[FFmpeg-user] Determine q factor from encoded video [H.264]

[Andrey Aleksandrovich]

MediaInfo?
http://mediainfo.sourceforge.net


On 4/2/13, FFmichael <michael.rampe at gmail.com> wrote:
> Is there a way (maybe with ffplay or ffprobe) to show the average q factor
> of
> an already encoded video (or individual video frames)?
>
> something like this that is shown after encoding:
> [libx264 @ 0x7fdfeb82ae00] frame I:29    Avg QP:18.52  size: 74048
> [libx264 @ 0x7fdfeb82ae00] frame P:1261  Avg QP:21.62  size: 17495
> [libx264 @ 0x7fdfeb82ae00] frame B:3557  Avg QP:26.92  size:  2912
>
> ...or is this unknowable?
>
> Michael
>
>
>
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