[FFmpeg-devel] [PATCH] flvdec: Remove unnecessary initializations

Zhao Zhili quinkblack at foxmail.com
Sat Jul 25 18:24:16 EEST 2020


pre_tag_size is always reset by avio_rb32(). For AVFormatContext
start_time, as the document says, "NEVER set this value directly:
It is deduced from the AVStream values."
---
 libavformat/flvdec.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index 08622739f3..31bdbbd5e9 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -747,7 +747,7 @@ static int flv_read_header(AVFormatContext *s)
     int flags;
     FLVContext *flv = s->priv_data;
     int offset;
-    int pre_tag_size = 0;
+    int pre_tag_size;
 
     /* Actual FLV data at 0xe40000 in KUX file */
     if(!strcmp(s->iformat->name, "kux"))
@@ -773,7 +773,6 @@ static int flv_read_header(AVFormatContext *s)
         av_log(s, AV_LOG_WARNING, "Read FLV header error, input file is not a standard flv format, first PreviousTagSize0 always is 0\n");
     }
 
-    s->start_time = 0;
     flv->sum_flv_tag_size = 0;
     flv->last_keyframe_stream_index = -1;
 
-- 
2.25.1



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