[FFmpeg-devel] [PATCH] avcodec: add QOI decoder and demuxer and parser and encoder and muxer

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Fri Jun 3 19:21:07 EEST 2022


Paul B Mahol:
> On Fri, Jun 3, 2022 at 6:17 PM Andreas Rheinhardt <
> andreas.rheinhardt at outlook.com> wrote:
> 
>> Paul B Mahol:
>>>
>>> +
>>> +    packet_size = avctx->width * avctx->height * 16LL;
>>> +    if ((ret = ff_alloc_packet(avctx, pkt, packet_size)) < 0)
>>> +        return ret;
>>> +
>>
>> Where does 16 come from? Looking at the code, the factor should be
>> channels + 1 per pixel (and 14 + 8 byte for header + footer). Or am I
>> missing something?
>>
> 
> Worst case compression.
> 

Details please. My estimate was actually for the worst case.

- Andreas


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