+static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
+ int *need_next_header, int *new_frame_start)
+{
+ GetBitContext bits;
+ AACADTSHeaderInfo hdr;
+ int size;
+ union {
+ uint64_t u64;
+ uint8_t u8[8];
+ } tmp;
+
+ tmp.u64 = be2me_64(state);
+ init_get_bits(&bits, tmp.u8+8-AAC_HEADER_SIZE, AAC_HEADER_SIZE * 8);
+
+ if ((size = ff_aac_parse_header(&bits, &hdr)) < 0)
+ return 0;
+ *need_next_header = 0;
+ *new_frame_start = 1;
+ hdr_info->sample_rate = hdr.sample_rate;
+ hdr_info->channels = ff_mpeg4audio_channels[hdr.chan_config];
+ hdr_info->samples = hdr.samples;
+ hdr_info->bit_rate = hdr.bit_rate;
+ return size;
+}
+