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53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef AUDIO_DECODERS_UTIL_H
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#define AUDIO_DECODERS_UTIL_H
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#include "common/types.h"
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#include "common/util.h"
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namespace Audio {
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// Convert one float sample into a int16 sample
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static inline int16 floatToInt16(float src) {
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return (int16) CLIP<int>((int) floor(src + 0.5), -32768, 32767);
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}
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// Convert planar float samples into interleaved int16 samples
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static inline void floatToInt16Interleave(int16 *dst, const float **src,
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uint32 length, uint8 channels) {
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if (channels == 2) {
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for (uint32 i = 0; i < length; i++) {
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dst[2 * i ] = floatToInt16(src[0][i]);
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dst[2 * i + 1] = floatToInt16(src[1][i]);
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}
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} else {
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for (uint8 c = 0; c < channels; c++)
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for (uint32 i = 0, j = c; i < length; i++, j += channels)
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dst[j] = floatToInt16(src[c][i]);
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}
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}
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} // End of namespace Audio
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#endif // AUDIO_DECODERS_UTIL_H
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