Calling qsv_decode_flush() results in qsv_decode_init_context() being called 
again during the next decoding cycle. If q->pool has already been created, this 
causes a memory leak because new memory is allocated to q->pool without 
cleaning up the existing memory through av_buffer_pool_uninit(). If q->pool 
already exists, we can simply reuse it, avoiding further memory allocation and 
potential leaks.

Signed-off-by: Hyunho Kim <[email protected]>
---
 libavcodec/qsvdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c
index 039ba62484..8a17a52da8 100644
--- a/libavcodec/qsvdec.c
+++ b/libavcodec/qsvdec.c
@@ -412,7 +412,7 @@ static int qsv_decode_init_context(AVCodecContext *avctx, 
QSVContext *q, mfxVide
 
     q->frame_info = param->mfx.FrameInfo;
 
-    if (!avctx->hw_frames_ctx) {
+    if (!avctx->hw_frames_ctx && !q->pool) {
         ret = av_image_get_buffer_size(avctx->pix_fmt, 
FFALIGN(avctx->coded_width, 128), FFALIGN(avctx->coded_height, 64), 1);
         if (ret < 0)
             return ret;
-- 
2.48.1.windows.1

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