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Diffstat (limited to 'src/pcm/Interleave.hxx')
-rw-r--r-- | src/pcm/Interleave.hxx | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/pcm/Interleave.hxx b/src/pcm/Interleave.hxx new file mode 100644 index 000000000..3cb117d80 --- /dev/null +++ b/src/pcm/Interleave.hxx @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2003-2015 The Music Player Daemon Project + * http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MPD_PCM_INTERLEAVE_HXX +#define MPD_PCM_INTERLEAVE_HXX + +#include "check.h" +#include "Compiler.h" +#include "util/ConstBuffer.hxx" + +#include <stdint.h> + +/** + * Interleave planar PCM samples from #src to #dest. + */ +void +PcmInterleave(void *gcc_restrict dest, ConstBuffer<const void *> src, + size_t n_frames, size_t sample_size); + +/** + * A variant of PcmInterleave() that assumes 32 bit samples (4 bytes + * per sample). + */ +void +PcmInterleave32(int32_t *gcc_restrict dest, ConstBuffer<const int32_t *> src, + size_t n_frames); + +static inline void +PcmInterleaveFloat(float *gcc_restrict dest, ConstBuffer<const float *> src, + size_t n_frames) +{ + PcmInterleave32((int32_t *)dest, + ConstBuffer<const int32_t *>((const int32_t *const*)src.data, + src.size), + n_frames); +} + +#endif |