ResidualVM logo ResidualVM website - Forums - Contact us BuildBot - Doxygen - Wiki curved edge

audio/decoders/util.h

Go to the documentation of this file.
00001 /* ResidualVM - A 3D game interpreter
00002  *
00003  * ResidualVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the AUTHORS
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef AUDIO_DECODERS_UTIL_H
00024 #define AUDIO_DECODERS_UTIL_H
00025 
00026 #include "common/types.h"
00027 #include "common/util.h"
00028 
00029 namespace Audio {
00030 
00031 // Convert one float sample into a int16 sample
00032 static inline int16 floatToInt16(float src) {
00033     return (int16) CLIP<int>((int) floor(src + 0.5), -32768, 32767);
00034 }
00035 
00036 // Convert planar float samples into interleaved int16 samples
00037 static inline void floatToInt16Interleave(int16 *dst, const float **src,
00038                                           uint32 length, uint8 channels) {
00039     if (channels == 2) {
00040         for (uint32 i = 0; i < length; i++) {
00041             dst[2 * i    ] = floatToInt16(src[0][i]);
00042             dst[2 * i + 1] = floatToInt16(src[1][i]);
00043         }
00044     } else {
00045         for (uint8 c = 0; c < channels; c++)
00046             for (uint32 i = 0, j = c; i < length; i++, j += channels)
00047                 dst[j] = floatToInt16(src[c][i]);
00048     }
00049 }
00050 
00051 } // End of namespace Audio
00052 
00053 #endif // AUDIO_DECODERS_UTIL_H


Generated on Sat May 25 2019 05:00:56 for ResidualVM by doxygen 1.7.1
curved edge   curved edge