ffmpeg | branch: master | Linjie Fu <linjie...@intel.com> | Thu Nov 29 14:14:22 2018 +0800| [e92ce340e63058de32aec733b59fe2b196bed214] | committer: Zhong Li
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> Signed-off-by: Zhong Li <zhong...@intel.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e92ce340e63058de32aec733b59fe2b196bed214 --- libavcodec/qsvenc.c | 7 +++++++ libavcodec/qsvenc.h | 2 ++ libavcodec/qsvenc_h264.c | 4 ++++ 3 files changed, 13 insertions(+) diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index 56a3756357..5b6c68e307 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: ", @@ -475,6 +479,9 @@ 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 4316a101ca..47a70a4898 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) @@ -163,6 +164,7 @@ typedef struct QSVEncContext { int recovery_point_sei; int repeat_pps; + int low_power; int a53_cc; diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c index 8e61826eef..f458137848 100644 --- a/libavcodec/qsvenc_h264.c +++ b/libavcodec/qsvenc_h264.c @@ -154,6 +154,10 @@ 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 }, { NULL }, _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
