Mercurial > SDL_sound_CoreAudio

annotate decoders/timidity/output.h @ 591:8faf61a640f0 tip

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Resynced fixes for unit conversion bugs in the Ogg Tremor decoder from SoundDecoder/ALmixer. Ogg Vorbis uses seconds and we multiply by 1000 to convert to milliseconds. But Ogg Tremor already uses milliseconds but I was still multiplying by 1000.
author Eric Wing <ewing . public |-at-| gmail . com>
date Thu, 25 Oct 2012 16:34:18 -0700
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rev   line source
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1 /*
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2
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3 TiMidity -- Experimental MIDI to WAVE converter
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4 Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
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5
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6 This program is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program; if not, write to the Free Software
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18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19
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20 output.h
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21
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22 */
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23
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24 /* Data format encoding bits */
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25
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26 #define PE_MONO 0x01 /* versus stereo */
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27 #define PE_SIGNED 0x02 /* versus unsigned */
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28 #define PE_16BIT 0x04 /* versus 8-bit */
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29
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30 /* Conversion functions -- These overwrite the Sint32 data in *lp with
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31 data in another format */
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32
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33 /* 8-bit signed and unsigned*/
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34 extern void s32tos8(void *dp, Sint32 *lp, Sint32 c);
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35 extern void s32tou8(void *dp, Sint32 *lp, Sint32 c);
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36
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37 /* 16-bit */
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38 extern void s32tos16(void *dp, Sint32 *lp, Sint32 c);
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39 extern void s32tou16(void *dp, Sint32 *lp, Sint32 c);
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40
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41 /* byte-exchanged 16-bit */
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42 extern void s32tos16x(void *dp, Sint32 *lp, Sint32 c);
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43 extern void s32tou16x(void *dp, Sint32 *lp, Sint32 c);
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44
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45 /* little-endian and big-endian specific */
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46 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
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47 #define s32tou16l s32tou16
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48 #define s32tou16b s32tou16x
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49 #define s32tos16l s32tos16
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50 #define s32tos16b s32tos16x
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51 #else
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52 #define s32tou16l s32tou16x
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53 #define s32tou16b s32tou16
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54 #define s32tos16l s32tos16x
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55 #define s32tos16b s32tos16
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56 #endif