[Libav-user] H264 Packed RGB Decoding

[Paul B Mahol]

On 2/7/20, Alan Daniels <alan at softdrive.co> wrote:
>> No but as Devin correctly explained the software scaler should not add a
>> lot of latency compared to the 4:4:4 decoding.
>
>
>
> Perhaps I am doing something wrong then. swscale always takes a long time
> for me:
>
>  ~10 ms for GBRP -> BGRA
>
> ~30 ms for YUV420P -> BGRA
>
>
>
> I haven't fully looked into minimizing decoder latency yet, though it varies
> from ~5-50 ms depending on content.
>
> 2560x1440 resolution.
>

Do you have assembly SIMD disabled? nasm/yasm is installed?