Determine q factor from encoded video [H.264]

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Determine q factor from encoded video [H.264]

FFmichael
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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Re: Determine q factor from encoded video [H.264]

Andrey Aleksandrovich
MediaInfo?
http://mediainfo.sourceforge.net


On 4/2/13, FFmichael <[hidden email]> 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
>
>
>
> --
> View this message in context:
> http://ffmpeg-users.933282.n4.nabble.com/Determine-q-factor-from-encoded-video-H-264-tp4658219.html
> Sent from the FFmpeg-users mailing list archive at Nabble.com.
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