The return value of audio_linear_dither() is always casted to
mpd_sint16. Returning long does not make sense, and consumed 8 bytes
on a 64 bit platform.
---
src/inputPlugins/mp3_plugin.c | 20 +++++++++-----------
1 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/src/inputPlugins/mp3_plugin.c b/src/inputPlugins/mp3_plugin.c
index 2aa7798..f31a616 100644
--- a/src/inputPlugins/mp3_plugin.c
+++ b/src/inputPlugins/mp3_plugin.c
@@ -60,8 +60,8 @@ static unsigned long prng(unsigned long state)
return (state * 0x0019660dL + 0x3c6ef35fL) & 0xffffffffL;
}
-static signed long audio_linear_dither(unsigned int bits, mad_fixed_t sample,
- struct audio_dither *dither)
+static mpd_sint16 audio_linear_dither(unsigned int bits, mad_fixed_t sample,
+ struct audio_dither *dither)
{
unsigned int scalebits;
mad_fixed_t output, mask, rnd;
@@ -102,7 +102,7 @@ static signed long audio_linear_dither(unsigned int bits,
mad_fixed_t sample,
dither->error[0] = sample - output;
- return output >> scalebits;
+ return (mpd_sint16)(output >> scalebits);
}
static unsigned dither_buffer(mpd_sint16 *dest0, const struct mad_synth *synth,
@@ -114,16 +114,14 @@ static unsigned dither_buffer(mpd_sint16 *dest0, const
struct mad_synth *synth,
unsigned int i;
for (i = start; i < end; ++i) {
- *dest++ = (mpd_sint16)
- audio_linear_dither(16,
- synth->pcm.samples[0][i],
- dither);
+ *dest++ = audio_linear_dither(16,
+ synth->pcm.samples[0][i],
+ dither);
if (num_channels == 2)
- *dest++ = (mpd_sint16)
- audio_linear_dither(16,
- synth->pcm.samples[1][i],
- dither);
+ *dest++ = audio_linear_dither(16,
+ synth->pcm.samples[1][i],
+ dither);
}
return dest - dest0;
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