ceareg.h revision 1.1.18.2
1 1.1.18.2 jdolecek /* $NetBSD: ceareg.h,v 1.1.18.2 2017/12/03 11:37:01 jdolecek Exp $ */ 2 1.1.18.2 jdolecek 3 1.1.18.2 jdolecek /* 4 1.1.18.2 jdolecek * Copyright (c) 2011 Jared D. McNeill <jmcneill (at) invisible.ca> 5 1.1.18.2 jdolecek * All rights reserved. 6 1.1.18.2 jdolecek * 7 1.1.18.2 jdolecek * Redistribution and use in source and binary forms, with or without 8 1.1.18.2 jdolecek * modification, are permitted provided that the following conditions 9 1.1.18.2 jdolecek * are met: 10 1.1.18.2 jdolecek * 1. Redistributions of source code must retain the above copyright 11 1.1.18.2 jdolecek * notice, this list of conditions and the following disclaimer. 12 1.1.18.2 jdolecek * 2. The name of the author may not be used to endorse or promote products 13 1.1.18.2 jdolecek * derived from this software without specific prior written permission. 14 1.1.18.2 jdolecek * 15 1.1.18.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 1.1.18.2 jdolecek * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 1.1.18.2 jdolecek * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 1.1.18.2 jdolecek * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 1.1.18.2 jdolecek * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 1.1.18.2 jdolecek * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 1.1.18.2 jdolecek * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 1.1.18.2 jdolecek * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 1.1.18.2 jdolecek * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.1.18.2 jdolecek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.1.18.2 jdolecek * SUCH DAMAGE. 26 1.1.18.2 jdolecek */ 27 1.1.18.2 jdolecek 28 1.1.18.2 jdolecek #ifndef _CEAREG_H 29 1.1.18.2 jdolecek #define _CEAREG_H 30 1.1.18.2 jdolecek 31 1.1.18.2 jdolecek /* short audio descriptor */ 32 1.1.18.2 jdolecek struct cea_sad { 33 1.1.18.2 jdolecek uint8_t flags1; 34 1.1.18.2 jdolecek uint8_t sample_rates; 35 1.1.18.2 jdolecek uint8_t flags2; 36 1.1.18.2 jdolecek } __packed; 37 1.1.18.2 jdolecek 38 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT(desc) (((desc)->flags1 >> 3) & 0x0f) 39 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_LPCM 1 40 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_AC3 2 41 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_MPEG1_L12 3 42 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_MPEG1_L3 4 43 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_MPEG2 5 44 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_AAC 6 45 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_DTS 7 46 1.1.18.2 jdolecek #define CEA_AUDIO_FORMAT_ATRAC 8 47 1.1.18.2 jdolecek #define CEA_MAX_CHANNELS(desc) ((((desc)->flags1 >> 0) & 0x07) + 1) 48 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE(desc) ((desc)->sample_rates) 49 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE_192K 0x40 50 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE_176K 0x20 51 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE_96K 0x10 52 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE_88K 0x08 53 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE_48K 0x04 54 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE_44K 0x02 55 1.1.18.2 jdolecek #define CEA_SAMPLE_RATE_32K 0x01 56 1.1.18.2 jdolecek /* uncompressed */ 57 1.1.18.2 jdolecek #define CEA_PRECISION(desc) ((desc)->flags2 & 0x07) 58 1.1.18.2 jdolecek #define CEA_PRECISION_24BIT 0x4 59 1.1.18.2 jdolecek #define CEA_PRECISION_20BIT 0x2 60 1.1.18.2 jdolecek #define CEA_PRECISION_16BIT 0x1 61 1.1.18.2 jdolecek /* compressed */ 62 1.1.18.2 jdolecek #define CEA_MAX_BITRATE(desc) ((uint32_t)(desc)->flags2 * 8000) 63 1.1.18.2 jdolecek 64 1.1.18.2 jdolecek #endif /* !_CEAREG_H */ 65
Indexes created Thu Oct 23 18:09:57 GMT 2025