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Merge commit '0670acc4f1c4ceb16968818a654e07a3f550a8c9'

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* commit '0670acc4f1c4ceb16968818a654e07a3f550a8c9':
  dca_parser: Extend DTS core sync word and fix existing check

Conflicts:
	libavcodec/dca_parser.c

See: e80b2b9c81
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-12 12:06:35 +02:00
commit 85bbe1dbd1
1 changed files with 9 additions and 5 deletions
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14
libavcodec/dca_parser.c
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@ -42,10 +42,10 @@ typedef struct DCAParseContext {
#define IS_EXSS_MARKER(state) ((state & 0xFFFFFFFF) == DCA_SYNCWORD_SUBSTREAM)
#define IS_MARKER(state) (IS_CORE_MARKER(state) || IS_EXSS_MARKER(state))
#define IS_MARKER(state) (IS_CORE_MARKER(state) || IS_EXSS_MARKER(state))
#define CORE_MARKER(state) ((state >> 16) & 0xFFFFFFFF)
#define EXSS_MARKER(state) (state & 0xFFFFFFFF)
#define CORE_MARKER(state) ((state >> 16) & 0xFFFFFFFF)
#define EXSS_MARKER(state) (state & 0xFFFFFFFF)
/**
* Find the end of the current frame in the bitstream.
@ -66,7 +66,9 @@ 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)) {
if (!pc1->lastmarker || CORE_MARKER(state) == pc1->lastmarker || pc1->lastmarker == DCA_SYNCWORD_SUBSTREAM) {
if (!pc1->lastmarker ||
pc1->lastmarker == CORE_MARKER(state) ||
pc1->lastmarker == DCA_SYNCWORD_SUBSTREAM) {
start_found = 1;
if (IS_EXSS_MARKER(state))
pc1->lastmarker = EXSS_MARKER(state);
@ -82,7 +84,9 @@ static int dca_find_frame_end(DCAParseContext *pc1, const uint8_t *buf,
for (; i < buf_size; i++) {
pc1->size++;
state = (state << 8) | buf[i];
if (IS_MARKER(state) && (CORE_MARKER(state) == pc1->lastmarker || pc1->lastmarker == DCA_SYNCWORD_SUBSTREAM)) {
if (IS_MARKER(state) &&
(pc1->lastmarker == CORE_MARKER(state) ||
pc1->lastmarker == DCA_SYNCWORD_SUBSTREAM)) {
if (pc1->framesize > pc1->size)
continue;
pc->frame_start_found = 0;