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121 lines
4.0 KiB
C
121 lines
4.0 KiB
C
// Some common tools
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// Copyright (C) 2003 Julien 'Cyrius' Coloos
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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// or visit http://www.gnu.org/licenses/gpl.html
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#ifndef __TOOLS_COMMON_MMREG_H__
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#define __TOOLS_COMMON_MMREG_H__
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#include "ac_common.h"
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#include "common_endian.h"
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//////////////////////////////////////////////////////////////////////
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// Some data 'copied' from mmreg.h (Microsoft files)
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#pragma pack(push,1)
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typedef struct w32waveformat_tag {
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uint16_le wFormatTag; /* format type */
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uint16_le nChannels; /* number of channels (i.e. mono, stereo...) */
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uint32_le nSamplesPerSec; /* sample rate */
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uint32_le nAvgBytesPerSec; /* for buffer estimation */
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uint16_le nBlockAlign; /* block size of data */
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} w32WAVEFORMAT;
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#define WAVE_FORMAT_PCM 1
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typedef struct w32pcmwaveformat_tag {
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w32WAVEFORMAT wf;
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uint16_le wBitsPerSample;
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} w32PCMWAVEFORMAT;
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#undef WAVE_FORMAT_MPEG
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#undef WAVE_FORMAT_MPEGLAYER3
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#ifndef WAVE_FORMAT_MPEG
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# define WAVE_FORMAT_MPEG 0x0050 // Microsoft Corporation
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#endif
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#ifndef WAVE_FORMAT_MPEGLAYER3
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# define WAVE_FORMAT_MPEGLAYER3 0x0055 // ISO/MPEG Layer3 Format Tag
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#endif
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#define WAVE_FORMAT_AC3 0x2000 // ATSC/A-52 (Dolby AC3)
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typedef struct tw32WAVEFORMATEX {
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uint16_le wFormatTag; // format type
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uint16_le nChannels; // number of channels (i.e. mono, stereo...)
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uint32_le nSamplesPerSec; // sample rate
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uint32_le nAvgBytesPerSec; // for buffer estimation
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uint16_le nBlockAlign; // block size of data
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uint16_le wBitsPerSample; // Number of bits per sample of mono data
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uint16_le cbSize; // The count in bytes of the size of extra information (after cbSize)
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} w32WAVEFORMATEX;
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// Microsoft MPEG audio WAV definition
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//
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// MPEG-1 audio wave format (audio layer only). (0x0050)
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typedef struct w32mpeg1waveformat_tag {
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w32WAVEFORMATEX wfx;
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uint16_le fwHeadLayer;
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uint32_le dwHeadBitrate;
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uint16_le fwHeadMode;
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uint16_le fwHeadModeExt;
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uint16_le wHeadEmphasis;
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uint16_le fwHeadFlags;
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uint32_le dwPTSLow;
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uint32_le dwPTSHigh;
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} w32MPEG1WAVEFORMAT;
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#define ACM_MPEG_LAYER1 (0x0001)
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#define ACM_MPEG_LAYER2 (0x0002)
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#define ACM_MPEG_LAYER3 (0x0004)
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#define ACM_MPEG_STEREO (0x0001)
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#define ACM_MPEG_JOINTSTEREO (0x0002)
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#define ACM_MPEG_DUALCHANNEL (0x0004)
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#define ACM_MPEG_SINGLECHANNEL (0x0008)
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#define ACM_MPEG_PRIVATEBIT (0x0001)
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#define ACM_MPEG_COPYRIGHT (0x0002)
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#define ACM_MPEG_ORIGINALHOME (0x0004)
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#define ACM_MPEG_PROTECTIONBIT (0x0008)
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#define ACM_MPEG_ID_MPEG1 (0x0010)
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// MPEG Layer3 WAVEFORMATEX structure
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// for WAVE_FORMAT_MPEGLAYER3 (0x0055)
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//
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#define MPEGLAYER3_WFX_EXTRA_BYTES 12
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// WAVE_FORMAT_MPEGLAYER3 format sructure
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//
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typedef struct w32mpeglayer3waveformat_tag {
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w32WAVEFORMATEX wfx;
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uint16_le wID;
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uint32_le fdwFlags;
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uint16_le nBlockSize;
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uint16_le nFramesPerBlock;
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uint16_le nCodecDelay;
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} w32MPEGLAYER3WAVEFORMAT;
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#define MPEGLAYER3_ID_UNKNOWN 0
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#define MPEGLAYER3_ID_MPEG 1
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#define MPEGLAYER3_ID_CONSTANTFRAMESIZE 2
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#define MPEGLAYER3_FLAG_PADDING_ISO 0x00000000
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#define MPEGLAYER3_FLAG_PADDING_ON 0x00000001
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#define MPEGLAYER3_FLAG_PADDING_OFF 0x00000002
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#pragma pack(pop)
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#endif // __TOOLS_COMMON_MMREG_H__
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