X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=aac_afh.c;h=b7e828f4d7c76287e871fee87dc17023215a80ab;hb=2187e113d02a2257cbbb02902a942946ffdc2e7e;hp=93bcd427008e1ec088d9501394f5e1b5f108408f;hpb=eda995d5da0a91ab0c4fa6c3d30c5bcdf69d2828;p=paraslash.git

diff --git a/aac_afh.c b/aac_afh.c
index 93bcd427..b7e828f4 100644
--- a/aac_afh.c
+++ b/aac_afh.c
@@ -44,6 +44,32 @@ static void aac_close_audio_file(void)
 {
 }
 
+static int aac_find_stsz(unsigned char *buf, unsigned buflen, unsigned *skip)
+{
+	int i;
+
+	for (i = 0; i + 16 < buflen; i++) {
+		unsigned char *p = buf + i;
+		unsigned sample_count, sample_size;
+
+		if (p[0] != 's' || p[1] != 't' || p[2] != 's' || p[3] != 'z')
+			continue;
+		PARA_INFO_LOG("found stsz@%d\n", i);
+		i += 8;
+		sample_size = aac_read_int32(buf + i);
+		PARA_INFO_LOG("sample size: %d\n", sample_size);
+		i += 4;
+		sample_count = aac_read_int32(buf + i);
+		i += 4;
+		PARA_INFO_LOG("sample count: %d\n", sample_count);
+		*skip = i;
+		return sample_count;
+	}
+	PARA_WARNING_LOG("stsz not found, buflen: %d\n", buflen);
+	return -E_STCO;
+}
+
+
 static int read_stsz(unsigned skip)
 {
 	int ret, i;