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avcodec/dxva2: Initialize dxva_size and check it

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Related: CID1591878 Uninitialized scalar variable
Related: CID1591928 Uninitialized pointer read

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c8c59e9929)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2024-05-26 22:13:28 +02:00
parent 8c1b303678
commit 5bb7884870
1 changed files with 2 additions and 2 deletions
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libavcodec/dxva2.c
+2 -2
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@@ -56,7 +56,7 @@ int ff_dxva2_commit_buffer(AVCodecContext *avctx,
unsigned type, const void *data, unsigned size,
unsigned mb_count)
{
void *dxva_data;
void *dxva_data = NULL;
unsigned dxva_size;
int result;
HRESULT hr = 0;
@@ -78,7 +78,7 @@ int ff_dxva2_commit_buffer(AVCodecContext *avctx,
type, hr);
return -1;
}
if (size <= dxva_size) {
if (dxva_data && size <= dxva_size) {
memcpy(dxva_data, data, size);
#if CONFIG_D3D11VA