> From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On Behalf > Of Linjie Fu > Sent: Tuesday, March 26, 2019 1:51 PM > To: ffmpeg-devel@ffmpeg.org > Cc: Fu, Linjie <linjie...@intel.com> > Subject: [FFmpeg-devel] [PATCH, v2] lavc/qsvenc: expose low_power option > in H264 QSV > > Always exposes low_power option for h264 qsv, and reports a warning if > VDENC is not supported with current version of MSDK. > > Signed-off-by: Linjie Fu <linjie...@intel.com> > --- > [v2]: repalce "VDENC" with "low_power" to be more understandable. > > libavcodec/qsvenc.c | 11 ++++++++++- > libavcodec/qsvenc_h264.c | 2 -- > 2 files changed, 10 insertions(+), 3 deletions(-) > > diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index > 5aa020d47b..8264d0a413 100644 > --- a/libavcodec/qsvenc.c > +++ b/libavcodec/qsvenc.c > @@ -495,9 +495,18 @@ static int init_video_param(AVCodecContext *avctx, > QSVEncContext *q) > } > } > > + if (q->low_power) { > #if QSV_HAVE_VDENC > - q->param.mfx.LowPower = q->low_power ? > MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF; > + q->param.mfx.LowPower = MFX_CODINGOPTION_ON; #else > + av_log(avctx, AV_LOG_WARNING, "The low_power option is " > + "not supported with this MSDK > version.\n"); > + q->low_power = 0; > + q->param.mfx.LowPower = MFX_CODINGOPTION_OFF; > #endif > + } else > + q->param.mfx.LowPower = MFX_CODINGOPTION_OFF; > + > q->param.mfx.CodecProfile = q->profile; > q->param.mfx.TargetUsage = avctx->compression_level; > q->param.mfx.GopPicSize = FFMAX(0, avctx->gop_size); > diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c index > f458137848..93044a58c9 100644 > --- a/libavcodec/qsvenc_h264.c > +++ b/libavcodec/qsvenc_h264.c > @@ -154,9 +154,7 @@ static const AVOption options[] = { > { "auto" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = > MFX_MF_AUTO }, INT_MIN, INT_MAX, VE, "mfmode" }, > #endif > > -#if QSV_HAVE_VDENC > { "low_power", "enable low power mode(experimental: many > limitations by mfx version, BRC modes, etc.)", OFFSET(qsv.low_power), > AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE}, -#endif > > { "repeat_pps", "repeat pps for every frame", OFFSET(qsv.repeat_pps), > AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
How about move this h264 private option to qsvenc.h to make it a common option for all codecs? Though it is not supported for all codecs, but IMHO this not a big problem since we will check it at runtime: https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/qsvenc.c#L389 It will be aligned with ffmpeg-vaapi, and avoid extra effort if other codecs add low_power support. _______________________________________________ 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".
