PR #20430 opened by caifan
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20430
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20430.patch

CC:  ffmpeg/libavcodec/v4l2_buffers.c ffmpeg/libavcodec/v4l2_buffers.c:37: 
warning: "USEC_PER_SEC" redefined
   37 | #define USEC_PER_SEC 1000000

Signed-off-by: caifan3 <[email protected]>


>From d8c139cb83848440ae69408eb05f4517a2afd728 Mon Sep 17 00:00:00 2001
From: caifan3 <[email protected]>
Date: Thu, 4 Sep 2025 17:31:38 +0800
Subject: [PATCH] libavcodec/v4l2_buffers.c:warning: "USEC_PER_SEC" redefined

Signed-off-by: caifan3 <[email protected]>
---
 libavcodec/v4l2_buffers.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/v4l2_buffers.c b/libavcodec/v4l2_buffers.c
index 7f597a424a..d869ce9e77 100644
--- a/libavcodec/v4l2_buffers.c
+++ b/libavcodec/v4l2_buffers.c
@@ -34,7 +34,10 @@
 #include "v4l2_buffers.h"
 #include "v4l2_m2m.h"
 
+#ifndef USEC_PER_SEC
 #define USEC_PER_SEC 1000000
+#endif
+
 static AVRational v4l2_timebase = { 1, USEC_PER_SEC };
 
 static inline V4L2m2mContext *buf_to_m2mctx(V4L2Buffer *buf)
-- 
2.49.1

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