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-rw-r--r--src/pcm/PcmExport.cxx53
1 files changed, 21 insertions, 32 deletions
diff --git a/src/pcm/PcmExport.cxx b/src/pcm/PcmExport.cxx
index fc3ef57ca..e04a7fdd9 100644
--- a/src/pcm/PcmExport.cxx
+++ b/src/pcm/PcmExport.cxx
@@ -22,6 +22,7 @@
#include "PcmDsdUsb.hxx"
#include "PcmPack.hxx"
#include "util/ByteReverse.hxx"
+#include "util/ConstBuffer.hxx"
void
PcmExport::Open(SampleFormat sample_format, unsigned _channels,
@@ -71,59 +72,47 @@ PcmExport::GetFrameSize(const AudioFormat &audio_format) const
return audio_format.GetFrameSize();
}
-const void *
-PcmExport::Export(const void *data, size_t size, size_t &dest_size_r)
+ConstBuffer<void>
+PcmExport::Export(ConstBuffer<void> data)
{
if (dsd_usb)
- data = pcm_dsd_to_usb(dsd_buffer, channels,
- (const uint8_t *)data, size, &size);
+ data.data = pcm_dsd_to_usb(dsd_buffer, channels,
+ (const uint8_t *)data.data,
+ data.size, &data.size);
if (pack24) {
- assert(size % 4 == 0);
-
- const size_t num_samples = size / 4;
+ const auto src = ConstBuffer<int32_t>::FromVoid(data);
+ const size_t num_samples = src.size;
const size_t dest_size = num_samples * 3;
-
- const uint8_t *src8 = (const uint8_t *)data;
- const uint8_t *src_end8 = src8 + size;
uint8_t *dest = (uint8_t *)pack_buffer.Get(dest_size);
assert(dest != nullptr);
- pcm_pack_24(dest, (const int32_t *)src8,
- (const int32_t *)src_end8);
+ pcm_pack_24(dest, src.begin(), src.end());
- data = dest;
- size = dest_size;
+ data.data = dest;
+ data.size = dest_size;
} else if (shift8) {
- assert(size % 4 == 0);
-
- const uint8_t *src8 = (const uint8_t *)data;
- const uint8_t *src_end8 = src8 + size;
- const uint32_t *src = (const uint32_t *)src8;
- const uint32_t *const src_end = (const uint32_t *)src_end8;
+ const auto src = ConstBuffer<int32_t>::FromVoid(data);
- uint32_t *dest = (uint32_t *)pack_buffer.Get(size);
- data = dest;
+ uint32_t *dest = (uint32_t *)pack_buffer.Get(data.size);
+ data.data = dest;
- while (src < src_end)
- *dest++ = *src++ << 8;
+ for (auto i : src)
+ *dest++ = i << 8;
}
-
if (reverse_endian > 0) {
assert(reverse_endian >= 2);
- uint8_t *dest = (uint8_t *)reverse_buffer.Get(size);
- assert(dest != nullptr);
+ const auto src = ConstBuffer<uint8_t>::FromVoid(data);
- const uint8_t *src = (const uint8_t *)data;
- const uint8_t *src_end = src + size;
- reverse_bytes(dest, src, src_end, reverse_endian);
+ uint8_t *dest = (uint8_t *)reverse_buffer.Get(data.size);
+ assert(dest != nullptr);
+ data.data = dest;
- data = dest;
+ reverse_bytes(dest, src.begin(), src.end(), reverse_endian);
}
- dest_size_r = size;
return data;
}