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-rw-r--r--src/pcm/ChannelsConverter.cxx48
-rw-r--r--src/pcm/PcmChannels.cxx105
-rw-r--r--src/pcm/PcmChannels.hxx33
-rw-r--r--test/test_pcm_channels.cxx49
4 files changed, 95 insertions, 140 deletions
diff --git a/src/pcm/ChannelsConverter.cxx b/src/pcm/ChannelsConverter.cxx
index 5895fb15d..46197b7e0 100644
--- a/src/pcm/ChannelsConverter.cxx
+++ b/src/pcm/ChannelsConverter.cxx
@@ -62,11 +62,8 @@ PcmChannelsConverter::Close()
}
ConstBuffer<void>
-PcmChannelsConverter::Convert(ConstBuffer<void> src, Error &error)
+PcmChannelsConverter::Convert(ConstBuffer<void> src, gcc_unused Error &error)
{
- const void *result = nullptr;
- size_t result_size = 0;
-
switch (format) {
case SampleFormat::UNDEFINED:
case SampleFormat::S8:
@@ -75,41 +72,26 @@ PcmChannelsConverter::Convert(ConstBuffer<void> src, Error &error)
gcc_unreachable();
case SampleFormat::S16:
- result = pcm_convert_channels_16(buffer, dest_channels,
- src_channels,
- (const int16_t *)src.data,
- src.size, &result_size);
- break;
+ return pcm_convert_channels_16(buffer, dest_channels,
+ src_channels,
+ ConstBuffer<int16_t>::FromVoid(src)).ToVoid();
case SampleFormat::S24_P32:
- result = pcm_convert_channels_24(buffer, dest_channels,
- src_channels,
- (const int32_t *)src.data,
- src.size, &result_size);
- break;
+ return pcm_convert_channels_24(buffer, dest_channels,
+ src_channels,
+ ConstBuffer<int32_t>::FromVoid(src)).ToVoid();
case SampleFormat::S32:
- result = pcm_convert_channels_32(buffer, dest_channels,
- src_channels,
- (const int32_t *)src.data,
- src.size, &result_size);
- break;
+ return pcm_convert_channels_32(buffer, dest_channels,
+ src_channels,
+ ConstBuffer<int32_t>::FromVoid(src)).ToVoid();
case SampleFormat::FLOAT:
- result = pcm_convert_channels_float(buffer, dest_channels,
- src_channels,
- (const float *)src.data,
- src.size, &result_size);
- break;
- }
-
- if (result == nullptr) {
- error.Format(pcm_convert_domain,
- "Conversion from %u to %u channels "
- "is not implemented",
- src_channels, dest_channels);
- return nullptr;
+ return pcm_convert_channels_float(buffer, dest_channels,
+ src_channels,
+ ConstBuffer<float>::FromVoid(src)).ToVoid();
}
- return { result, result_size };
+ assert(false);
+ gcc_unreachable();
}
diff --git a/src/pcm/PcmChannels.cxx b/src/pcm/PcmChannels.cxx
index eb69985c1..74f9416f9 100644
--- a/src/pcm/PcmChannels.cxx
+++ b/src/pcm/PcmChannels.cxx
@@ -20,7 +20,7 @@
#include "config.h"
#include "PcmChannels.hxx"
#include "PcmBuffer.hxx"
-#include "PcmUtils.hxx"
+#include "util/ConstBuffer.hxx"
#include <assert.h>
@@ -73,31 +73,28 @@ pcm_convert_channels_16_n_to_2(int16_t *gcc_restrict dest,
}
}
-const int16_t *
+ConstBuffer<int16_t>
pcm_convert_channels_16(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const int16_t *src,
- size_t src_size, size_t *dest_size_r)
+ unsigned src_channels,
+ ConstBuffer<int16_t> src)
{
- assert(src_size % (sizeof(*src) * src_channels) == 0);
+ assert(src.size % src_channels == 0);
- size_t dest_size = src_size / src_channels * dest_channels;
- *dest_size_r = dest_size;
-
- int16_t *dest = (int16_t *)buffer.Get(dest_size);
- const int16_t *src_end = pcm_end_pointer(src, src_size);
+ const size_t dest_size = src.size / src_channels * dest_channels;
+ int16_t *dest = buffer.GetT<int16_t>(dest_size);
if (src_channels == 1 && dest_channels == 2)
- MonoToStereo(dest, src, src_end);
+ MonoToStereo(dest, src.begin(), src.end());
else if (src_channels == 2 && dest_channels == 1)
- pcm_convert_channels_16_2_to_1(dest, src, src_end);
+ pcm_convert_channels_16_2_to_1(dest, src.begin(), src.end());
else if (dest_channels == 2)
- pcm_convert_channels_16_n_to_2(dest, src_channels, src,
- src_end);
+ pcm_convert_channels_16_n_to_2(dest, src_channels,
+ src.begin(), src.end());
else
return nullptr;
- return dest;
+ return { dest, dest_size };
}
static void
@@ -136,32 +133,28 @@ pcm_convert_channels_24_n_to_2(int32_t *gcc_restrict dest,
}
}
-const int32_t *
+ConstBuffer<int32_t>
pcm_convert_channels_24(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const int32_t *src,
- size_t src_size, size_t *dest_size_r)
+ unsigned src_channels,
+ ConstBuffer<int32_t> src)
{
- assert(src_size % (sizeof(*src) * src_channels) == 0);
-
- size_t dest_size = src_size / src_channels * dest_channels;
- *dest_size_r = dest_size;
+ assert(src.size % src_channels == 0);
- int32_t *dest = (int32_t *)buffer.Get(dest_size);
- const int32_t *src_end = (const int32_t *)
- pcm_end_pointer(src, src_size);
+ size_t dest_size = src.size / src_channels * dest_channels;
+ int32_t *dest = buffer.GetT<int32_t>(dest_size);
if (src_channels == 1 && dest_channels == 2)
- MonoToStereo(dest, src, src_end);
+ MonoToStereo(dest, src.begin(), src.end());
else if (src_channels == 2 && dest_channels == 1)
- pcm_convert_channels_24_2_to_1(dest, src, src_end);
+ pcm_convert_channels_24_2_to_1(dest, src.begin(), src.end());
else if (dest_channels == 2)
- pcm_convert_channels_24_n_to_2(dest, src_channels, src,
- src_end);
+ pcm_convert_channels_24_n_to_2(dest, src_channels,
+ src.begin(), src.end());
else
return nullptr;
- return dest;
+ return { dest, dest_size };
}
static void
@@ -199,32 +192,28 @@ pcm_convert_channels_32_n_to_2(int32_t *dest,
}
}
-const int32_t *
+ConstBuffer<int32_t>
pcm_convert_channels_32(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const int32_t *src,
- size_t src_size, size_t *dest_size_r)
+ unsigned src_channels,
+ ConstBuffer<int32_t> src)
{
- assert(src_size % (sizeof(*src) * src_channels) == 0);
+ assert(src.size % src_channels == 0);
- size_t dest_size = src_size / src_channels * dest_channels;
- *dest_size_r = dest_size;
-
- int32_t *dest = (int32_t *)buffer.Get(dest_size);
- const int32_t *src_end = (const int32_t *)
- pcm_end_pointer(src, src_size);
+ size_t dest_size = src.size / src_channels * dest_channels;
+ int32_t *dest = buffer.GetT<int32_t>(dest_size);
if (src_channels == 1 && dest_channels == 2)
- MonoToStereo(dest, src, src_end);
+ MonoToStereo(dest, src.begin(), src.end());
else if (src_channels == 2 && dest_channels == 1)
- pcm_convert_channels_32_2_to_1(dest, src, src_end);
+ pcm_convert_channels_32_2_to_1(dest, src.begin(), src.end());
else if (dest_channels == 2)
- pcm_convert_channels_32_n_to_2(dest, src_channels, src,
- src_end);
+ pcm_convert_channels_32_n_to_2(dest, src_channels,
+ src.begin(), src.end());
else
return nullptr;
- return dest;
+ return { dest, dest_size };
}
static void
@@ -262,29 +251,27 @@ pcm_convert_channels_float_n_to_2(float *dest,
}
}
-const float *
+ConstBuffer<float>
pcm_convert_channels_float(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const float *src,
- size_t src_size, size_t *dest_size_r)
+ unsigned src_channels,
+ ConstBuffer<float> src)
{
- assert(src_size % (sizeof(*src) * src_channels) == 0);
-
- size_t dest_size = src_size / src_channels * dest_channels;
- *dest_size_r = dest_size;
+ assert(src.size % src_channels == 0);
- float *dest = (float *)buffer.Get(dest_size);
- const float *src_end = (const float *)pcm_end_pointer(src, src_size);
+ size_t dest_size = src.size / src_channels * dest_channels;
+ float *dest = buffer.GetT<float>(dest_size);
if (src_channels == 1 && dest_channels == 2)
- MonoToStereo(dest, src, src_end);
+ MonoToStereo(dest, src.begin(), src.end());
else if (src_channels == 2 && dest_channels == 1)
- pcm_convert_channels_float_2_to_1(dest, src, src_end);
+ pcm_convert_channels_float_2_to_1(dest,
+ src.begin(), src.end());
else if (dest_channels == 2)
- pcm_convert_channels_float_n_to_2(dest, src_channels, src,
- src_end);
+ pcm_convert_channels_float_n_to_2(dest, src_channels,
+ src.begin(), src.end());
else
return nullptr;
- return dest;
+ return { dest, dest_size };
}
diff --git a/src/pcm/PcmChannels.hxx b/src/pcm/PcmChannels.hxx
index c67822825..ca4e06a8c 100644
--- a/src/pcm/PcmChannels.hxx
+++ b/src/pcm/PcmChannels.hxx
@@ -24,6 +24,7 @@
#include <stddef.h>
class PcmBuffer;
+template<typename T> struct ConstBuffer;
/**
* Changes the number of channels in 16 bit PCM data.
@@ -32,15 +33,13 @@ class PcmBuffer;
* @param dest_channels the number of channels requested
* @param src_channels the number of channels in the source buffer
* @param src the source PCM buffer
- * @param src_size the number of bytes in #src
- * @param dest_size_r returns the number of bytes of the destination buffer
* @return the destination buffer
*/
-const int16_t *
+ConstBuffer<int16_t>
pcm_convert_channels_16(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const int16_t *src,
- size_t src_size, size_t *dest_size_r);
+ unsigned src_channels,
+ ConstBuffer<int16_t> src);
/**
* Changes the number of channels in 24 bit PCM data (aligned at 32
@@ -50,15 +49,13 @@ pcm_convert_channels_16(PcmBuffer &buffer,
* @param dest_channels the number of channels requested
* @param src_channels the number of channels in the source buffer
* @param src the source PCM buffer
- * @param src_size the number of bytes in #src
- * @param dest_size_r returns the number of bytes of the destination buffer
* @return the destination buffer
*/
-const int32_t *
+ConstBuffer<int32_t>
pcm_convert_channels_24(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const int32_t *src,
- size_t src_size, size_t *dest_size_r);
+ unsigned src_channels,
+ ConstBuffer<int32_t> src);
/**
* Changes the number of channels in 32 bit PCM data.
@@ -67,15 +64,13 @@ pcm_convert_channels_24(PcmBuffer &buffer,
* @param dest_channels the number of channels requested
* @param src_channels the number of channels in the source buffer
* @param src the source PCM buffer
- * @param src_size the number of bytes in #src
- * @param dest_size_r returns the number of bytes of the destination buffer
* @return the destination buffer
*/
-const int32_t *
+ConstBuffer<int32_t>
pcm_convert_channels_32(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const int32_t *src,
- size_t src_size, size_t *dest_size_r);
+ unsigned src_channels,
+ ConstBuffer<int32_t> src);
/**
* Changes the number of channels in 32 bit float PCM data.
@@ -84,14 +79,12 @@ pcm_convert_channels_32(PcmBuffer &buffer,
* @param dest_channels the number of channels requested
* @param src_channels the number of channels in the source buffer
* @param src the source PCM buffer
- * @param src_size the number of bytes in #src
- * @param dest_size_r returns the number of bytes of the destination buffer
* @return the destination buffer
*/
-const float *
+ConstBuffer<float>
pcm_convert_channels_float(PcmBuffer &buffer,
unsigned dest_channels,
- unsigned src_channels, const float *src,
- size_t src_size, size_t *dest_size_r);
+ unsigned src_channels,
+ ConstBuffer<float> src);
#endif
diff --git a/test/test_pcm_channels.cxx b/test/test_pcm_channels.cxx
index 85c872674..355553687 100644
--- a/test/test_pcm_channels.cxx
+++ b/test/test_pcm_channels.cxx
@@ -22,67 +22,60 @@
#include "test_pcm_util.hxx"
#include "pcm/PcmChannels.hxx"
#include "pcm/PcmBuffer.hxx"
+#include "util/ConstBuffer.hxx"
void
PcmChannelsTest::TestChannels16()
{
- constexpr unsigned N = 256;
+ constexpr size_t N = 256;
const auto src = TestDataBuffer<int16_t, N * 2>();
PcmBuffer buffer;
/* stereo to mono */
- size_t dest_size;
- const int16_t *dest =
- pcm_convert_channels_16(buffer, 1, 2, src, sizeof(src),
- &dest_size);
- CPPUNIT_ASSERT(dest != NULL);
- CPPUNIT_ASSERT_EQUAL(sizeof(src) / 2, dest_size);
+ auto dest = pcm_convert_channels_16(buffer, 1, 2, { src, N * 2 });
+ CPPUNIT_ASSERT(!dest.IsNull());
+ CPPUNIT_ASSERT_EQUAL(N, dest.size);
for (unsigned i = 0; i < N; ++i)
CPPUNIT_ASSERT_EQUAL(int16_t((src[i * 2] + src[i * 2 + 1]) / 2),
- dest[i]);
+ dest.data[i]);
/* mono to stereo */
- dest = pcm_convert_channels_16(buffer, 2, 1, src, sizeof(src),
- &dest_size);
- CPPUNIT_ASSERT(dest != NULL);
- CPPUNIT_ASSERT_EQUAL(sizeof(src) * 2, dest_size);
+ dest = pcm_convert_channels_16(buffer, 2, 1, { src, N * 2 });
+ CPPUNIT_ASSERT(!dest.IsNull());
+ CPPUNIT_ASSERT_EQUAL(N * 4, dest.size);
for (unsigned i = 0; i < N; ++i) {
- CPPUNIT_ASSERT_EQUAL(src[i], dest[i * 2]);
- CPPUNIT_ASSERT_EQUAL(src[i], dest[i * 2 + 1]);
+ CPPUNIT_ASSERT_EQUAL(src[i], dest.data[i * 2]);
+ CPPUNIT_ASSERT_EQUAL(src[i], dest.data[i * 2 + 1]);
}
}
void
PcmChannelsTest::TestChannels32()
{
- constexpr unsigned N = 256;
+ constexpr size_t N = 256;
const auto src = TestDataBuffer<int32_t, N * 2>();
PcmBuffer buffer;
/* stereo to mono */
- size_t dest_size;
- const int32_t *dest =
- pcm_convert_channels_32(buffer, 1, 2, src, sizeof(src),
- &dest_size);
- CPPUNIT_ASSERT(dest != NULL);
- CPPUNIT_ASSERT_EQUAL(sizeof(src) / 2, dest_size);
+ auto dest = pcm_convert_channels_32(buffer, 1, 2, { src, N * 2 });
+ CPPUNIT_ASSERT(!dest.IsNull());
+ CPPUNIT_ASSERT_EQUAL(N, dest.size);
for (unsigned i = 0; i < N; ++i)
CPPUNIT_ASSERT_EQUAL(int32_t(((int64_t)src[i * 2] + (int64_t)src[i * 2 + 1]) / 2),
- dest[i]);
+ dest.data[i]);
/* mono to stereo */
- dest = pcm_convert_channels_32(buffer, 2, 1, src, sizeof(src),
- &dest_size);
- CPPUNIT_ASSERT(dest != NULL);
- CPPUNIT_ASSERT_EQUAL(sizeof(src) * 2, dest_size);
+ dest = pcm_convert_channels_32(buffer, 2, 1, { src, N * 2 });
+ CPPUNIT_ASSERT(!dest.IsNull());
+ CPPUNIT_ASSERT_EQUAL(N * 4, dest.size);
for (unsigned i = 0; i < N; ++i) {
- CPPUNIT_ASSERT_EQUAL(src[i], dest[i * 2]);
- CPPUNIT_ASSERT_EQUAL(src[i], dest[i * 2 + 1]);
+ CPPUNIT_ASSERT_EQUAL(src[i], dest.data[i * 2]);
+ CPPUNIT_ASSERT_EQUAL(src[i], dest.data[i * 2 + 1]);
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 06:35:44 +0000