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PcmChannels: merge duplicate code with a template

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This commit is contained in:
Max Kellermann 2013-01-31 21:37:03 +01:00
parent bf35972714
commit e6a91d291d
1 changed files with 9 additions and 38 deletions
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47
src/PcmChannels.cxx
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@ -24,17 +24,17 @@
#include <assert.h>
template<typename D, typename S>
static void
pcm_convert_channels_16_1_to_2(int16_t *restrict dest,
const int16_t *restrict src,
const int16_t *restrict src_end)
MonoToStereo(D dest, S src, S end)
{
while (src < src_end) {
int16_t value = *src++;
while (src != end) {
const auto value = *src++;
*dest++ = value;
*dest++ = value;
}
}
static void
@ -88,7 +88,7 @@ pcm_convert_channels_16(struct pcm_buffer *buffer,
const int16_t *src_end = pcm_end_pointer(src, src_size);
if (src_channels == 1 && dest_channels == 2)
pcm_convert_channels_16_1_to_2(dest, src, src_end);
MonoToStereo(dest, src, src_end);
else if (src_channels == 2 && dest_channels == 1)
pcm_convert_channels_16_2_to_1(dest, src, src_end);
else if (dest_channels == 2)
@ -100,19 +100,6 @@ pcm_convert_channels_16(struct pcm_buffer *buffer,
return dest;
}
static void
pcm_convert_channels_24_1_to_2(int32_t *restrict dest,
const int32_t *restrict src,
const int32_t *restrict src_end)
{
while (src < src_end) {
int32_t value = *src++;
*dest++ = value;
*dest++ = value;
}
}
static void
pcm_convert_channels_24_2_to_1(int32_t *restrict dest,
const int32_t *restrict src,
@ -165,7 +152,7 @@ pcm_convert_channels_24(struct pcm_buffer *buffer,
pcm_end_pointer(src, src_size);
if (src_channels == 1 && dest_channels == 2)
pcm_convert_channels_24_1_to_2(dest, src, src_end);
MonoToStereo(dest, src, src_end);
else if (src_channels == 2 && dest_channels == 1)
pcm_convert_channels_24_2_to_1(dest, src, src_end);
else if (dest_channels == 2)
@ -177,13 +164,6 @@ pcm_convert_channels_24(struct pcm_buffer *buffer,
return dest;
}
static void
pcm_convert_channels_32_1_to_2(int32_t *dest, const int32_t *src,
const int32_t *src_end)
{
pcm_convert_channels_24_1_to_2(dest, src, src_end);
}
static void
pcm_convert_channels_32_2_to_1(int32_t *restrict dest,
const int32_t *restrict src,
@ -235,7 +215,7 @@ pcm_convert_channels_32(struct pcm_buffer *buffer,
pcm_end_pointer(src, src_size);
if (src_channels == 1 && dest_channels == 2)
pcm_convert_channels_32_1_to_2(dest, src, src_end);
MonoToStereo(dest, src, src_end);
else if (src_channels == 2 && dest_channels == 1)
pcm_convert_channels_32_2_to_1(dest, src, src_end);
else if (dest_channels == 2)
@ -247,15 +227,6 @@ pcm_convert_channels_32(struct pcm_buffer *buffer,
return dest;
}
static void
pcm_convert_channels_float_1_to_2(float *dest, const float *src,
const float *src_end)
{
pcm_convert_channels_24_1_to_2((int32_t *)dest,
(const int32_t *)src,
(const int32_t *)src_end);
}
static void
pcm_convert_channels_float_2_to_1(float *restrict dest,
const float *restrict src,
@ -306,7 +277,7 @@ pcm_convert_channels_float(struct pcm_buffer *buffer,
const float *src_end = (const float *)pcm_end_pointer(src, src_size);
if (src_channels == 1 && dest_channels == 2)
pcm_convert_channels_float_1_to_2(dest, src, src_end);
MonoToStereo(dest, src, src_end);
else if (src_channels == 2 && dest_channels == 1)
pcm_convert_channels_float_2_to_1(dest, src, src_end);
else if (dest_channels == 2)