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output/jack: cache AudioFormat::channels

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This commit is contained in:
Max Kellermann 2014-12-24 23:04:29 +01:00
parent b83a1d79b7
commit ca88fc4ed3
1 changed files with 3 additions and 4 deletions
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7
src/output/plugins/JackOutputPlugin.cxx
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@ -643,15 +643,14 @@ mpd_jack_delay(AudioOutput *ao)
inline size_t inline size_t
JackOutput::WriteSamples(const float *src, size_t n_frames) JackOutput::WriteSamples(const float *src, size_t n_frames)
{ {
const unsigned n_channels = audio_format.channels;
const size_t result = n_frames; const size_t result = n_frames;
while (n_frames-- > 0) { while (n_frames-- > 0)
for (unsigned i = 0; i < audio_format.channels; ++i, ++src) { for (unsigned i = 0; i < n_channels; ++i, ++src)
jack_ringbuffer_write(ringbuffer[i], jack_ringbuffer_write(ringbuffer[i],
(const char *)src, (const char *)src,
sizeof(*src)); sizeof(*src));
}
}
return result; return result;
} }