From: tinghu3 <siriu...@hotmail.com>
MFXVideoDECODE_DecodeFrameAsync always return MFX_WRN_DEVICE_BUSY in special
scenario.
Signed-off-by: tinghu3 <siriu...@hotmail.com>
---
libavcodec/qsvdec.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c
index da700f25e9..35102fb476 100644
--- a/libavcodec/qsvdec.c
+++ b/libavcodec/qsvdec.c
@@ -703,6 +703,7 @@ static int qsv_decode(AVCodecContext *avctx, QSVContext *q,
mfxSyncPoint *sync;
mfxBitstream bs = { { { 0 } } };
int ret;
+ int max_count = 0;
if (avpkt->size) {
bs.Data = avpkt->data;
@@ -730,7 +731,9 @@ static int qsv_decode(AVCodecContext *avctx, QSVContext *q,
insurf, &outsurf, sync);
if (ret == MFX_WRN_DEVICE_BUSY)
av_usleep(500);
-
+ /* Check the max wait time 500ms to avoid dead loop */
+ if (++max_count == 1000)
+ return ret;
} while (ret == MFX_WRN_DEVICE_BUSY || ret == MFX_ERR_MORE_SURFACE);
if (ret == MFX_ERR_INCOMPATIBLE_VIDEO_PARAM) {
--
2.38.1
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