On Di, 2023-12-05 at 12:47 +0100, Timo Rothenpieler wrote:
> On 05.12.2023 09:15, Xiang, Haihao wrote:
> > From: Haihao Xiang <haihao.xi...@intel.com>
> >
> > 2M is suitable for more cases, e.g. 4K video.
> >
> > Signed-off-by: Haihao Xiang <haihao.xi...@intel.com>
> > ---
> > libavcodec/qsvenc_av1.c | 2 +-
> > libavcodec/qsvenc_h264.c | 2 +-
> > libavcodec/qsvenc_hevc.c | 2 +-
> > libavcodec/qsvenc_mpeg2.c | 2 +-
> > libavcodec/qsvenc_vp9.c | 2 +-
> > 5 files changed, 5 insertions(+), 5 deletions(-)
> >
> > diff --git a/libavcodec/qsvenc_av1.c b/libavcodec/qsvenc_av1.c
> > index c697845d7b..78c92c1844 100644
> > --- a/libavcodec/qsvenc_av1.c
> > +++ b/libavcodec/qsvenc_av1.c
> > @@ -129,7 +129,7 @@ static const AVClass class = {
> > };
> >
> > static const FFCodecDefault qsv_enc_defaults[] = {
> > - { "b", "1M" },
> > + { "b", "2M" },
>
> Wouldn't it be better to use a constant quality option as default,
> rather than a fixed bitrate?
Did you mean change the default bitrate control mode to CQP ? I was concerned
about the impact to current users.
> 2M still seems incredibly low for 1080p, let alone for 4K content.
Some other HW encoders also use 2M, I'd like to use the same default value.
Thanks
Haihao
>
> > { "g", "-1" },
> > { "bf", "-1" },
> > { "refs", "0" },
> > diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c
> > index 071a9a79e9..37b39cb441 100644
> > --- a/libavcodec/qsvenc_h264.c
> > +++ b/libavcodec/qsvenc_h264.c
> > @@ -178,7 +178,7 @@ static const AVClass class = {
> > };
> >
> > static const FFCodecDefault qsv_enc_defaults[] = {
> > - { "b", "1M" },
> > + { "b", "2M" },
> > { "refs", "0" },
> > { "g", "-1" },
> > { "bf", "-1" },
> > diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
> > index c5b7ac7cc4..181d06cb00 100644
> > --- a/libavcodec/qsvenc_hevc.c
> > +++ b/libavcodec/qsvenc_hevc.c
> > @@ -374,7 +374,7 @@ static const AVClass class = {
> > };
> >
> > static const FFCodecDefault qsv_enc_defaults[] = {
> > - { "b", "1M" },
> > + { "b", "2M" },
> > { "refs", "0" },
> > { "g", "248" },
> > { "bf", "-1" },
> > diff --git a/libavcodec/qsvenc_mpeg2.c b/libavcodec/qsvenc_mpeg2.c
> > index 22f1ff7c0d..012cec3a58 100644
> > --- a/libavcodec/qsvenc_mpeg2.c
> > +++ b/libavcodec/qsvenc_mpeg2.c
> > @@ -82,7 +82,7 @@ static const AVClass class = {
> > };
> >
> > static const FFCodecDefault qsv_enc_defaults[] = {
> > - { "b", "1M" },
> > + { "b", "2M" },
> > { "refs", "0" },
> > // same as the x264 default
> > { "g", "250" },
> > diff --git a/libavcodec/qsvenc_vp9.c b/libavcodec/qsvenc_vp9.c
> > index d0340ef94b..8658b8ec2d 100644
> > --- a/libavcodec/qsvenc_vp9.c
> > +++ b/libavcodec/qsvenc_vp9.c
> > @@ -93,7 +93,7 @@ static const AVClass class = {
> > };
> >
> > static const FFCodecDefault qsv_enc_defaults[] = {
> > - { "b", "1M" },
> > + { "b", "2M" },
> > { "refs", "0" },
> > { "g", "250" },
> > { "trellis", "-1" },
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
