Add VDENC(lowpower mode) support for QSV h264 and HEVC with the limitation of MSDK API verion greater than 1.15.
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 >=4.16) - HEVC VDENC was supported >= ICE LAKE use option "-low_power 1" to enable VDENC. Signed-off-by: Linjie Fu <[email protected]> --- libavcodec/qsvenc.c | 3 +++ libavcodec/qsvenc.h | 1 + libavcodec/qsvenc_h264.c | 3 +++ libavcodec/qsvenc_hevc.c | 3 +++ 4 files changed, 10 insertions(+) diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index 17a0559f3..16d6e79e2 100644 --- a/libavcodec/qsvenc.c +++ b/libavcodec/qsvenc.c @@ -472,6 +472,9 @@ 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 2d83c7b1a..997ccf2e3 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) #define QSV_HAVE_AVBR QSV_VERSION_ATLEAST(1, 3) diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c index 164f57332..fc2d09154 100644 --- a/libavcodec/qsvenc_h264.c +++ b/libavcodec/qsvenc_h264.c @@ -101,6 +101,9 @@ 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", "low power mode for encoder h264_qsv", OFFSET(qsv.low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, +#endif { NULL }, }; diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c index 471d17487..c86069c28 100644 --- a/libavcodec/qsvenc_hevc.c +++ b/libavcodec/qsvenc_hevc.c @@ -238,6 +238,9 @@ static const AVOption options[] = { { "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN }, INT_MIN, INT_MAX, VE, "profile" }, { "main10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN10 }, INT_MIN, INT_MAX, VE, "profile" }, { "mainsp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAINSP }, INT_MIN, INT_MAX, VE, "profile" }, +#if QSV_HAVE_VDENC + { "low_power", "low power mode for encoder hevc_qsv", OFFSET(qsv.low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, +#endif { NULL }, }; -- 2.17.1 _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
