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| author | Max Kellermann <max@duempel.org> | 2015-06-22 17:27:29 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2015-06-22 17:27:29 +0200 |
| commit | b4fc2e38ab344b80bd3b1b6d613774b5caf560f6 (patch) | |
| tree | 95e076cf5983cc30abbe131e799fd12a0992e7da /src/pcm/Interleave.cxx | |
| parent | 16639f9d71a11f2d63df84c7ec660f2a9bd5f526 (diff) | |
| download | mpd-b4fc2e38ab344b80bd3b1b6d613774b5caf560f6.tar.gz mpd-b4fc2e38ab344b80bd3b1b6d613774b5caf560f6.tar.xz mpd-b4fc2e38ab344b80bd3b1b6d613774b5caf560f6.zip | |
pcm/Interleave: add stereo optimization
Diffstat (limited to 'src/pcm/Interleave.cxx')
| -rw-r--r-- | src/pcm/Interleave.cxx | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/pcm/Interleave.cxx b/src/pcm/Interleave.cxx index 1152a7070..ed9fc125d 100644 --- a/src/pcm/Interleave.cxx +++ b/src/pcm/Interleave.cxx @@ -38,10 +38,29 @@ GenericPcmInterleave(uint8_t *gcc_restrict dest, template<typename T> static void +PcmInterleaveStereo(T *gcc_restrict dest, + const T *gcc_restrict src1, + const T *gcc_restrict src2, + size_t n_frames) +{ + for (size_t i = 0; i != n_frames; ++i) { + *dest++ = *src1++; + *dest++ = *src2++; + } +} + +template<typename T> +static void PcmInterleaveT(T *gcc_restrict dest, const ConstBuffer<const T *> src, size_t n_frames) { + switch (src.size) { + case 2: + PcmInterleaveStereo(dest, src[0], src[1], n_frames); + return; + } + for (const auto *s : src) { auto *d = dest++; |