[FFmpeg-user] ffmpeg choses variable framerate for 1080p video only

[Robert Krüger]

On Fri, Sep 14, 2012 at 4:50 PM, Kosta Vlotis <kosta.brazzers at gmail.com> wrote:
> On Fri, Sep 14, 2012 at 4:52 AM, Nicolas George
> <nicolas.george at normalesup.org> wrote:
>> L'octidi 28 fructidor, an CCXX, Kosta Vlotis a écrit :
>>> i run the exact command i specified, then change the resolution ONLY
>>> to 1280x720 then inspect the video with mediainfo.
>>
>> So there is the possible explanation: this mediainfo is hallucinating.
>>
>> Do you have any actual problem with the resulting video?
>>
>> Regards,
>>
>> --
>>   Nicolas George
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>> ffmpeg-user at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> the same original video was used to create both 720p and 1080p videos.
> the only reason i discovered this is because the 720p (CFR) worked on
> a PlayStation 3 and the 1080p (VFR) did not (The PS3 does not support
> VFR). further investigating showed that FFMPEG was selecting VFR for
> the 1080p video even though the command line is exactly the same
> (minus bit rate and resolution)

post the first few dozen lines of the output of

ffprobe -i <yourfile> -show_frames

for both files so the timestamps of the first few frames of both files
(including what ffmpeg thinks the frame rate is) can be seen