diff options
Diffstat (limited to '')
| -rw-r--r-- | src/pcm/FormatConverter.cxx | 53 | ||||
| -rw-r--r-- | src/pcm/PcmFormat.cxx | 335 | ||||
| -rw-r--r-- | src/pcm/PcmFormat.hxx | 31 |
3 files changed, 160 insertions, 259 deletions
diff --git a/src/pcm/FormatConverter.cxx b/src/pcm/FormatConverter.cxx index 8886a8ab0..8ff8b8940 100644 --- a/src/pcm/FormatConverter.cxx +++ b/src/pcm/FormatConverter.cxx @@ -50,9 +50,6 @@ PcmFormatConverter::Close() ConstBuffer<void> PcmFormatConverter::Convert(ConstBuffer<void> src, Error &error) { - const void *result = nullptr; - size_t result_size = 0; - switch (dest_format) { case SampleFormat::UNDEFINED: assert(false); @@ -60,45 +57,33 @@ PcmFormatConverter::Convert(ConstBuffer<void> src, Error &error) case SampleFormat::S8: case SampleFormat::DSD: - result = nullptr; - break; + error.Format(pcm_domain, + "PCM conversion from %s to %s is not implemented", + sample_format_to_string(src_format), + sample_format_to_string(dest_format)); + return nullptr; case SampleFormat::S16: - result = pcm_convert_to_16(buffer, dither, - src_format, - src.data, src.size, - &result_size); - break; + return pcm_convert_to_16(buffer, dither, + src_format, + src).ToVoid(); case SampleFormat::S24_P32: - result = pcm_convert_to_24(buffer, - src_format, - src.data, src.size, - &result_size); - break; + return pcm_convert_to_24(buffer, + src_format, + src).ToVoid(); case SampleFormat::S32: - result = pcm_convert_to_32(buffer, - src_format, - src.data, src.size, - &result_size); - break; + return pcm_convert_to_32(buffer, + src_format, + src).ToVoid(); case SampleFormat::FLOAT: - result = pcm_convert_to_float(buffer, - src_format, - src.data, src.size, - &result_size); - break; - } - - if (result == nullptr) { - error.Format(pcm_domain, - "PCM conversion from %s to %s is not implemented", - sample_format_to_string(src_format), - sample_format_to_string(dest_format)); - return nullptr; + return pcm_convert_to_float(buffer, + src_format, + src).ToVoid(); } - return { result, result_size }; + assert(false); + gcc_unreachable(); } diff --git a/src/pcm/PcmFormat.cxx b/src/pcm/PcmFormat.cxx index f7e6473b3..ff8f2a80c 100644 --- a/src/pcm/PcmFormat.cxx +++ b/src/pcm/PcmFormat.cxx @@ -22,9 +22,18 @@ #include "PcmBuffer.hxx" #include "PcmUtils.hxx" #include "Traits.hxx" +#include "util/ConstBuffer.hxx" +#include "util/WritableBuffer.hxx" #include "PcmDither.cxx" // including the .cxx file to get inlined templates +template<typename T> +static inline ConstBuffer<T> +ToConst(WritableBuffer<T> b) +{ + return { b.data, b.size }; +} + static void pcm_convert_8_to_16(int16_t *out, const int8_t *in, size_t n) { @@ -76,61 +85,51 @@ AllocateFromFloat(PcmBuffer &buffer, const float *src, size_t src_size, return dest; } -static int16_t * -pcm_allocate_8_to_16(PcmBuffer &buffer, - const int8_t *src, size_t src_size, size_t *dest_size_r) +template<SampleFormat F, class Traits=SampleTraits<F>> +static WritableBuffer<typename Traits::value_type> +AllocateFromFloat(PcmBuffer &buffer, ConstBuffer<float> 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, src_size / sizeof(*src)); - return dest; + auto dest = buffer.GetT<typename Traits::value_type>(src.size); + ConvertFromFloat<F, Traits>(dest, src.data, src.size); + return { dest, src.size }; } -static int16_t * +static ConstBuffer<int16_t> +pcm_allocate_8_to_16(PcmBuffer &buffer, ConstBuffer<int8_t> src) +{ + auto dest = buffer.GetT<int16_t>(src.size); + pcm_convert_8_to_16(dest, src.data, src.size); + return { dest, src.size }; +} + +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) -{ - 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; + ConstBuffer<int32_t> src) +{ + auto dest = buffer.GetT<int16_t>(src.size); + pcm_convert_24_to_16(dither, dest, src.data, src.end()); + return { dest, src.size }; } -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) -{ - 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; + ConstBuffer<int32_t> src) +{ + auto dest = buffer.GetT<int16_t>(src.size); + pcm_convert_32_to_16(dither, dest, src.data, src.end()); + return { dest, src.size }; } -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 ToConst(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: @@ -138,27 +137,22 @@ 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; @@ -187,55 +181,40 @@ pcm_convert_32_to_24(int32_t *gcc_restrict out, out[i] = in[i] >> 8; } -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_8_to_24(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_24(dest, src, src_size / sizeof(*src)); - return dest; + auto dest = buffer.GetT<int32_t>(src.size); + pcm_convert_8_to_24(dest, src.data, src.size); + return { dest, src.size }; } -static int32_t * -pcm_allocate_16_to_24(PcmBuffer &buffer, - const int16_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 * 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, src_size / sizeof(*src)); - return dest; + auto dest = buffer.GetT<int32_t>(src.size); + pcm_convert_16_to_24(dest, src.data, src.size); + return { dest, src.size }; } -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, src_size / sizeof(*src)); - return dest; + auto dest = buffer.GetT<int32_t>(src.size); + pcm_convert_32_to_24(dest, src.data, src.size); + return { dest, src.size }; } -static int32_t * -pcm_allocate_float_to_24(PcmBuffer &buffer, - const float *src, size_t src_size, - size_t *dest_size_r) +static WritableBuffer<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: @@ -243,27 +222,22 @@ 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); + return ToConst(pcm_allocate_float_to_24(buffer, + ConstBuffer<float>::FromVoid(src))); } return nullptr; @@ -292,61 +266,45 @@ pcm_convert_24_to_32(int32_t *gcc_restrict out, out[i] = in[i] << 8; } -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, src_size / sizeof(*src)); - return dest; + auto dest = buffer.GetT<int32_t>(src.size); + pcm_convert_8_to_32(dest, src.data, src.size); + return { dest, src.size }; } -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, src_size / sizeof(*src)); - return dest; + auto dest = buffer.GetT<int32_t>(src.size); + pcm_convert_16_to_32(dest, src.data, src.size); + return { dest, src.size }; } -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, src_size / sizeof(*src)); - return dest; + auto dest = buffer.GetT<int32_t>(src.size); + pcm_convert_24_to_32(dest, src.data, src.size); + return { dest, src.size }; } -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); + auto dest = pcm_allocate_float_to_24(buffer, src); /* convert to 32 bit in-place */ - pcm_convert_24_to_32(dest, dest, src_size / sizeof(*src)); - return dest; + pcm_convert_24_to_32(dest.data, dest.data, src.size); + return ToConst(dest); } -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: @@ -354,27 +312,22 @@ 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; @@ -384,77 +337,50 @@ template<SampleFormat F, class Traits=SampleTraits<F>> static void ConvertToFloat(float *dest, typename Traits::const_pointer_type src, - typename Traits::const_pointer_type end) + size_t n) { constexpr float factor = 0.5 / (1 << (Traits::BITS - 2)); - while (src != end) - *dest++ = float(*src++) * factor; -} - -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)); + for (size_t i = 0; i != n; ++i) + dest[i] = float(src[i]) * factor; } template<SampleFormat F, class Traits=SampleTraits<F>> -static float * +static ConstBuffer<float> AllocateToFloat(PcmBuffer &buffer, - typename Traits::const_pointer_type src, size_t src_size, - size_t *dest_size_r) + ConstBuffer<typename Traits::value_type> src) { - 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; + float *dest = buffer.GetT<float>(src.size); + ConvertToFloat<F, Traits>(dest, src.data, src.size); + return { dest, src.size }; } -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 AllocateToFloat<SampleFormat::S8>(buffer, 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 AllocateToFloat<SampleFormat::S16>(buffer, 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 AllocateToFloat<SampleFormat::S24_P32>(buffer, 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 AllocateToFloat<SampleFormat::S32>(buffer, 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: @@ -463,27 +389,22 @@ 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; diff --git a/src/pcm/PcmFormat.hxx b/src/pcm/PcmFormat.hxx index cc44d6dd5..378ac8e2a 100644 --- a/src/pcm/PcmFormat.hxx +++ b/src/pcm/PcmFormat.hxx @@ -25,6 +25,7 @@ #include <stdint.h> #include <stddef.h> +template<typename T> struct ConstBuffer; class PcmBuffer; class PcmDither; @@ -36,14 +37,12 @@ class PcmDither; * @param dither a pcm_dither object for 24-to-16 conversion * @param bits the number of in the source buffer * @param src the source PCM buffer - * @param src_size the size of #src in bytes - * @param dest_size_r returns the number of bytes of the destination buffer * @return the destination buffer */ -const int16_t * +gcc_pure +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); /** * Converts PCM samples to 24 bit (32 bit alignment). @@ -51,14 +50,12 @@ pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither, * @param buffer a PcmBuffer object * @param bits the number of in the source buffer * @param src the source PCM buffer - * @param src_size the size of #src in bytes - * @param dest_size_r returns the number of bytes of the destination buffer * @return the destination buffer */ -const int32_t * +gcc_pure +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); /** * Converts PCM samples to 32 bit. @@ -66,14 +63,12 @@ pcm_convert_to_24(PcmBuffer &buffer, * @param buffer a PcmBuffer object * @param bits the number of in the source buffer * @param src the source PCM buffer - * @param src_size the size of #src in bytes - * @param dest_size_r returns the number of bytes of the destination buffer * @return the destination buffer */ -const int32_t * +gcc_pure +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); /** * Converts PCM samples to 32 bit floating point. @@ -85,9 +80,9 @@ pcm_convert_to_32(PcmBuffer &buffer, * @param dest_size_r returns the number of bytes of the destination buffer * @return the destination buffer */ -const float * +gcc_pure +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); #endif |