[FFmpeg-user] Problems with '-frames' option

Tim Nicholson nichot20 at yahoo.com
Fri Jan 25 10:21:17 CET 2013

On 25/01/13 07:31, Tim Nicholson wrote:
> On 24/01/13 21:27, Carl Eugen Hoyos wrote:
>> Tim Nicholson <nichot20 <at> yahoo.com> writes:
>>> tim <at> V-devel2:~/test> ffmpeg_Jan-24 -i in.mov 
>>> -frames 43245 -y -f mov -map 0:v -map 0:a -flags +ildct 
>> -vf "scale=iw:ih:interl=1,format=yuv422p10le" 
>>> -c:v prores_kostya -profile:v 3 -c:a copy
>>> -chunk_duration 20000 out.mov
>> -frames works fine here for a random sample, 
>> please either provide the input sample or find 
> since the problem only manifests itself when the frame count gets to
> circa 20000 on files of around 40000 frames I regret that all the files
> it has  failed on are in the region of 50G so not really suitable to
> upload. It has failed on all files I have tested, and on different
> computers with different CPU and memory arrangements.
>> the minimal combination of options to trigger 
>> the problem.
>> (Or is "format=yuv422p10le" necessary to 
>> reproduce?)
> The command line is a simplification of that which originally triggered
> the issue. If you remove the filter section you will find that they are
> auto reinserted as that is the required format for profile 3 prores so
> they are there to ensure that the scaler is in interlaced.
> I will try and see if I can get a simpler command line by using a
> different codec.

ffmpeg_Jan-24 -i in.mov -frames 40000 -y  -map 0:v -map 0:a -c:v
prores_kostya -profile:v 3 -c:a copy out.mov

still fails in the same way....


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