The commit d7f4ad88a0df3c1339e142957bf2c40cd056b8ce introduced a race
condition where the passed opaque pointer reference might be NULL,
when the decoding process starts.
This patch checks that vtctx has a value before accessing it.
This patch fixes #10079.
Signed-off-by: Alessandro Di Nepi <alessandro.din...@gmail.com>
---
libavcodec/videotoolbox.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/videotoolbox.c b/libavcodec/videotoolbox.c
index 1b1be8ddb4..615e2b087a 100644
--- a/libavcodec/videotoolbox.c
+++ b/libavcodec/videotoolbox.c
@@ -692,6 +692,11 @@ static void videotoolbox_decoder_callback(void *opaque,
{
VTContext *vtctx = opaque;
+ if (!vtctx) {
+ av_log(NULL, AV_LOG_WARNING, "vt decoder cb: vt context is null");
+ return;
+ }
+
if (vtctx->frame) {
CVPixelBufferRelease(vtctx->frame);
vtctx->frame = NULL;
--
2.37.1 (Apple Git-137.1)
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