[FFmpeg-devel] [PATCH] ffv1dec: fix threaded decode failures

[Lynne]

On 05/02/2025 15:51, James Almer wrote:
> On 2/5/2025 11:47 AM, Lynne wrote:
>> Fixes 7187eadf8c0f0c640f1d23811c55fad0cba60aa5
>>
>> The issue is that while avctx->pix_fmt is synchronized between
>> threads, f->pix_fmt was not.
>>
>> Fixes fate-vsynth1-ffv1-2pass10 with THREADS=2.
> 
> Can confirm "make fate-vsynth{1,2,3,_lena} THREADS=2" (as well as higher 
> thread count) passes with this patch.
> 
>> ---
>>   libavcodec/ffv1dec.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
>> index fcf3d525ac..0284845503 100644
>> --- a/libavcodec/ffv1dec.c
>> +++ b/libavcodec/ffv1dec.c
>> @@ -1114,6 +1114,7 @@ static int update_thread_context(AVCodecContext 
>> *dst, const AVCodecContext *src)
>>       fdst->plane_count         = fsrc->plane_count;
>>       fdst->ac                  = fsrc->ac;
>>       fdst->colorspace          = fsrc->colorspace;
>> +    fdst->pix_fmt             = fsrc->pix_fmt;
>>       fdst->ec                  = fsrc->ec;
>>       fdst->intra               = fsrc->intra;
> 
> 
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Thanks.
I'll push this soon unless there are objections.
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