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lavc/videotoolboxenc: Fix crash by uninitialized value 

If create_cv_pixel_buffer() fails, pixel_buffer_info might get into CFRelease() containing an arbitrary value.
This commit is contained in:
Thilo Borgmann 2022-09-15 20:42:58 +02:00
parent 5a7978a694
commit 2ca2d46f0b
1 changed files with 1 additions and 3 deletions
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4
libavcodec/videotoolboxenc.c
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@ -1440,7 +1440,7 @@ static int vtenc_create_encoder(AVCodecContext *avctx,
static int vtenc_configure_encoder(AVCodecContext *avctx)
{
CFMutableDictionaryRef enc_info;
CFMutableDictionaryRef pixel_buffer_info;
CFMutableDictionaryRef pixel_buffer_info = NULL;
CMVideoCodecType codec_type;
VTEncContext *vtctx = avctx->priv_data;
CFStringRef profile_level = NULL;
@ -1517,8 +1517,6 @@ static int vtenc_configure_encoder(AVCodecContext *avctx)
status = create_cv_pixel_buffer_info(avctx, &pixel_buffer_info);
if (status)
goto init_cleanup;
} else {
pixel_buffer_info = NULL;
}
vtctx->dts_delta = vtctx->has_b_frames ? -1 : 0;