To: FFmpeg user questions and RTFMs <ffmpeg-user at ffmpeg.org> 
>Sent: Friday, 25 May 2012, 14:23
>Subject: Re: [FFmpeg-user] probesize
>> I have some streams in h264/aac and i have had to double the
>> probesize value to get ffmpeg to recongise the audio/video correctly.
>> As this is a MPEG-TS container and I know the values of the
>> audio/video pids and their formats is there a way via the commandline
>> to tell ffmpeg this info without going through the probing?
>> joolz
>You have been on this list for years, yet you post a question like this without an ffmpeg command line?
>In my experience, this symptom occurs only with network or pipe input. So no one can give an accurate answer since you did not provide any information about that.
>Mike Scheutzow
>ffmpeg-user mailing list
>ffmpeg-user at ffmpeg.org
Sorry meant analysizeduration, had to change it to double the 5000000 ffmpeg normally uses, and i did surf and check for answers, but with the speed ffmpeg changes most searches turned up outofdate stuff, hence coming to the list

ffmpeg -analyzeduration 10000000 -i xx.avi -f mpegts -y a.ts

Is that a good enough command line, the problem is the source material has the tendency to only give the audio stream as the -x264opts keyint are 75/100 depending on the stream coming in.


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