/*
 * aac helper
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#ifndef acc_123
#define acc_123

#define AAC_HEADER_LENGTH       7

static inline int HasADTSHeader(uint8_t *data, int size)
{
	if (size >= AAC_HEADER_LENGTH && 0xFF == data[0] && 0xF0 == (0xF0 & data[1]) &&
	    size == ((data[3] & 0x3) << 11 | data[4] << 3 | data[5] >> 5))
	{
		return 1;
	}

	return 0;
}

static inline int aac_get_sample_rate_index(uint32_t sample_rate)
{
	if (96000 <= sample_rate)
		return 0;
	else if (88200 <= sample_rate)
		return 1;
	else if (64000 <= sample_rate)
		return 2;
	else if (48000 <= sample_rate)
		return 3;
	else if (44100 <= sample_rate)
		return 4;
	else if (32000 <= sample_rate)
		return 5;
	else if (24000 <= sample_rate)
		return 6;
	else if (22050 <= sample_rate)
		return 7;
	else if (16000 <= sample_rate)
		return 8;
	else if (12000 <= sample_rate)
		return 9;
	else if (11025 <= sample_rate)
		return 10;
	else if (8000 <= sample_rate)
		return 11;
	else if (7350 <= sample_rate)
		return 12;
	else
		return 13;
}

#endif