* Ahead Software AG
*/
-/** \file aac_ccomon.c common functions of aac_afh and aadcec */
+/** \file aac_common.c common functions of aac_afh and aadcec */
#include "para.h"
#include "aac.h"
return length;
}
-int aac_find_esds(unsigned char *buf, unsigned buflen, int *skip)
+/**
+ * search for the position and the length of the decoder configuration
+ *
+ * \param buf buffer to seach
+ * \param buflen length of \a buf
+ * \param skip Upon succesful return, this contains the offset in \a buf where
+ * the decoder config starts.
+ *
+ * \return The length of the decoder configuration
+ */
+ssize_t aac_find_esds(unsigned char *buf, size_t buflen, size_t *skip)
{
- int i;
+ size_t i;
for (i = 0; i + 4 < buflen; i++) {
unsigned char *p = buf + i;
continue;
i += 8;
p = buf + i;
- PARA_INFO_LOG("found esds@%d, next: %x\n", i, *p);
+ PARA_INFO_LOG("found esds@%zu, next: %x\n", i, *p);
if (*p == 3)
i += 8;
else
return -E_ESDS;
}
-unsigned aac_read_int32(unsigned char *buf)
-{
- uint8_t *d = (uint8_t*)buf;
- return (d[0] << 24) | (d[1] << 16) | (d[2] << 8) | d[3];
-}
-
/**
* search for the first entry in the stco table
*
* \return the position of the first entry in the table on success,
* -E_STCO on errors.
*/
-
-int aac_find_entry_point(unsigned char *buf, unsigned buflen, int *skip)
+ssize_t aac_find_entry_point(unsigned char *buf, size_t buflen, size_t *skip)
{
- int i, ret;
+ ssize_t ret;
+ size_t 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);
+ PARA_INFO_LOG("found stco@%zu\n", i);
i += 12;
ret = aac_read_int32(buf + i); /* first offset */
i += 4;
- PARA_INFO_LOG("num entries: %d\n", ret);
+ PARA_INFO_LOG("entry point: %zd\n", ret);
*skip = i;
return ret;
}
- PARA_WARNING_LOG("stco not found, buflen: %d\n", buflen);
+ PARA_WARNING_LOG("stco not found, buflen: %zu\n", buflen);
return -E_STCO;
}
-