it would be good to describe the change a bit more clearly, something like: Allows MediaSDK *runtime *to choose LowPower/non-LowPower modes, if not explicitly set.
regards Max On Mon, Sep 28, 2020 at 9:32 AM Haihao Xiang <haihao.xi...@intel.com> wrote: > The SDK may support LowPower and non-LowPower modes, some features are > available only under one of the two modes. It is hard for user to know > whether a feature is supported under the given mode, so let the SDK to > choose a mode for encoding by default. > --- > libavcodec/qsvenc.c | 6 ++++-- > libavcodec/qsvenc.h | 2 +- > 2 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c > index 1ed8f5d973..cff96e59c9 100644 > --- a/libavcodec/qsvenc.c > +++ b/libavcodec/qsvenc.c > @@ -510,7 +510,7 @@ static int init_video_param(AVCodecContext *avctx, > QSVEncContext *q) > } > } > > - if (q->low_power) { > + if (q->low_power == 1) { > #if QSV_HAVE_VDENC > q->param.mfx.LowPower = MFX_CODINGOPTION_ON; > #else > @@ -519,7 +519,9 @@ static int init_video_param(AVCodecContext *avctx, > QSVEncContext *q) > q->low_power = 0; > q->param.mfx.LowPower = MFX_CODINGOPTION_OFF; > #endif > - } else > + } else if (q->low_power == -1) > + q->param.mfx.LowPower = MFX_CODINGOPTION_UNKNOWN; > + else > q->param.mfx.LowPower = MFX_CODINGOPTION_OFF; > > q->param.mfx.CodecProfile = q->profile; > diff --git a/libavcodec/qsvenc.h b/libavcodec/qsvenc.h > index 4f579d1db1..577775cc1a 100644 > --- a/libavcodec/qsvenc.h > +++ b/libavcodec/qsvenc.h > @@ -96,7 +96,7 @@ > { "adaptive_b", "Adaptive B-frame placement", > OFFSET(qsv.adaptive_b), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, > 1, VE }, \ > { "b_strategy", "Strategy to choose between I/P/B-frames", > OFFSET(qsv.b_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, > VE }, \ > { "forced_idr", "Forcing I frames as IDR frames", > OFFSET(qsv.forced_idr), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, > 1, VE }, \ > -{ "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},\ > +{ "low_power", "enable low power mode(experimental: many limitations by > mfx version, BRC modes, etc.)", OFFSET(qsv.low_power), AV_OPT_TYPE_BOOL, { > .i64 = -1}, -1, 1, VE},\ > > extern const AVCodecHWConfigInternal *ff_qsv_enc_hw_configs[]; > > -- > 2.25.1 > > _______________________________________________ > 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".