File ffmpeg-4-CVE-2023-6601-shim04-5b630743.patch of Package A_tw-ffmpeg-4

From 5b630743c625669b7c6ee4a01d4e0e8b51d7e636 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Mon, 15 May 2023 21:33:03 +0200
Subject: [PATCH] avformat/hls: Better message from hls_probe()

Found-by: Kacper Michajlow <kasper93@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/hls.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/libavformat/hls.c b/libavformat/hls.c
index fc29ef0ca9..2bc142510e 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -2536,17 +2536,23 @@ static int hls_probe(const AVProbeData *p)
 
         int mime_ok = p->mime_type && !(
             av_strcasecmp(p->mime_type, "application/vnd.apple.mpegurl") &&
-            av_strcasecmp(p->mime_type, "audio/mpegurl") &&
+            av_strcasecmp(p->mime_type, "audio/mpegurl")
+            );
+
+        int mime_x = p->mime_type && !(
             av_strcasecmp(p->mime_type, "audio/x-mpegurl") &&
             av_strcasecmp(p->mime_type, "application/x-mpegurl")
             );
 
         if (!mime_ok &&
+            !mime_x &&
             !av_match_ext    (p->filename, "m3u8,hls,m3u") &&
              ff_match_url_ext(p->filename, "m3u8,hls,m3u") <= 0) {
-            av_log(NULL, AV_LOG_ERROR, "Not detecting m3u8/hls with non standard extension\n");
+            av_log(NULL, AV_LOG_ERROR, "Not detecting m3u8/hls with non standard extension and non standard mime type\n");
             return 0;
         }
+        if (mime_x)
+            av_log(NULL, AV_LOG_WARNING, "mime type is not rfc8216 compliant\n");
 
         return AVPROBE_SCORE_MAX;
     }
-- 
2.52.0