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lavf/qsv: clone the frame which may be managed by framework

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For filters based on framesync, the input frame was managed
by framesync, so we should not directly keep and destroy it,
instead we make a clone of it here, or else double-free will occur.
But for other filters not based on framesync, we still need to
free the input frame inside filter_frame.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
(cherry picked from commit d865783b6c)
This commit is contained in:
Ruiling Song
2018-04-03 09:50:20 +08:00
committed by Mark Thompson
parent 58569162c2
commit a768c0a3e1
2 changed files with 5 additions and 4 deletions
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4
libavfilter/qsvvpp.c
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@@ -296,7 +296,7 @@ static QSVFrame *submit_frame(QSVVPPContext *s, AVFilterLink *inlink, AVFrame *p
av_log(ctx, AV_LOG_ERROR, "QSVVPP gets a wrong frame.\n");
return NULL;
}
qsv_frame->frame = picref;
qsv_frame->frame = av_frame_clone(picref);
qsv_frame->surface = (mfxFrameSurface1 *)qsv_frame->frame->data[3];
} else {
/* make a copy if the input is not padded as libmfx requires */
@@ -318,7 +318,7 @@ static QSVFrame *submit_frame(QSVVPPContext *s, AVFilterLink *inlink, AVFrame *p
av_frame_copy_props(qsv_frame->frame, picref);
av_frame_free(&picref);
} else
qsv_frame->frame = picref;
qsv_frame->frame = av_frame_clone(picref);
if (map_frame_to_surface(qsv_frame->frame,
&qsv_frame->surface_internal) < 0) {

5
libavfilter/vf_vpp_qsv.c
View File

@@ -341,9 +341,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
VPPContext *vpp = inlink->dst->priv;
AVFilterLink *outlink = ctx->outputs[0];
if (vpp->qsv)
if (vpp->qsv) {
ret = ff_qsvvpp_filter_frame(vpp->qsv, inlink, picref);
else {
av_frame_free(&picref);
} else {
if (picref->pts != AV_NOPTS_VALUE)
picref->pts = av_rescale_q(picref->pts, inlink->time_base, outlink->time_base);
ret = ff_filter_frame(outlink, picref);