- if(!s->header_size){
- for(i=0; i<buf_size; i++){
- state= (state<<8) | buf[i];
- if((state&0xFFFF0000FFFFFF00) == 0x8000000003120400ULL && (state&0xFF) && ((state>>32)&0xFFFF)>=4){
- s->header_size= ((state>>32)&0xFFFF) + 4;
- s->block_size = BLOCK_SIZE * (state&0xFF);
- s->remaining = i - 7 + s->header_size + s->block_size;
- break;
+ if (!s->header_size) {
+ for (i = 0; i < buf_size; i++) {
+ state = (state << 8) | buf[i];
+ /* check for fixed fields in ADX header for possible match */
+ if ((state & 0xFFFF0000FFFFFF00) == 0x8000000003120400ULL) {
+ int channels = state & 0xFF;
+ int header_size = ((state >> 32) & 0xFFFF) + 4;
+ if (channels > 0 && header_size >= 8) {
+ s->header_size = header_size;
+ s->block_size = BLOCK_SIZE * channels;
+ s->remaining = i - 7 + s->header_size + s->block_size;
+ break;
+ }