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

[zhaozhenghang]

In my development scenario, 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 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index ccaa988e4b..4a4641d51b 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5222,6 +5222,7 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
             return ret;
     }
 
+#if CONFIG_H261_DECODER || CONFIG_H263_DECODER || CONFIG_MPEG4_DECODER
     switch (st->codecpar->codec_id) {
 #if CONFIG_H261_DECODER
     case AV_CODEC_ID_H261:
@@ -5236,7 +5237,7 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         st->codecpar->height= 0;
         break;
     }
-
+#endif
     // If the duration of the mp3 packets is not constant, then they could need a parser
     if (st->codecpar->codec_id == AV_CODEC_ID_MP3
         && sc->time_scale == st->codecpar->sample_rate) {
-- 
2.50.1.windows.1