> From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On Behalf > Of Linjie Fu > Sent: Thursday, November 29, 2018 2:14 PM > To: ffmpeg-devel@ffmpeg.org > Cc: Fu, Linjie <linjie...@intel.com> > Subject: [FFmpeg-devel] [PATCH,v5] lavc/qsvenc: add VDENC support for > H264 > > Add VDENC(lowpower mode) support for QSV H264 > > It's an experimental function(like lowpower in vaapi) with some limitations: > - CBR/VBR require HuC which should be explicitly loaded via i915 module > parameter(i915.enable_guc=2 for linux kernel version >= 4.16) > > Use option "-low_power 1" to enable VDENC. > Add in dump_video_param() to show the status of VDENC in runtime log. > > Signed-off-by: Linjie Fu <linjie...@intel.com> > --- > [v2]: Modify the commit message and option comments, use > AV_OPT_TYPE_BOOL to replace AV_OPT_TYPE_INT. > [v3]: Enable H264 VDENC separately. > [v4]: Add in dump_video_param to show the status of VDENC in runtime log. > [v5]: Use print_threestate. > > libavcodec/qsvenc.c | 7 +++++++ > libavcodec/qsvenc.h | 2 ++ > libavcodec/qsvenc_h264.c | 3 +++ > 3 files changed, 12 insertions(+) > > diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index > 948751daf4..b1ec90c6c6 100644 > --- a/libavcodec/qsvenc.c > +++ b/libavcodec/qsvenc.c > @@ -226,6 +226,10 @@ static void dump_video_param(AVCodecContext > *avctx, QSVEncContext *q, > av_log(avctx, AV_LOG_VERBOSE, "\n"); #endif > > +#if QSV_HAVE_VDENC > + av_log(avctx, AV_LOG_VERBOSE, "VDENC: %s\n", > +print_threestate(info->LowPower)); > +#endif > + > #if QSV_VERSION_ATLEAST(1, 8) > av_log(avctx, AV_LOG_VERBOSE, > "RepeatPPS: %s; NumMbPerSlice: %"PRIu16"; LookAheadDS: ", > @@ -464,6 +468,9 @@ static int init_video_param(AVCodecContext *avctx, > QSVEncContext *q) > } > } > > +#if QSV_HAVE_VDENC > + q->param.mfx.LowPower = q->low_power ? > MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF; > +#endif > 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.h b/libavcodec/qsvenc.h index > 50cc4267e7..a396aa7d3f 100644 > --- a/libavcodec/qsvenc.h > +++ b/libavcodec/qsvenc.h > @@ -44,6 +44,7 @@ > #define QSV_HAVE_LA QSV_VERSION_ATLEAST(1, 7) > #define QSV_HAVE_LA_DS QSV_VERSION_ATLEAST(1, 8) #define > QSV_HAVE_LA_HRD QSV_VERSION_ATLEAST(1, 11) > +#define QSV_HAVE_VDENC QSV_VERSION_ATLEAST(1, 15) > > #if defined(_WIN32) || defined(__CYGWIN__) > #define QSV_HAVE_AVBR QSV_VERSION_ATLEAST(1, 3) > @@ -162,6 +163,7 @@ typedef struct QSVEncContext { > int recovery_point_sei; > > int a53_cc; > + int low_power; > > #if QSV_HAVE_MF > int mfmode; > diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c index > 07c9d64e6b..40071d805a 100644 > --- a/libavcodec/qsvenc_h264.c > +++ b/libavcodec/qsvenc_h264.c > @@ -153,6 +153,9 @@ static const AVOption options[] = { > { "off" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = > MFX_MF_DISABLED }, INT_MIN, INT_MAX, VE, "mfmode" }, > { "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 > > { NULL }, > }; > -- > 2.17.1
CQP mode tested, and patch applied since https://github.com/Intel-Media-SDK/MediaSDK/issues/1010 has been fixed. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
