> From: ffmpeg-devel On Behalf Of
> James Almer
> Sent: Tuesday, March 31, 2020 23:44
> To: ffmpeg-devel@ffmpeg.org
> Subject: Re: [FFmpeg-devel] [PATCH 1/7] lavc/libopenh264enc: Add default
> qmin/qmax support
>
> On 3/31/2020 12:31 PM, Linjie Fu wrote:
> >
On 3/31/2020 12:31 PM, Linjie Fu wrote:
> Set default QP range to (1, 51) instead of (2, 32).
>
> QP = 0 is not well supported currently in libopenh264. If iMaxQp/iMinQp
> equals 0, the QP range would be changed unexpectedly inside libopenh264
> with a warning:
>
> Warning:Change QP Range from(0,
Set default QP range to (1, 51) instead of (2, 32).
QP = 0 is not well supported currently in libopenh264. If iMaxQp/iMinQp
equals 0, the QP range would be changed unexpectedly inside libopenh264
with a warning:
Warning:Change QP Range from(0,51) to (12,42)
Signed-off-by: Linjie Fu
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