On Tue, 28 Apr 2020, Fu, Linjie wrote:
From: ffmpeg-devel On Behalf Of
Martin Storsjö
Sent: Tuesday, April 28, 2020 14:31
To: Fu, Linjie
Cc: FFmpeg development discussions and patches
Subject: Re: [FFmpeg-devel] [PATCH v4 1/9] lavc/libopenh264enc: Add
default qmin/qmax support
On Tue, 28
> From: ffmpeg-devel On Behalf Of
> Martin Storsjö
> Sent: Tuesday, April 28, 2020 14:31
> To: Fu, Linjie
> Cc: FFmpeg development discussions and patches de...@ffmpeg.org>
> Subject: Re: [FFmpeg-devel] [PATCH v4 1/9] lavc/libopenh264enc: Add
> default qmin/qmax support
On Tue, 28 Apr 2020, Fu, Linjie wrote:
From: Martin Storsjö
Sent: Tuesday, April 28, 2020 14:19
To: Fu, Linjie
Cc: FFmpeg development discussions and patches
Subject: RE: [FFmpeg-devel] [PATCH v4 1/9] lavc/libopenh264enc: Add
default qmin/qmax support
On Tue, 28 Apr 2020, Fu, Linjie wrote
> From: Martin Storsjö
> Sent: Tuesday, April 28, 2020 14:19
> To: Fu, Linjie
> Cc: FFmpeg development discussions and patches de...@ffmpeg.org>
> Subject: RE: [FFmpeg-devel] [PATCH v4 1/9] lavc/libopenh264enc: Add
> default qmin/qmax support
>
> On Tue, 28
On Tue, 28 Apr 2020, Fu, Linjie wrote:
From: Martin Storsjö
Sent: Tuesday, April 28, 2020 03:27
If qmax/qmin < 0, i.e. wasn't specified by the user, wouldn't it be better
to not touch param.iMax/MinQp at all (and use the default value of the
library, which may change between versions),
> From: Martin Storsjö
> Sent: Tuesday, April 28, 2020 03:27
>
> If qmax/qmin < 0, i.e. wasn't specified by the user, wouldn't it be better
> to not touch param.iMax/MinQp at all (and use the default value of the
> library, which may change between versions), instead of overriding it with
> a
On Wed, 15 Apr 2020, 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(0,51) to
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)
[1]
