[Var] minimp3: Update to fork <https://github.com/manxorist/minimp3/r…

…eleases/tag/openmpt-2024-08-15-v3> commit 2811a29e4115199209fe91ae5217c9c5fc611fa6 (2024-08-15). This applies the following pull requests: <lieff/minimp3#125>.

git-svn-id: https://source.openmpt.org/svn/openmpt/trunk/OpenMPT@21446 56274372-70c3-4bfc-bfc3-4c3a0b034d27

include/minimp3/OpenMPT.txt

@@ -1,10 +1,11 @@
 minimp3 library from https://github.com/lieff/minimp3
-Fork https://github.com/manxorist/minimp3/releases/tag/openmpt-2024-08-15-v2
-commit 30b5aea9b6d000f197798ddd44476b641a4d0ba7 (2024-08-15)
+Fork https://github.com/manxorist/minimp3/releases/tag/openmpt-2024-08-15-v3
+commit 2811a29e4115199209fe91ae5217c9c5fc611fa6 (2024-08-15)
 The following changes have been made:
  *  minimp3.c has been added
  *  The following pull rquests have been merged:
      *  https://github.com/lieff/minimp3/pull/126
      *  https://github.com/lieff/minimp3/pull/96
      *  https://github.com/lieff/minimp3/pull/97
+     *  https://github.com/lieff/minimp3/pull/125
  *  all modifications are marked by /* OpenMPT */

include/minimp3/minimp3.h

@@ -1655,6 +1655,21 @@ static void mp3d_synth_granule(float *qmf_state, float *grbuf, int nbands, int n
     }
 }
 
+static int hdr_is_tag(const uint8_t* hdr)
+{
+    return hdr[0] == 'T' && hdr[1] == 'A' && hdr[2] == 'G' && hdr[3] == '\0';
+}
+
+static int hdr_is_null(const uint8_t* hdr)
+{
+    return hdr[0] == '\0' && hdr[1] == '\0' && hdr[2] == '\0' && hdr[3] == '\0';
+}
+
+static int hdr_is_null_or_tag(const uint8_t* hdr)
+{
+    return hdr_is_tag(hdr) > 0 || hdr_is_null(hdr) > 0;
+}
+
 static int mp3d_match_frame(const uint8_t *hdr, int mp3_bytes, int frame_bytes)
 {
     int i, nmatch;
@@ -1663,6 +1678,8 @@ static int mp3d_match_frame(const uint8_t *hdr, int mp3_bytes, int frame_bytes)
         i += hdr_frame_bytes(hdr + i, frame_bytes) + hdr_padding(hdr + i);
         if (i + HDR_SIZE > mp3_bytes)
             return nmatch > 0;
+        if (hdr_is_null_or_tag(hdr + i))
+            return nmatch > 0;
         if (!hdr_compare(hdr, hdr + i))
             return 0;
     }