[FFmpeg-cvslog] avformat/hlsenc: correctly reset subtitle stream counter per-varstream

[Timo Rothenpieler]

ffmpeg | branch: release/5.1 | Timo Rothenpieler <timo at rothenpieler.org> | Fri Aug 16 02:01:12 2024 +0200| [0e8b267a97eeeb201d1d9050101cdbc2211f0277] | committer: Timo Rothenpieler

avformat/hlsenc: correctly reset subtitle stream counter per-varstream

Without resetting it, if there was a previous set of varstreams with
subtitles, it would subtract from all the streams, leading to chaos and
segfaults when trying to access for example stream -1.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0e8b267a97eeeb201d1d9050101cdbc2211f0277
---

 libavformat/hlsenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
index e9ee533e68..dcf66315a3 100644
--- a/libavformat/hlsenc.c
+++ b/libavformat/hlsenc.c
@@ -2412,7 +2412,6 @@ static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
     int is_ref_pkt = 1;
     int ret = 0, can_split = 1, i, j;
     int stream_index = 0;
-    int subtitle_streams = 0;
     int range_length = 0;
     const char *proto = NULL;
     int use_temp_file = 0;
@@ -2420,6 +2419,7 @@ static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
     char *old_filename = NULL;
 
     for (i = 0; i < hls->nb_varstreams; i++) {
+        int subtitle_streams = 0;
         vs = &hls->var_streams[i];
         for (j = 0; j < vs->nb_streams; j++) {
             if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {