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hwcontext_qsv: transfer data through the child context when VPP fails

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Uploading/downloading data through VPP may not work for some formats, in
that case we can still try to call av_hwframe_transfer_data() on the
child context.

Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>
This commit is contained in:
Anton Khirnov 2016-08-10 14:58:08 +02:00
parent b91ce48600
commit 8ea15afbf2
1 changed files with 40 additions and 0 deletions
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40
libavutil/hwcontext_qsv.c
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@ -559,6 +559,40 @@ static int qsv_transfer_get_formats(AVHWFramesContext *ctx,
return 0;
}
static int qsv_transfer_data_child(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src)
{
QSVFramesContext *s = ctx->internal->priv;
AVHWFramesContext *child_frames_ctx = (AVHWFramesContext*)s->child_frames_ref->data;
int download = !!src->hw_frames_ctx;
mfxFrameSurface1 *surf = (mfxFrameSurface1*)(download ? src->data[3] : dst->data[3]);
AVFrame *dummy;
int ret;
dummy = av_frame_alloc();
if (!dummy)
return AVERROR(ENOMEM);
dummy->format = child_frames_ctx->format;
dummy->width = src->width;
dummy->height = src->height;
dummy->buf[0] = download ? src->buf[0] : dst->buf[0];
dummy->data[3] = surf->Data.MemId;
dummy->hw_frames_ctx = s->child_frames_ref;
ret = download ? av_hwframe_transfer_data(dst, dummy, 0) :
av_hwframe_transfer_data(dummy, src, 0);
dummy->buf[0] = NULL;
dummy->data[3] = NULL;
dummy->hw_frames_ctx = NULL;
av_frame_free(&dummy);
return ret;
}
static int qsv_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src)
{
@ -570,6 +604,9 @@ static int qsv_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
mfxStatus err;
if (!s->session_download) {
if (s->child_frames_ref)
return qsv_transfer_data_child(ctx, dst, src);
av_log(ctx, AV_LOG_ERROR, "Surface download not possible\n");
return AVERROR(ENOSYS);
}
@ -614,6 +651,9 @@ static int qsv_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
mfxStatus err;
if (!s->session_upload) {
if (s->child_frames_ref)
return qsv_transfer_data_child(ctx, dst, src);
av_log(ctx, AV_LOG_ERROR, "Surface upload not possible\n");
return AVERROR(ENOSYS);
}