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dca_parser: Add support for parsing dts express

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(cherry picked from commit ea36f60493f675db531dc2dbef04fb60fbc21a6a)

Review-by: Benjamin Larsson
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Hendrik Leppkes 2011-05-27 16:14:48 +02:00 committed by Michael Niedermayer
parent 7b6ae0e849
commit 14474fbbd0
1 changed files with 3 additions and 6 deletions
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9
libavcodec/dca_parser.c
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@ -36,7 +36,7 @@ typedef struct DCAParseContext {
#define IS_MARKER(state, i, buf, buf_size) \
((state == DCA_MARKER_14B_LE && (i < buf_size-2) && (buf[i+1] & 0xF0) == 0xF0 && buf[i+2] == 0x07) \
|| (state == DCA_MARKER_14B_BE && (i < buf_size-2) && buf[i+1] == 0x07 && (buf[i+2] & 0xF0) == 0xF0) \
|| state == DCA_MARKER_RAW_LE || state == DCA_MARKER_RAW_BE)
|| state == DCA_MARKER_RAW_LE || state == DCA_MARKER_RAW_BE || state == DCA_HD_MARKER)
/**
* finds the end of the current frame in the bitstream.
@ -57,10 +57,7 @@ static int dca_find_frame_end(DCAParseContext * pc1, const uint8_t * buf,
for (i = 0; i < buf_size; i++) {
state = (state << 8) | buf[i];
if (IS_MARKER(state, i, buf, buf_size)) {
if (pc1->lastmarker && state == pc1->lastmarker) {
start_found = 1;
break;
} else if (!pc1->lastmarker) {
if (!pc1->lastmarker || state == pc1->lastmarker || pc1->lastmarker == DCA_HD_MARKER) {
start_found = 1;
pc1->lastmarker = state;
break;
@ -74,7 +71,7 @@ static int dca_find_frame_end(DCAParseContext * pc1, const uint8_t * buf,
state = (state << 8) | buf[i];
if (state == DCA_HD_MARKER && !pc1->hd_pos)
pc1->hd_pos = pc1->size;
if (state == pc1->lastmarker && IS_MARKER(state, i, buf, buf_size)) {
if (IS_MARKER(state, i, buf, buf_size) && (state == pc1->lastmarker || pc1->lastmarker == DCA_HD_MARKER)) {
if(pc1->framesize > pc1->size)
continue;
if(!pc1->framesize){