From eda995d5da0a91ab0c4fa6c3d30c5bcdf69d2828 Mon Sep 17 00:00:00 2001
From: Andre <maan@p133.(none)>
Date: Sat, 13 May 2006 06:07:22 +0200
Subject: [PATCH 1/1] aac: make find_stco() return the first offset

rather than the number of offsets which is rather uninteresting.
Also, rename this function to aac_find_entry() and return the
correct number of frames to para_server.
---
 aac.h        |  2 +-
 aac_afh.c    |  6 +++---
 aac_common.c | 10 +++++-----
 aacdec.c     |  4 ++--
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/aac.h b/aac.h
index d1c0e3ac..373872e7 100644
--- a/aac.h
+++ b/aac.h
@@ -3,6 +3,6 @@
 /* exported symbols from aac_common.c */
 NeAACDecHandle aac_open(void);
 int aac_find_esds(unsigned char *buf, unsigned buflen, int *skip);
-int aac_find_stco(unsigned char *buf, unsigned buflen, int *skip);
+int aac_find_entry(unsigned char *buf, unsigned buflen, int *skip);
 int aac_find_stsz(unsigned char *buf, unsigned buflen, unsigned *skip);
 unsigned aac_read_int32(unsigned char *buf);
diff --git a/aac_afh.c b/aac_afh.c
index 9cab3920..93bcd427 100644
--- a/aac_afh.c
+++ b/aac_afh.c
@@ -128,8 +128,9 @@ static int aac_get_file_info(FILE *file, char *info_str, long unsigned *frames,
 	ret = read_stsz(skip);
 	if (ret < 0)
 		return ret;
+	*frames = num_chunks;
 	for (;;) {
-		ret = aac_find_stco(inbuf, inbuf_len, &skip);
+		ret = aac_find_entry(inbuf, inbuf_len, &skip);
 		if (ret >= 0)
 			break;
 		ret = read(fileno(infile), inbuf, inbuf_size);
@@ -137,8 +138,7 @@ static int aac_get_file_info(FILE *file, char *info_str, long unsigned *frames,
 			return -E_AAC_READ;
 		PARA_INFO_LOG("next buffer: %d bytes\n", ret);
 	}
-	*frames = ret;
-	entry = aac_read_int32(inbuf + skip);
+	entry = ret;
 	PARA_INFO_LOG("offset table has %d entries\, entry: %zd\n", num_chunks,
 		entry);
 #if 1
diff --git a/aac_common.c b/aac_common.c
index 3739be9d..9edeb1c5 100644
--- a/aac_common.c
+++ b/aac_common.c
@@ -74,18 +74,18 @@ unsigned aac_read_int32(unsigned char *buf)
 }
 
 
-int aac_find_stco(unsigned char *buf, unsigned buflen, int *skip)
+int aac_find_entry(unsigned char *buf, unsigned buflen, int *skip)
 {
 	int i, ret;
 
-	for (i = 0; i + 16 < buflen; i++) {
+	for (i = 0; i + 20 < buflen; i++) {
 		unsigned char *p = buf + i;
 
 		if (p[0] != 's' || p[1] != 't' || p[2] != 'c' || p[3] != 'o')
 			continue;
 		PARA_INFO_LOG("found stco@%d\n", i);
-		i += 8;
-		ret = aac_read_int32(buf + i);
+		i += 12;
+		ret = aac_read_int32(buf + i); /* first offset */
 		i += 4;
 		PARA_INFO_LOG("num entries: %d\n", ret);
 		*skip = i;
@@ -97,7 +97,7 @@ int aac_find_stco(unsigned char *buf, unsigned buflen, int *skip)
 
 int aac_find_stsz(unsigned char *buf, unsigned buflen, unsigned *skip)
 {
-	int i, ret;
+	int i;
 
 	for (i = 0; i + 16 < buflen; i++) {
 		unsigned char *p = buf + i;
diff --git a/aacdec.c b/aacdec.c
index c7bec164..54b42298 100644
--- a/aacdec.c
+++ b/aacdec.c
@@ -96,14 +96,14 @@ static ssize_t aacdec(char *input_buffer, size_t len, struct filter_node *fn)
 	if (padd->decoder_length > 0) {
 		consumed = 0;
 		if (!padd->entry) {
-			ret = aac_find_stco(inbuf + consumed, len - consumed,
+			ret = aac_find_entry(inbuf + consumed, len - consumed,
 				&skip);
 			if (ret < 0) {
 				ret = len;
 				goto out;
 			}
 			consumed += skip;
-			padd->entry = aac_read_int32(inbuf + consumed);
+			padd->entry = ret;
 			PARA_INFO_LOG("entry: %lu\n", padd->entry);
 		}
 		ret = len;
-- 
2.39.2