Soft Works <softwo...@hotmail.com> 于2020年5月24日周日 下午8:13写道： > > These conditions are: > - Dimensions are aligned to 16/32 byte (e.g. 1920x800) > - No scaling is done > - Color format conversion (e.g. 10bit to 8bit) > > Example command: > ffmpeg -c:v hevc_qsv -hwaccel qsv -i hevc_10bit_1920_800.mkv -filter_complex > "scale_qsv=format=nv12" -c:v h264_qsv out.mkv
Could you help to file a bug on https://trac.ffmpeg.org/ or prove a link to download the tested video hevc_10bit_1920_800.mkv ? > Fix: > - Increase the frame height to the next alignment value > --- > libavfilter/qsvvpp.c | 7 ++++++- > libavfilter/vf_scale_qsv.c | 9 ++++++++- > 2 files changed, 14 insertions(+), 2 deletions(-) > > diff --git a/libavfilter/qsvvpp.c b/libavfilter/qsvvpp.c > index 1bbb7a7e68..98d2353d1c 100644 > --- a/libavfilter/qsvvpp.c > +++ b/libavfilter/qsvvpp.c > @@ -420,6 +420,7 @@ static int init_vpp_session(AVFilterContext *avctx, > QSVVPPContext *s) > mfxHandleType handle_type; > mfxVersion ver; > mfxIMPL impl; > + int height_align_adjust = 0; > int ret, i; > > if (inlink->hw_frames_ctx) { > @@ -463,9 +464,13 @@ static int init_vpp_session(AVFilterContext *avctx, > QSVVPPContext *s) > out_frames_ctx = (AVHWFramesContext *)out_frames_ref->data; > out_frames_hwctx = out_frames_ctx->hwctx; > > + /* work around a bug in MSDK where VPP processing hangs under > certain conditions */ > + if (inlink->h == outlink->h) > + height_align_adjust = 1; > + > out_frames_ctx->format = AV_PIX_FMT_QSV; > out_frames_ctx->width = FFALIGN(outlink->w, 32); > - out_frames_ctx->height = FFALIGN(outlink->h, 32); > + out_frames_ctx->height = FFALIGN(outlink->h + > height_align_adjust, 32); > out_frames_ctx->sw_format = s->out_sw_format; > out_frames_ctx->initial_pool_size = 64; > if (avctx->extra_hw_frames > 0) > diff --git a/libavfilter/vf_scale_qsv.c b/libavfilter/vf_scale_qsv.c > index 5259104a4f..303d2101a9 100644 > --- a/libavfilter/vf_scale_qsv.c > +++ b/libavfilter/vf_scale_qsv.c > @@ -181,8 +181,10 @@ static int init_out_pool(AVFilterContext *ctx, > AVQSVFramesContext *out_frames_hwctx; > enum AVPixelFormat in_format; > enum AVPixelFormat out_format; > + int height_align_adjust = 0; > int i, ret; > > + > /* check that we have a hw context */ > if (!ctx->inputs[0]->hw_frames_ctx) { > av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n"); > @@ -191,6 +193,7 @@ static int init_out_pool(AVFilterContext *ctx, > in_frames_ctx = > (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data; > in_frames_hwctx = in_frames_ctx->hwctx; > > + in_format = in_frames_ctx->sw_format; > in_format = in_frames_ctx->sw_format; > out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format; > > @@ -200,9 +203,13 @@ static int init_out_pool(AVFilterContext *ctx, > out_frames_ctx = (AVHWFramesContext*)outlink->hw_frames_ctx->data; > out_frames_hwctx = out_frames_ctx->hwctx; > > + /* work around a bug in MSDK where VPP processing hangs under certain > conditions */ > + if (in_frames_ctx->height == out_height) > + height_align_adjust = 1; > + > out_frames_ctx->format = AV_PIX_FMT_QSV; > out_frames_ctx->width = FFALIGN(out_width, 16); > - out_frames_ctx->height = FFALIGN(out_height, 16); > + out_frames_ctx->height = FFALIGN(out_height + > height_align_adjust, 16); > out_frames_ctx->sw_format = out_format; > out_frames_ctx->initial_pool_size = 4; Probally make sense, but have you tested the width value with similar issue? _______________________________________________ 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".
