X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fac3_parser.c;h=ba171653ef63a65f0017a2d4d2ad136afd9c3a65;hb=f34521266ec5816eefa4c10db6098cb91e03c695;hp=1e203ae6ac233df247d799c562dc3f41a45c680d;hpb=5ca7eb36b7353f9e6af05a5a952eead5f6d326dd;p=ffmpeg

diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c
index 1e203ae6ac2..ba171653ef6 100644
--- a/libavcodec/ac3_parser.c
+++ b/libavcodec/ac3_parser.c
@@ -201,6 +201,12 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
     AC3HeaderInfo hdr;
     GetBitContext gbc;
 
+    if (tmp.u8[1] == 0x77 && tmp.u8[2] == 0x0b) {
+        FFSWAP(uint8_t, tmp.u8[1], tmp.u8[2]);
+        FFSWAP(uint8_t, tmp.u8[3], tmp.u8[4]);
+        FFSWAP(uint8_t, tmp.u8[5], tmp.u8[6]);
+    }
+
     init_get_bits(&gbc, tmp.u8+8-AC3_HEADER_SIZE, 54);
     err = ff_ac3_parse_header(&gbc, &hdr);