The width and height for qsv frame to download need to be
aligned with 16. Add the alignment operation.
Now the following command works:
ffmpeg -hwaccel qsv -f rawvideo -s 1920x1080 -pix_fmt yuv420p -i \
input.yuv -vf "hwupload=extra_hw_frames=16,format=qsv,hwdownload, \
format=nv12" -f null -
Signed-off-by: Wenbin Chen <wenbin.c...@intel.com>
---
libavutil/hwcontext_qsv.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index 95f8071abe..1e7c065902 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -1063,6 +1063,40 @@ static int qsv_transfer_data_from(AVHWFramesContext
*ctx, AVFrame *dst,
if (ret < 0)
return ret;
+ /* According to MSDK spec for mfxframeinfo, "Width must be a multiple of
16.
+ * Height must be a multiple of 16 for progressive frame sequence and a
+ * multiple of 32 otherwise.", so allign all frames to 16 before
downloading. */
+ if (ctx->height & 15 || dst->linesize[0] & 15) {
+ AVFrame *tmp_frame;
+ tmp_frame = av_frame_alloc();
+ if (!tmp_frame)
+ return AVERROR(ENOMEM);
+ ret = av_frame_ref(tmp_frame, dst);
+ if (ret < 0) {
+ av_frame_free(&tmp_frame);
+ return ret;
+ }
+ av_frame_unref(dst);
+
+ dst->width = FFALIGN(tmp_frame->width, 16);
+ dst->height = FFALIGN(ctx->height, 16);
+ dst->format = tmp_frame->format;
+ ret = av_frame_get_buffer(dst, 0);
+ if (ret < 0) {
+ av_frame_free(&tmp_frame);
+ return ret;
+ }
+
+ dst->width = tmp_frame->width;
+ dst->height = tmp_frame->height;
+ ret = av_frame_copy_props(dst, tmp_frame);
+ if (ret < 0) {
+ av_frame_free(&tmp_frame);
+ return ret;
+ }
+ av_frame_free(&tmp_frame);
+ }
+
if (!s->session_download) {
if (s->child_frames_ref)
return qsv_transfer_data_child(ctx, dst, src);
--
2.32.0
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