[FFmpeg-user] ffv1.3 memory overflow

[Paul B Mahol]

On 3/13/13, Peter B. <pb at das-werkstatt.com> wrote:
> Quoting Nicolas George <nicolas.george at normalesup.org>:
>
>> Le tridi 23 ventose, an CCXXI, Peter B. a ecrit :
>>> You might want to try downsampling it to something like yuv422p or
>>> even yuv420p (=default HD video pix_fmt)?
>>
>> Johann requested lossless: RGB -> YUV420P is not lossless. On screen
>> captures, this can be especially noticeable.
>
> I know that he wanted to do lossless, but if it's just not possible to
> capture 1080p30 rgb24 in realtime with his hardware, something's gotta
> give :)
>
> I've suggested going to subsamples YUV, because I know FFv1.3's
> perormance there.
> I think from visual quality degradation, screen captures might suffer
> more from lossy mpeg-like compression than colorspace conversion. Not
> too sure, though.
>
> Another interesting option might be to use some motion-png codec for
> screen-capture?

But his hard drive is slow and small capacity.

>
> Regards,
> Pb
>
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