[FFmpeg-devel] [PATCH] avformat/lrcenc: Avoid reading packet padding

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Sat Jul 23 19:56:42 EEST 2022


(Everything would be fine if the packet was properly padded.)

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

diff --git a/libavformat/lrcenc.c b/libavformat/lrcenc.c
index cdf94e6cd2..f7a5a6982d 100644
--- a/libavformat/lrcenc.c
+++ b/libavformat/lrcenc.c
@@ -105,7 +105,7 @@ static int lrc_write_packet(AVFormatContext *s, AVPacket *pkt)
                     size--;
                 next_line++;
             }
-            if(line[0] == '[') {
+            if (size && line[0] == '[') {
                 av_log(s, AV_LOG_WARNING,
                        "Subtitle starts with '[', may cause problems with LRC format.\n");
             }
-- 
2.34.1



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