[FFmpeg-devel] [PATCH 11/39] avcodec/dxv: Constify slice threads' ptr to main context

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Wed Jul 27 01:07:46 EEST 2022


Modifying the main context from a slice thread is (usually)
a data race, so it must not happen. So only use a pointer to const
to access the main context.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
 libavcodec/dxv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dxv.c b/libavcodec/dxv.c
index b3df00a5d8..2a055a3438 100644
--- a/libavcodec/dxv.c
+++ b/libavcodec/dxv.c
@@ -193,7 +193,7 @@ static int yao_block(uint8_t *plane0, ptrdiff_t stride0,
 static int decompress_texture_thread(AVCodecContext *avctx, void *arg,
                                      int slice, int thread_nb)
 {
-    DXVContext *ctx = avctx->priv_data;
+    const DXVContext *ctx = avctx->priv_data;
     AVFrame *frame = arg;
     const uint8_t *d = ctx->tex_data;
     int w_block = avctx->coded_width / ctx->texture_block_w;
-- 
2.34.1



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