[FFmpeg-devel] [PATCH 1/1] libavformat/mov.c : rm 'statement will never be executed' warning

[zhaozhenghang]

When CONFIG_H261_DECODER, CONFIG_H263_DECODER, and CONFIG_MPEG4_DECODER are set to 0 by default, resulting in a "statement will never be executed" warning during compilation. To enhance code robustness, this patch fixes the warning.

Signed-off-by: zhaozhenghang <15083277223 at 163.com>
---
 libavformat/mov.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index ccaa988e4b..778f7e4cc8 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5223,18 +5223,14 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     }
 
     switch (st->codecpar->codec_id) {
-#if CONFIG_H261_DECODER
     case AV_CODEC_ID_H261:
-#endif
-#if CONFIG_H263_DECODER
     case AV_CODEC_ID_H263:
-#endif
-#if CONFIG_MPEG4_DECODER
     case AV_CODEC_ID_MPEG4:
-#endif
         st->codecpar->width = 0; /* let decoder init width/height */
         st->codecpar->height= 0;
         break;
+    default:
+        break;
     }
 
     // If the duration of the mp3 packets is not constant, then they could need a parser
-- 
2.50.1.windows.1