typefind: fix E-AC-3 frame size parsing

Frame size is given in words; it is already multiplied by two where
needed, so the left shift is superfluous. This extra multiplication
caused the code to inspect the third packet instead of the second,
which would fail for files where the second packet has a size
different from the first.

diff --git a/gst/typefind/gsttypefindfunctions.c b/gst/typefind/gsttypefindfunctions.c
index 030f7af..de843bf 100644 (file)
--- a/gst/typefind/gsttypefindfunctions.c
+++ b/gst/typefind/gsttypefindfunctions.c
@@ -1295,8 +1295,7 @@ ac3_type_find (GstTypeFind * tf, gpointer unused)
         DataScanCtx c_next = c;
         guint frame_size;
 
-        frame_size = ((((c.data[2] & 0x07) << 8) +
-                (c.data[3] & 0xff)) + 1) << 1;
+        frame_size = (((c.data[2] & 0x07) << 8) + (c.data[3] & 0xff)) + 1;
         GST_LOG ("possible E-AC3 frame sync at offset %"
             G_GUINT64_FORMAT ", size=%u", c.offset, frame_size);
         if (data_scan_ctx_ensure_data (tf, &c_next, (frame_size * 2) + 5)) {