[FFmpeg-devel] [PATCH] avformat/hls: fail on probing non hls/m3u8 file extensions
Michael Niedermayer
michael at niedermayer.cc
Wed May 3 15:30:38 EEST 2023
Its unexpected that a .avi or other "standard" file turns into a playlist.
The goal of this patch is to avoid this unexpected behavior and possible
privacy or security differences.
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
libavformat/hls.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/libavformat/hls.c b/libavformat/hls.c
index 8a96a37ff9..826135016d 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -2530,10 +2530,18 @@ static int hls_probe(const AVProbeData *p)
if (strncmp(p->buf, "#EXTM3U", 7))
return 0;
+
if (strstr(p->buf, "#EXT-X-STREAM-INF:") ||
strstr(p->buf, "#EXT-X-TARGETDURATION:") ||
- strstr(p->buf, "#EXT-X-MEDIA-SEQUENCE:"))
+ strstr(p->buf, "#EXT-X-MEDIA-SEQUENCE:")) {
+
+ if (!av_match_ext(p->filename, "m3u8,hls,m3u")) {
+ av_log(NULL, AV_LOG_ERROR, "Not detecting m3u8/hls with non standard extension\n");
+ return 0;
+ }
+
return AVPROBE_SCORE_MAX;
+ }
return 0;
}
--
2.17.1
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