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From: Lynne <dev@lynne.ee>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH] ffv1dec: fix threaded decode failures
Date: Wed, 5 Feb 2025 17:26:39 +0100
Message-ID: <bef97a1e-a40d-4dfd-8782-ff12f7d97c87@lynne.ee> (raw)
In-Reply-To: <490db0e3-67c6-4d5f-a407-eac1b26a4f7c@gmail.com>


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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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> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

Thanks.
I'll push this soon unless there are objections.

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  reply	other threads:[~2025-02-05 16:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-05 14:47 Lynne
2025-02-05 14:51 ` James Almer
2025-02-05 16:26   ` Lynne [this message]
2025-02-06  6:59     ` Lynne

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