diff options
Diffstat (limited to 'src/pcm/PcmFormat.cxx')
| -rw-r--r-- | src/pcm/PcmFormat.cxx | 532 |
1 files changed, 192 insertions, 340 deletions
diff --git a/src/pcm/PcmFormat.cxx b/src/pcm/PcmFormat.cxx index 4565c71c6..4cabc05a0 100644 --- a/src/pcm/PcmFormat.cxx +++ b/src/pcm/PcmFormat.cxx @@ -1,5 +1,5 @@ /* - * Copyright (C) 2003-2013 The Music Player Daemon Project + * Copyright (C) 2003-2014 The Music Player Daemon Project * http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify @@ -19,171 +19,150 @@ #include "config.h" #include "PcmFormat.hxx" -#include "PcmDither.hxx" #include "PcmBuffer.hxx" #include "PcmUtils.hxx" +#include "Traits.hxx" +#include "FloatConvert.hxx" +#include "ShiftConvert.hxx" +#include "util/ConstBuffer.hxx" -#include <type_traits> +#include "PcmDither.cxx" // including the .cxx file to get inlined templates -template<SampleFormat F> -struct SampleTraits {}; +/** + * Wrapper for a class that converts one sample at a time into one + * that converts a buffer at a time. + */ +template<typename C> +struct PerSampleConvert : C { + typedef typename C::SrcTraits SrcTraits; + typedef typename C::DstTraits DstTraits; + + void Convert(typename DstTraits::pointer_type gcc_restrict out, + typename SrcTraits::const_pointer_type gcc_restrict in, + size_t n) const { + for (size_t i = 0; i != n; ++i) + out[i] = C::Convert(in[i]); + } +}; -template<> -struct SampleTraits<SampleFormat::S8> { - typedef int8_t value_type; - typedef value_type *pointer_type; - typedef const value_type *const_pointer_type; +struct Convert8To16 + : PerSampleConvert<LeftShiftSampleConvert<SampleFormat::S8, + SampleFormat::S16>> {}; - static constexpr size_t SAMPLE_SIZE = sizeof(value_type); - static constexpr unsigned BITS = sizeof(value_type) * 8; -}; +struct Convert24To16 { + typedef SampleTraits<SampleFormat::S24_P32> SrcTraits; + typedef SampleTraits<SampleFormat::S16> DstTraits; -template<> -struct SampleTraits<SampleFormat::S16> { - typedef int16_t value_type; - typedef value_type *pointer_type; - typedef const value_type *const_pointer_type; + PcmDither &dither; - static constexpr size_t SAMPLE_SIZE = sizeof(value_type); - static constexpr unsigned BITS = sizeof(value_type) * 8; + Convert24To16(PcmDither &_dither):dither(_dither) {} + + void Convert(int16_t *out, const int32_t *in, size_t n) { + dither.Dither24To16(out, in, in + n); + } }; -template<> -struct SampleTraits<SampleFormat::S32> { - typedef int32_t value_type; - typedef value_type *pointer_type; - typedef const value_type *const_pointer_type; +struct Convert32To16 { + typedef SampleTraits<SampleFormat::S32> SrcTraits; + typedef SampleTraits<SampleFormat::S16> DstTraits; - static constexpr size_t SAMPLE_SIZE = sizeof(value_type); - static constexpr unsigned BITS = sizeof(value_type) * 8; -}; + PcmDither &dither; -template<> -struct SampleTraits<SampleFormat::S24_P32> { - typedef int32_t value_type; - typedef value_type *pointer_type; - typedef const value_type *const_pointer_type; + Convert32To16(PcmDither &_dither):dither(_dither) {} - static constexpr size_t SAMPLE_SIZE = sizeof(value_type); - static constexpr unsigned BITS = 24; + void Convert(int16_t *out, const int32_t *in, size_t n) { + dither.Dither32To16(out, in, in + n); + } }; -static void -pcm_convert_8_to_16(int16_t *out, const int8_t *in, const int8_t *in_end) -{ - while (in < in_end) { - *out++ = *in++ << 8; - } -} +template<SampleFormat F, class Traits=SampleTraits<F>> +struct PortableFloatToInteger + : PerSampleConvert<FloatToIntegerSampleConvert<F, Traits>> {}; -static void -pcm_convert_24_to_16(PcmDither &dither, - int16_t *out, const int32_t *in, const int32_t *in_end) -{ - dither.Dither24To16(out, in, in_end); -} +template<SampleFormat F, class Traits=SampleTraits<F>> +struct FloatToInteger : PortableFloatToInteger<F, Traits> {}; -static void -pcm_convert_32_to_16(PcmDither &dither, - int16_t *out, const int32_t *in, const int32_t *in_end) -{ - dither.Dither32To16(out, in, in_end); -} +/** + * A template class that attempts to use the "optimized" algorithm for + * large portions of the buffer, and calls the "portable" algorithm" + * for the rest when the last block is not full. + */ +template<typename Optimized, typename Portable> +class GlueOptimizedConvert : Optimized, Portable { +public: + typedef typename Portable::SrcTraits SrcTraits; + typedef typename Portable::DstTraits DstTraits; + + void Convert(typename DstTraits::pointer_type out, + typename SrcTraits::const_pointer_type in, + size_t n) const { + Optimized::Convert(out, in, n); + + /* use the "portable" algorithm for the trailing + samples */ + size_t remaining = n % Optimized::BLOCK_SIZE; + size_t done = n - remaining; + Portable::Convert(out + done, in + done, remaining); + } +}; -template<SampleFormat F, class Traits=SampleTraits<F>> -static void -ConvertFromFloat(typename Traits::pointer_type dest, - const float *src, const float *end) -{ - constexpr auto bits = Traits::BITS; +#ifdef __ARM_NEON__ +#include "Neon.hxx" - const float factor = 1 << (bits - 1); +template<> +struct FloatToInteger<SampleFormat::S16, SampleTraits<SampleFormat::S16>> + : GlueOptimizedConvert<NeonFloatTo16, + PortableFloatToInteger<SampleFormat::S16>> {}; - while (src != end) { - int sample(*src++ * factor); - *dest++ = PcmClamp<typename Traits::value_type, int, bits>(sample); - } -} +#endif -template<SampleFormat F, class Traits=SampleTraits<F>> -static void -ConvertFromFloat(typename Traits::pointer_type dest, - const float *src, size_t size) +template<class C> +static ConstBuffer<typename C::DstTraits::value_type> +AllocateConvert(PcmBuffer &buffer, C convert, + ConstBuffer<typename C::SrcTraits::value_type> src) { - ConvertFromFloat<F, Traits>(dest, src, - pcm_end_pointer(src, size)); + auto dest = buffer.GetT<typename C::DstTraits::value_type>(src.size); + convert.Convert(dest, src.data, src.size); + return { dest, src.size }; } template<SampleFormat F, class Traits=SampleTraits<F>> -static typename Traits::pointer_type -AllocateFromFloat(PcmBuffer &buffer, const float *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<typename Traits::value_type> +AllocateFromFloat(PcmBuffer &buffer, ConstBuffer<float> src) { - constexpr size_t src_sample_size = sizeof(*src); - assert(src_size % src_sample_size == 0); - - const size_t num_samples = src_size / src_sample_size; - *dest_size_r = num_samples * sizeof(typename Traits::value_type); - auto dest = (typename Traits::pointer_type)buffer.Get(*dest_size_r); - ConvertFromFloat<F, Traits>(dest, src, src_size); - return dest; + return AllocateConvert(buffer, FloatToInteger<F, Traits>(), src); } -static int16_t * -pcm_allocate_8_to_16(PcmBuffer &buffer, - const int8_t *src, size_t src_size, size_t *dest_size_r) +static ConstBuffer<int16_t> +pcm_allocate_8_to_16(PcmBuffer &buffer, ConstBuffer<int8_t> src) { - int16_t *dest; - *dest_size_r = src_size / sizeof(*src) * sizeof(*dest); - dest = (int16_t *)buffer.Get(*dest_size_r); - pcm_convert_8_to_16(dest, src, pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert8To16(), src); } -static int16_t * +static ConstBuffer<int16_t> pcm_allocate_24p32_to_16(PcmBuffer &buffer, PcmDither &dither, - const int32_t *src, size_t src_size, - size_t *dest_size_r) + ConstBuffer<int32_t> src) { - int16_t *dest; - *dest_size_r = src_size / 2; - assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest)); - dest = (int16_t *)buffer.Get(*dest_size_r); - pcm_convert_24_to_16(dither, dest, src, - pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert24To16(dither), src); } -static int16_t * +static ConstBuffer<int16_t> pcm_allocate_32_to_16(PcmBuffer &buffer, PcmDither &dither, - const int32_t *src, size_t src_size, - size_t *dest_size_r) + ConstBuffer<int32_t> src) { - int16_t *dest; - *dest_size_r = src_size / 2; - assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest)); - dest = (int16_t *)buffer.Get(*dest_size_r); - pcm_convert_32_to_16(dither, dest, src, - pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert32To16(dither), src); } -static int16_t * -pcm_allocate_float_to_16(PcmBuffer &buffer, - const float *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<int16_t> +pcm_allocate_float_to_16(PcmBuffer &buffer, ConstBuffer<float> src) { - return AllocateFromFloat<SampleFormat::S16>(buffer, src, src_size, - dest_size_r); + return AllocateFromFloat<SampleFormat::S16>(buffer, src); } -const int16_t * +ConstBuffer<int16_t> pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither, - SampleFormat src_format, const void *src, - size_t src_size, size_t *dest_size_r) + SampleFormat src_format, ConstBuffer<void> src) { - assert(src_size % sample_format_size(src_format) == 0); - switch (src_format) { case SampleFormat::UNDEFINED: case SampleFormat::DSD: @@ -191,104 +170,67 @@ pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither, case SampleFormat::S8: return pcm_allocate_8_to_16(buffer, - (const int8_t *)src, src_size, - dest_size_r); + ConstBuffer<int8_t>::FromVoid(src)); case SampleFormat::S16: - *dest_size_r = src_size; - return (const int16_t *)src; + return ConstBuffer<int16_t>::FromVoid(src); case SampleFormat::S24_P32: return pcm_allocate_24p32_to_16(buffer, dither, - (const int32_t *)src, src_size, - dest_size_r); + ConstBuffer<int32_t>::FromVoid(src)); case SampleFormat::S32: return pcm_allocate_32_to_16(buffer, dither, - (const int32_t *)src, src_size, - dest_size_r); + ConstBuffer<int32_t>::FromVoid(src)); case SampleFormat::FLOAT: return pcm_allocate_float_to_16(buffer, - (const float *)src, src_size, - dest_size_r); + ConstBuffer<float>::FromVoid(src)); } return nullptr; } -static void -pcm_convert_8_to_24(int32_t *out, const int8_t *in, const int8_t *in_end) -{ - while (in < in_end) - *out++ = *in++ << 16; -} +struct Convert8To24 + : PerSampleConvert<LeftShiftSampleConvert<SampleFormat::S8, + SampleFormat::S24_P32>> {}; -static void -pcm_convert_16_to_24(int32_t *out, const int16_t *in, const int16_t *in_end) -{ - while (in < in_end) - *out++ = *in++ << 8; -} +struct Convert16To24 + : PerSampleConvert<LeftShiftSampleConvert<SampleFormat::S16, + SampleFormat::S24_P32>> {}; -static void -pcm_convert_32_to_24(int32_t *gcc_restrict out, - const int32_t *gcc_restrict in, - const int32_t *gcc_restrict in_end) +static ConstBuffer<int32_t> +pcm_allocate_8_to_24(PcmBuffer &buffer, ConstBuffer<int8_t> src) { - while (in < in_end) - *out++ = *in++ >> 8; + return AllocateConvert(buffer, Convert8To24(), src); } -static int32_t * -pcm_allocate_8_to_24(PcmBuffer &buffer, - const int8_t *src, size_t src_size, size_t *dest_size_r) +static ConstBuffer<int32_t> +pcm_allocate_16_to_24(PcmBuffer &buffer, ConstBuffer<int16_t> src) { - int32_t *dest; - *dest_size_r = src_size / sizeof(*src) * sizeof(*dest); - dest = (int32_t *)buffer.Get(*dest_size_r); - pcm_convert_8_to_24(dest, src, pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert16To24(), src); } -static int32_t * -pcm_allocate_16_to_24(PcmBuffer &buffer, - const int16_t *src, size_t src_size, size_t *dest_size_r) -{ - int32_t *dest; - *dest_size_r = src_size * 2; - assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest)); - dest = (int32_t *)buffer.Get(*dest_size_r); - pcm_convert_16_to_24(dest, src, pcm_end_pointer(src, src_size)); - return dest; -} +struct Convert32To24 + : PerSampleConvert<RightShiftSampleConvert<SampleFormat::S32, + SampleFormat::S24_P32>> {}; -static int32_t * -pcm_allocate_32_to_24(PcmBuffer &buffer, - const int32_t *src, size_t src_size, size_t *dest_size_r) +static ConstBuffer<int32_t> +pcm_allocate_32_to_24(PcmBuffer &buffer, ConstBuffer<int32_t> src) { - *dest_size_r = src_size; - int32_t *dest = (int32_t *)buffer.Get(*dest_size_r); - pcm_convert_32_to_24(dest, src, pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert32To24(), src); } -static int32_t * -pcm_allocate_float_to_24(PcmBuffer &buffer, - const float *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<int32_t> +pcm_allocate_float_to_24(PcmBuffer &buffer, ConstBuffer<float> src) { - return AllocateFromFloat<SampleFormat::S24_P32>(buffer, src, src_size, - dest_size_r); + return AllocateFromFloat<SampleFormat::S24_P32>(buffer, src); } -const int32_t * +ConstBuffer<int32_t> pcm_convert_to_24(PcmBuffer &buffer, - SampleFormat src_format, const void *src, - size_t src_size, size_t *dest_size_r) + SampleFormat src_format, ConstBuffer<void> src) { - assert(src_size % sample_format_size(src_format) == 0); - switch (src_format) { case SampleFormat::UNDEFINED: case SampleFormat::DSD: @@ -296,110 +238,67 @@ pcm_convert_to_24(PcmBuffer &buffer, case SampleFormat::S8: return pcm_allocate_8_to_24(buffer, - (const int8_t *)src, src_size, - dest_size_r); + ConstBuffer<int8_t>::FromVoid(src)); case SampleFormat::S16: return pcm_allocate_16_to_24(buffer, - (const int16_t *)src, src_size, - dest_size_r); + ConstBuffer<int16_t>::FromVoid(src)); case SampleFormat::S24_P32: - *dest_size_r = src_size; - return (const int32_t *)src; + return ConstBuffer<int32_t>::FromVoid(src); case SampleFormat::S32: return pcm_allocate_32_to_24(buffer, - (const int32_t *)src, src_size, - dest_size_r); + ConstBuffer<int32_t>::FromVoid(src)); case SampleFormat::FLOAT: return pcm_allocate_float_to_24(buffer, - (const float *)src, src_size, - dest_size_r); + ConstBuffer<float>::FromVoid(src)); } return nullptr; } -static void -pcm_convert_8_to_32(int32_t *out, const int8_t *in, const int8_t *in_end) -{ - while (in < in_end) - *out++ = *in++ << 24; -} +struct Convert8To32 + : PerSampleConvert<LeftShiftSampleConvert<SampleFormat::S8, + SampleFormat::S32>> {}; -static void -pcm_convert_16_to_32(int32_t *out, const int16_t *in, const int16_t *in_end) -{ - while (in < in_end) - *out++ = *in++ << 16; -} +struct Convert16To32 + : PerSampleConvert<LeftShiftSampleConvert<SampleFormat::S16, + SampleFormat::S32>> {}; -static void -pcm_convert_24_to_32(int32_t *gcc_restrict out, - const int32_t *gcc_restrict in, - const int32_t *gcc_restrict in_end) -{ - while (in < in_end) - *out++ = *in++ << 8; -} +struct Convert24To32 + : PerSampleConvert<LeftShiftSampleConvert<SampleFormat::S24_P32, + SampleFormat::S32>> {}; -static int32_t * -pcm_allocate_8_to_32(PcmBuffer &buffer, - const int8_t *src, size_t src_size, size_t *dest_size_r) +static ConstBuffer<int32_t> +pcm_allocate_8_to_32(PcmBuffer &buffer, ConstBuffer<int8_t> src) { - int32_t *dest; - *dest_size_r = src_size / sizeof(*src) * sizeof(*dest); - dest = (int32_t *)buffer.Get(*dest_size_r); - pcm_convert_8_to_32(dest, src, pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert8To32(), src); } -static int32_t * -pcm_allocate_16_to_32(PcmBuffer &buffer, - const int16_t *src, size_t src_size, size_t *dest_size_r) +static ConstBuffer<int32_t> +pcm_allocate_16_to_32(PcmBuffer &buffer, ConstBuffer<int16_t> src) { - int32_t *dest; - *dest_size_r = src_size * 2; - assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest)); - dest = (int32_t *)buffer.Get(*dest_size_r); - pcm_convert_16_to_32(dest, src, pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert16To32(), src); } -static int32_t * -pcm_allocate_24p32_to_32(PcmBuffer &buffer, - const int32_t *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<int32_t> +pcm_allocate_24p32_to_32(PcmBuffer &buffer, ConstBuffer<int32_t> src) { - *dest_size_r = src_size; - int32_t *dest = (int32_t *)buffer.Get(*dest_size_r); - pcm_convert_24_to_32(dest, src, pcm_end_pointer(src, src_size)); - return dest; + return AllocateConvert(buffer, Convert24To32(), src); } -static int32_t * -pcm_allocate_float_to_32(PcmBuffer &buffer, - const float *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<int32_t> +pcm_allocate_float_to_32(PcmBuffer &buffer, ConstBuffer<float> src) { - /* convert to S24_P32 first */ - int32_t *dest = pcm_allocate_float_to_24(buffer, src, src_size, - dest_size_r); - - /* convert to 32 bit in-place */ - pcm_convert_24_to_32(dest, dest, pcm_end_pointer(dest, *dest_size_r)); - return dest; + return AllocateFromFloat<SampleFormat::S32>(buffer, src); } -const int32_t * +ConstBuffer<int32_t> pcm_convert_to_32(PcmBuffer &buffer, - SampleFormat src_format, const void *src, - size_t src_size, size_t *dest_size_r) + SampleFormat src_format, ConstBuffer<void> src) { - assert(src_size % sample_format_size(src_format) == 0); - switch (src_format) { case SampleFormat::UNDEFINED: case SampleFormat::DSD: @@ -407,108 +306,66 @@ pcm_convert_to_32(PcmBuffer &buffer, case SampleFormat::S8: return pcm_allocate_8_to_32(buffer, - (const int8_t *)src, src_size, - dest_size_r); + ConstBuffer<int8_t>::FromVoid(src)); case SampleFormat::S16: return pcm_allocate_16_to_32(buffer, - (const int16_t *)src, src_size, - dest_size_r); + ConstBuffer<int16_t>::FromVoid(src)); case SampleFormat::S24_P32: return pcm_allocate_24p32_to_32(buffer, - (const int32_t *)src, src_size, - dest_size_r); + ConstBuffer<int32_t>::FromVoid(src)); case SampleFormat::S32: - *dest_size_r = src_size; - return (const int32_t *)src; + return ConstBuffer<int32_t>::FromVoid(src); case SampleFormat::FLOAT: return pcm_allocate_float_to_32(buffer, - (const float *)src, src_size, - dest_size_r); + ConstBuffer<float>::FromVoid(src)); } return nullptr; } -template<SampleFormat F, class Traits=SampleTraits<F>> -static void -ConvertToFloat(float *dest, - typename Traits::const_pointer_type src, - typename Traits::const_pointer_type end) -{ - constexpr float factor = 0.5 / (1 << (Traits::BITS - 2)); - while (src != end) - *dest++ = float(*src++) * factor; +struct Convert8ToFloat + : PerSampleConvert<IntegerToFloatSampleConvert<SampleFormat::S8>> {}; -} +struct Convert16ToFloat + : PerSampleConvert<IntegerToFloatSampleConvert<SampleFormat::S16>> {}; -template<SampleFormat F, class Traits=SampleTraits<F>> -static void -ConvertToFloat(float *dest, - typename Traits::const_pointer_type src, size_t size) -{ - ConvertToFloat<F, Traits>(dest, src, pcm_end_pointer(src, size)); -} +struct Convert24ToFloat + : PerSampleConvert<IntegerToFloatSampleConvert<SampleFormat::S24_P32>> {}; -template<SampleFormat F, class Traits=SampleTraits<F>> -static float * -AllocateToFloat(PcmBuffer &buffer, - typename Traits::const_pointer_type src, size_t src_size, - size_t *dest_size_r) -{ - constexpr size_t src_sample_size = Traits::SAMPLE_SIZE; - assert(src_size % src_sample_size == 0); - - const size_t num_samples = src_size / src_sample_size; - *dest_size_r = num_samples * sizeof(float); - float *dest = (float *)buffer.Get(*dest_size_r); - ConvertToFloat<F, Traits>(dest, src, src_size); - return dest; -} +struct Convert32ToFloat + : PerSampleConvert<IntegerToFloatSampleConvert<SampleFormat::S32>> {}; -static float * -pcm_allocate_8_to_float(PcmBuffer &buffer, - const int8_t *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<float> +pcm_allocate_8_to_float(PcmBuffer &buffer, ConstBuffer<int8_t> src) { - return AllocateToFloat<SampleFormat::S8>(buffer, src, src_size, - dest_size_r); + return AllocateConvert(buffer, Convert8ToFloat(), src); } -static float * -pcm_allocate_16_to_float(PcmBuffer &buffer, - const int16_t *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<float> +pcm_allocate_16_to_float(PcmBuffer &buffer, ConstBuffer<int16_t> src) { - return AllocateToFloat<SampleFormat::S16>(buffer, src, src_size, - dest_size_r); + return AllocateConvert(buffer, Convert16ToFloat(), src); } -static float * -pcm_allocate_24p32_to_float(PcmBuffer &buffer, - const int32_t *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<float> +pcm_allocate_24p32_to_float(PcmBuffer &buffer, ConstBuffer<int32_t> src) { - return AllocateToFloat<SampleFormat::S24_P32>(buffer, src, src_size, - dest_size_r); + return AllocateConvert(buffer, Convert24ToFloat(), src); } -static float * -pcm_allocate_32_to_float(PcmBuffer &buffer, - const int32_t *src, size_t src_size, - size_t *dest_size_r) +static ConstBuffer<float> +pcm_allocate_32_to_float(PcmBuffer &buffer, ConstBuffer<int32_t> src) { - return AllocateToFloat<SampleFormat::S32>(buffer, src, src_size, - dest_size_r); + return AllocateConvert(buffer, Convert32ToFloat(), src); } -const float * +ConstBuffer<float> pcm_convert_to_float(PcmBuffer &buffer, - SampleFormat src_format, const void *src, - size_t src_size, size_t *dest_size_r) + SampleFormat src_format, ConstBuffer<void> src) { switch (src_format) { case SampleFormat::UNDEFINED: @@ -517,27 +374,22 @@ pcm_convert_to_float(PcmBuffer &buffer, case SampleFormat::S8: return pcm_allocate_8_to_float(buffer, - (const int8_t *)src, src_size, - dest_size_r); + ConstBuffer<int8_t>::FromVoid(src)); case SampleFormat::S16: return pcm_allocate_16_to_float(buffer, - (const int16_t *)src, src_size, - dest_size_r); - - case SampleFormat::S24_P32: - return pcm_allocate_24p32_to_float(buffer, - (const int32_t *)src, src_size, - dest_size_r); + ConstBuffer<int16_t>::FromVoid(src)); case SampleFormat::S32: return pcm_allocate_32_to_float(buffer, - (const int32_t *)src, src_size, - dest_size_r); + ConstBuffer<int32_t>::FromVoid(src)); + + case SampleFormat::S24_P32: + return pcm_allocate_24p32_to_float(buffer, + ConstBuffer<int32_t>::FromVoid(src)); case SampleFormat::FLOAT: - *dest_size_r = src_size; - return (const float *)src; + return ConstBuffer<float>::FromVoid(src); } return nullptr; |