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typefind: remove useless masking in (E-)AC-3 typefinders

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This commit is contained in:
René Stadler 2010-12-03 16:22:32 +02:00
parent cc65ba987a
commit 0e39c62878
1 changed files with 4 additions and 4 deletions
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8
gst/typefind/gsttypefindfunctions.c
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@ -1252,11 +1252,11 @@ ac3_type_find (GstTypeFind * tf, gpointer unused)
break;
if (c.data[0] == 0x0b && c.data[1] == 0x77) {
guint bsid = (c.data[5] >> 3) & 0x1F;
guint bsid = c.data[5] >> 3;
if (bsid <= 8) {
/* ac3 */
guint fscod = (c.data[4] >> 6) & 0x03;
guint fscod = c.data[4] >> 6;
guint frmsizecod = c.data[4] & 0x3f;
if (fscod < 3 && frmsizecod < 38) {
@ -1270,7 +1270,7 @@ ac3_type_find (GstTypeFind * tf, gpointer unused)
data_scan_ctx_advance (tf, &c_next, frame_size * 2);
if (c_next.data[0] == 0x0b && c_next.data[1] == 0x77) {
guint fscod2 = (c_next.data[4] >> 6) & 0x03;
guint fscod2 = c_next.data[4] >> 6;
guint frmsizecod2 = c_next.data[4] & 0x3f;
if (fscod == fscod2 && frmsizecod == frmsizecod2) {
@ -1295,7 +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;
frame_size = (((c.data[2] & 0x07) << 8) + c.data[3]) + 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)) {