mirror of
https://github.com/skyline-emu/skyline.git
synced 2024-12-28 08:05:29 +03:00
audio: Add support for resampling tracks
Uses the resampling algorithm derived from HOS by the Ryujinx team to resample the stream on the fly to 48KHz. It is currently used only in audout.
This commit is contained in:
Billy Laws
◱ PixelyIon
parent
93206d5a3c
commit
ddd1fc61ef
@ -25,6 +25,7 @@ add_library(skyline SHARED
|
||||
${source_DIR}/main.cpp
|
||||
${source_DIR}/skyline/audio.cpp
|
||||
${source_DIR}/skyline/audio/track.cpp
|
||||
${source_DIR}/skyline/audio/resampler.cpp
|
||||
${source_DIR}/skyline/common.cpp
|
||||
${source_DIR}/skyline/nce/guest.S
|
||||
${source_DIR}/skyline/nce/guest.cpp
|
||||
|
||||
150
app/src/main/cpp/skyline/audio/resampler.cpp
Normal file
150
app/src/main/cpp/skyline/audio/resampler.cpp
Normal file
@ -0,0 +1,150 @@
|
||||
#include <array>
|
||||
#include <common.h>
|
||||
#include "resampler.h"
|
||||
|
||||
namespace skyline::audio {
|
||||
struct LutEntry {
|
||||
i32 a;
|
||||
i32 b;
|
||||
i32 c;
|
||||
i32 d;
|
||||
};
|
||||
|
||||
constexpr std::array<LutEntry, 128> curveLut0 = {{
|
||||
{6600, 19426, 6722, 3}, {6479, 19424, 6845, 9}, {6359, 19419, 6968, 15}, {6239, 19412, 7093, 22},
|
||||
{6121, 19403, 7219, 28}, {6004, 19391, 7345, 34}, {5888, 19377, 7472, 41}, {5773, 19361, 7600, 48},
|
||||
{5659, 19342, 7728, 55}, {5546, 19321, 7857, 62}, {5434, 19298, 7987, 69}, {5323, 19273, 8118, 77},
|
||||
{5213, 19245, 8249, 84}, {5104, 19215, 8381, 92}, {4997, 19183, 8513, 101}, {4890, 19148, 8646, 109},
|
||||
{4785, 19112, 8780, 118}, {4681, 19073, 8914, 127}, {4579, 19031, 9048, 137}, {4477, 18988, 9183, 147},
|
||||
{4377, 18942, 9318, 157}, {4277, 18895, 9454, 168}, {4179, 18845, 9590, 179}, {4083, 18793, 9726, 190},
|
||||
{3987, 18738, 9863, 202}, {3893, 18682, 10000, 215}, {3800, 18624, 10137, 228}, {3709, 18563, 10274, 241},
|
||||
{3618, 18500, 10411, 255}, {3529, 18436, 10549, 270}, {3441, 18369, 10687, 285}, {3355, 18300, 10824, 300},
|
||||
{3269, 18230, 10962, 317}, {3186, 18157, 11100, 334}, {3103, 18082, 11238, 351}, {3022, 18006, 11375, 369},
|
||||
{2942, 17927, 11513, 388}, {2863, 17847, 11650, 408}, {2785, 17765, 11788, 428}, {2709, 17681, 11925, 449},
|
||||
{2635, 17595, 12062, 471}, {2561, 17507, 12198, 494}, {2489, 17418, 12334, 517}, {2418, 17327, 12470, 541},
|
||||
{2348, 17234, 12606, 566}, {2280, 17140, 12741, 592}, {2213, 17044, 12876, 619}, {2147, 16946, 13010, 647},
|
||||
{2083, 16846, 13144, 675}, {2020, 16745, 13277, 704}, {1958, 16643, 13409, 735}, {1897, 16539, 13541, 766},
|
||||
{1838, 16434, 13673, 798}, {1780, 16327, 13803, 832}, {1723, 16218, 13933, 866}, {1667, 16109, 14062, 901},
|
||||
{1613, 15998, 14191, 937}, {1560, 15885, 14318, 975}, {1508, 15772, 14445, 1013}, {1457, 15657, 14571, 1052},
|
||||
{1407, 15540, 14695, 1093}, {1359, 15423, 14819, 1134}, {1312, 15304, 14942, 1177}, {1266, 15185, 15064, 1221},
|
||||
{1221, 15064, 15185, 1266}, {1177, 14942, 15304, 1312}, {1134, 14819, 15423, 1359}, {1093, 14695, 15540, 1407},
|
||||
{1052, 14571, 15657, 1457}, {1013, 14445, 15772, 1508}, {975, 14318, 15885, 1560}, {937, 14191, 15998, 1613},
|
||||
{901, 14062, 16109, 1667}, {866, 13933, 16218, 1723}, {832, 13803, 16327, 1780}, {798, 13673, 16434, 1838},
|
||||
{766, 13541, 16539, 1897}, {735, 13409, 16643, 1958}, {704, 13277, 16745, 2020}, {675, 13144, 16846, 2083},
|
||||
{647, 13010, 16946, 2147}, {619, 12876, 17044, 2213}, {592, 12741, 17140, 2280}, {566, 12606, 17234, 2348},
|
||||
{541, 12470, 17327, 2418}, {517, 12334, 17418, 2489}, {494, 12198, 17507, 2561}, {471, 12062, 17595, 2635},
|
||||
{449, 11925, 17681, 2709}, {428, 11788, 17765, 2785}, {408, 11650, 17847, 2863}, {388, 11513, 17927, 2942},
|
||||
{369, 11375, 18006, 3022}, {351, 11238, 18082, 3103}, {334, 11100, 18157, 3186}, {317, 10962, 18230, 3269},
|
||||
{300, 10824, 18300, 3355}, {285, 10687, 18369, 3441}, {270, 10549, 18436, 3529}, {255, 10411, 18500, 3618},
|
||||
{241, 10274, 18563, 3709}, {228, 10137, 18624, 3800}, {215, 10000, 18682, 3893}, {202, 9863, 18738, 3987},
|
||||
{190, 9726, 18793, 4083}, {179, 9590, 18845, 4179}, {168, 9454, 18895, 4277}, {157, 9318, 18942, 4377},
|
||||
{147, 9183, 18988, 4477}, {137, 9048, 19031, 4579}, {127, 8914, 19073, 4681}, {118, 8780, 19112, 4785},
|
||||
{109, 8646, 19148, 4890}, {101, 8513, 19183, 4997}, {92, 8381, 19215, 5104}, {84, 8249, 19245, 5213},
|
||||
{77, 8118, 19273, 5323}, {69, 7987, 19298, 5434}, {62, 7857, 19321, 5546}, {55, 7728, 19342, 5659},
|
||||
{48, 7600, 19361, 5773}, {41, 7472, 19377, 5888}, {34, 7345, 19391, 6004}, {28, 7219, 19403, 6121},
|
||||
{22, 7093, 19412, 6239}, {15, 6968, 19419, 6359}, {9, 6845, 19424, 6479}, {3, 6722, 19426, 6600}}};
|
||||
|
||||
constexpr std::array<LutEntry, 128> curveLut1 = {{
|
||||
{-68, 32639, 69, -5}, {-200, 32630, 212, -15}, {-328, 32613, 359, -26}, {-450, 32586, 512, -36},
|
||||
{-568, 32551, 669, -47}, {-680, 32507, 832, -58}, {-788, 32454, 1000, -69}, {-891, 32393, 1174, -80},
|
||||
{-990, 32323, 1352, -92}, {-1084, 32244, 1536, -103}, {-1173, 32157, 1724, -115}, {-1258, 32061, 1919, -128},
|
||||
{-1338, 31956, 2118, -140}, {-1414, 31844, 2322, -153}, {-1486, 31723, 2532, -167}, {-1554, 31593, 2747, -180},
|
||||
{-1617, 31456, 2967, -194}, {-1676, 31310, 3192, -209}, {-1732, 31157, 3422, -224}, {-1783, 30995, 3657, -240},
|
||||
{-1830, 30826, 3897, -256}, {-1874, 30649, 4143, -272}, {-1914, 30464, 4393, -289}, {-1951, 30272, 4648, -307},
|
||||
{-1984, 30072, 4908, -325}, {-2014, 29866, 5172, -343}, {-2040, 29652, 5442, -362}, {-2063, 29431, 5716, -382},
|
||||
{-2083, 29203, 5994, -403}, {-2100, 28968, 6277, -424}, {-2114, 28727, 6565, -445}, {-2125, 28480, 6857, -468},
|
||||
{-2133, 28226, 7153, -490}, {-2139, 27966, 7453, -514}, {-2142, 27700, 7758, -538}, {-2142, 27428, 8066, -563},
|
||||
{-2141, 27151, 8378, -588}, {-2136, 26867, 8694, -614}, {-2130, 26579, 9013, -641}, {-2121, 26285, 9336, -668},
|
||||
{-2111, 25987, 9663, -696}, {-2098, 25683, 9993, -724}, {-2084, 25375, 10326, -753}, {-2067, 25063, 10662, -783},
|
||||
{-2049, 24746, 11000, -813}, {-2030, 24425, 11342, -844}, {-2009, 24100, 11686, -875}, {-1986, 23771, 12033, -907},
|
||||
{-1962, 23438, 12382, -939}, {-1937, 23103, 12733, -972}, {-1911, 22764, 13086, -1005}, {-1883, 22422, 13441, -1039},
|
||||
{-1855, 22077, 13798, -1072}, {-1825, 21729, 14156, -1107}, {-1795, 21380, 14516, -1141}, {-1764, 21027, 14877, -1176},
|
||||
{-1732, 20673, 15239, -1211}, {-1700, 20317, 15602, -1246}, {-1667, 19959, 15965, -1282}, {-1633, 19600, 16329, -1317},
|
||||
{-1599, 19239, 16694, -1353}, {-1564, 18878, 17058, -1388}, {-1530, 18515, 17423, -1424}, {-1495, 18151, 17787, -1459},
|
||||
{-1459, 17787, 18151, -1495}, {-1424, 17423, 18515, -1530}, {-1388, 17058, 18878, -1564}, {-1353, 16694, 19239, -1599},
|
||||
{-1317, 16329, 19600, -1633}, {-1282, 15965, 19959, -1667}, {-1246, 15602, 20317, -1700}, {-1211, 15239, 20673, -1732},
|
||||
{-1176, 14877, 21027, -1764}, {-1141, 14516, 21380, -1795}, {-1107, 14156, 21729, -1825}, {-1072, 13798, 22077, -1855},
|
||||
{-1039, 13441, 22422, -1883}, {-1005, 13086, 22764, -1911}, {-972, 12733, 23103, -1937}, {-939, 12382, 23438, -1962},
|
||||
{-907, 12033, 23771, -1986}, {-875, 11686, 24100, -2009}, {-844, 11342, 24425, -2030}, {-813, 11000, 24746, -2049},
|
||||
{-783, 10662, 25063, -2067}, {-753, 10326, 25375, -2084}, {-724, 9993, 25683, -2098}, {-696, 9663, 25987, -2111},
|
||||
{-668, 9336, 26285, -2121}, {-641, 9013, 26579, -2130}, {-614, 8694, 26867, -2136}, {-588, 8378, 27151, -2141},
|
||||
{-563, 8066, 27428, -2142}, {-538, 7758, 27700, -2142}, {-514, 7453, 27966, -2139}, {-490, 7153, 28226, -2133},
|
||||
{-468, 6857, 28480, -2125}, {-445, 6565, 28727, -2114}, {-424, 6277, 28968, -2100}, {-403, 5994, 29203, -2083},
|
||||
{-382, 5716, 29431, -2063}, {-362, 5442, 29652, -2040}, {-343, 5172, 29866, -2014}, {-325, 4908, 30072, -1984},
|
||||
{-307, 4648, 30272, -1951}, {-289, 4393, 30464, -1914}, {-272, 4143, 30649, -1874}, {-256, 3897, 30826, -1830},
|
||||
{-240, 3657, 30995, -1783}, {-224, 3422, 31157, -1732}, {-209, 3192, 31310, -1676}, {-194, 2967, 31456, -1617},
|
||||
{-180, 2747, 31593, -1554}, {-167, 2532, 31723, -1486}, {-153, 2322, 31844, -1414}, {-140, 2118, 31956, -1338},
|
||||
{-128, 1919, 32061, -1258}, {-115, 1724, 32157, -1173}, {-103, 1536, 32244, -1084}, {-92, 1352, 32323, -990},
|
||||
{-80, 1174, 32393, -891}, {-69, 1000, 32454, -788}, {-58, 832, 32507, -680}, {-47, 669, 32551, -568},
|
||||
{-36, 512, 32586, -450}, {-26, 359, 32613, -328}, {-15, 212, 32630, -200}, {-5, 69, 32639, -68}}};
|
||||
|
||||
constexpr std::array<LutEntry, 128> curveLut2 = {{
|
||||
{3195, 26287, 3329, -32}, {3064, 26281, 3467, -34}, {2936, 26270, 3608, -38}, {2811, 26253, 3751, -42},
|
||||
{2688, 26230, 3897, -46}, {2568, 26202, 4046, -50}, {2451, 26169, 4199, -54}, {2338, 26130, 4354, -58},
|
||||
{2227, 26085, 4512, -63}, {2120, 26035, 4673, -67}, {2015, 25980, 4837, -72}, {1912, 25919, 5004, -76},
|
||||
{1813, 25852, 5174, -81}, {1716, 25780, 5347, -87}, {1622, 25704, 5522, -92}, {1531, 25621, 5701, -98},
|
||||
{1442, 25533, 5882, -103}, {1357, 25440, 6066, -109}, {1274, 25342, 6253, -115}, {1193, 25239, 6442, -121},
|
||||
{1115, 25131, 6635, -127}, {1040, 25018, 6830, -133}, {967, 24899, 7027, -140}, {897, 24776, 7227, -146},
|
||||
{829, 24648, 7430, -153}, {764, 24516, 7635, -159}, {701, 24379, 7842, -166}, {641, 24237, 8052, -174},
|
||||
{583, 24091, 8264, -181}, {526, 23940, 8478, -187}, {472, 23785, 8695, -194}, {420, 23626, 8914, -202},
|
||||
{371, 23462, 9135, -209}, {324, 23295, 9358, -215}, {279, 23123, 9583, -222}, {236, 22948, 9809, -230},
|
||||
{194, 22769, 10038, -237}, {154, 22586, 10269, -243}, {117, 22399, 10501, -250}, {81, 22208, 10735, -258},
|
||||
{47, 22015, 10970, -265}, {15, 21818, 11206, -271}, {-16, 21618, 11444, -277}, {-44, 21415, 11684, -283},
|
||||
{-71, 21208, 11924, -290}, {-97, 20999, 12166, -296}, {-121, 20786, 12409, -302}, {-143, 20571, 12653, -306},
|
||||
{-163, 20354, 12898, -311}, {-183, 20134, 13143, -316}, {-201, 19911, 13389, -321}, {-218, 19686, 13635, -325},
|
||||
{-234, 19459, 13882, -328}, {-248, 19230, 14130, -332}, {-261, 18998, 14377, -335}, {-273, 18765, 14625, -337},
|
||||
{-284, 18531, 14873, -339}, {-294, 18295, 15121, -341}, {-302, 18057, 15369, -341}, {-310, 17817, 15617, -341},
|
||||
{-317, 17577, 15864, -340}, {-323, 17335, 16111, -340}, {-328, 17092, 16357, -338}, {-332, 16848, 16603, -336},
|
||||
{-336, 16603, 16848, -332}, {-338, 16357, 17092, -328}, {-340, 16111, 17335, -323}, {-340, 15864, 17577, -317},
|
||||
{-341, 15617, 17817, -310}, {-341, 15369, 18057, -302}, {-341, 15121, 18295, -294}, {-339, 14873, 18531, -284},
|
||||
{-337, 14625, 18765, -273}, {-335, 14377, 18998, -261}, {-332, 14130, 19230, -248}, {-328, 13882, 19459, -234},
|
||||
{-325, 13635, 19686, -218}, {-321, 13389, 19911, -201}, {-316, 13143, 20134, -183}, {-311, 12898, 20354, -163},
|
||||
{-306, 12653, 20571, -143}, {-302, 12409, 20786, -121}, {-296, 12166, 20999, -97}, {-290, 11924, 21208, -71},
|
||||
{-283, 11684, 21415, -44}, {-277, 11444, 21618, -16}, {-271, 11206, 21818, 15}, {-265, 10970, 22015, 47},
|
||||
{-258, 10735, 22208, 81}, {-250, 10501, 22399, 117}, {-243, 10269, 22586, 154}, {-237, 10038, 22769, 194},
|
||||
{-230, 9809, 22948, 236}, {-222, 9583, 23123, 279}, {-215, 9358, 23295, 324}, {-209, 9135, 23462, 371},
|
||||
{-202, 8914, 23626, 420}, {-194, 8695, 23785, 472}, {-187, 8478, 23940, 526}, {-181, 8264, 24091, 583},
|
||||
{-174, 8052, 24237, 641}, {-166, 7842, 24379, 701}, {-159, 7635, 24516, 764}, {-153, 7430, 24648, 829},
|
||||
{-146, 7227, 24776, 897}, {-140, 7027, 24899, 967}, {-133, 6830, 25018, 1040}, {-127, 6635, 25131, 1115},
|
||||
{-121, 6442, 25239, 1193}, {-115, 6253, 25342, 1274}, {-109, 6066, 25440, 1357}, {-103, 5882, 25533, 1442},
|
||||
{-98, 5701, 25621, 1531}, {-92, 5522, 25704, 1622}, {-87, 5347, 25780, 1716}, {-81, 5174, 25852, 1813},
|
||||
{-76, 5004, 25919, 1912}, {-72, 4837, 25980, 2015}, {-67, 4673, 26035, 2120}, {-63, 4512, 26085, 2227},
|
||||
{-58, 4354, 26130, 2338}, {-54, 4199, 26169, 2451}, {-50, 4046, 26202, 2568}, {-46, 3897, 26230, 2688},
|
||||
{-42, 3751, 26253, 2811}, {-38, 3608, 26270, 2936}, {-34, 3467, 26281, 3064}, {-32, 3329, 26287, 3195}}};
|
||||
|
||||
std::vector<i16> Resampler::ResampleBuffer(std::vector<i16> &inputBuffer, double ratio, int channelCount) {
|
||||
uint step = static_cast<uint>(ratio * 0x8000);
|
||||
uint outputSize = static_cast<uint>(static_cast<double>(inputBuffer.size()) / ratio);
|
||||
std::vector<i16> outputBuffer(static_cast<size_t>(outputSize));
|
||||
|
||||
const std::array<skyline::audio::LutEntry, 128> &lut = [step] {
|
||||
if (step > 0xaaaa) {
|
||||
return curveLut0;
|
||||
} else if (step <= 0x8000) {
|
||||
return curveLut1;
|
||||
} else {
|
||||
return curveLut2;
|
||||
}
|
||||
} ();
|
||||
|
||||
for (uint outIndex = 0, inIndex = 0; outIndex < outputBuffer.size(); outIndex += channelCount) {
|
||||
uint lutIndex = (fraction >> 8) << 2;
|
||||
|
||||
for (int channel = 0; channel < channelCount; channel++) {
|
||||
int data = inputBuffer[(inIndex + 0) * channelCount + channel] * lut[lutIndex].a +
|
||||
inputBuffer[(inIndex + 1) * channelCount + channel] * lut[lutIndex].b +
|
||||
inputBuffer[(inIndex + 2) * channelCount + channel] * lut[lutIndex].c +
|
||||
inputBuffer[(inIndex + 3) * channelCount + channel] * lut[lutIndex].d;
|
||||
|
||||
outputBuffer[outIndex + channel] = static_cast<i16>(std::clamp(data >> 15,
|
||||
static_cast<int>(std::numeric_limits<i16>::min()), static_cast<int>(std::numeric_limits<i16>::max())));
|
||||
}
|
||||
|
||||
uint newOffset = fraction + step;
|
||||
inIndex += newOffset >> 15;
|
||||
fraction = newOffset & 0x7fff;
|
||||
}
|
||||
|
||||
return outputBuffer;
|
||||
}
|
||||
}
|
||||
22
app/src/main/cpp/skyline/audio/resampler.h
Normal file
22
app/src/main/cpp/skyline/audio/resampler.h
Normal file
@ -0,0 +1,22 @@
|
||||
#pragma once
|
||||
|
||||
#include <common.h>
|
||||
|
||||
namespace skyline::audio {
|
||||
/**
|
||||
* @brief The Resampler class handles resampling audio PCM data
|
||||
*/
|
||||
class Resampler {
|
||||
private:
|
||||
uint fraction{}; //!< The fractional value used for storing the resamplers last frame
|
||||
|
||||
public:
|
||||
/**
|
||||
* @brief Resamples the given sample buffer by the given ratio
|
||||
* @param inputBuffer A buffer containing PCM sample data
|
||||
* @param ratio The conversion ratio needed
|
||||
* @param channelCount The amount of channels the buffer contains
|
||||
*/
|
||||
std::vector<i16> ResampleBuffer(std::vector<i16> &inputBuffer, double ratio, int channelCount);
|
||||
};
|
||||
}
|
||||
@ -30,7 +30,7 @@ namespace skyline::service::audout {
|
||||
response.Push(static_cast<u32>(audio::AudioOutState::Stopped));
|
||||
}
|
||||
|
||||
IAudioOut::IAudioOut(const DeviceState &state, ServiceManager &manager, int channelCount, int sampleRate) : releaseEvent(std::make_shared<type::KEvent>(state)), BaseService(state, manager, false, Service::audout_IAudioOut, {
|
||||
IAudioOut::IAudioOut(const DeviceState &state, ServiceManager &manager, int channelCount, int sampleRate) : sampleRate(sampleRate), channelCount(channelCount), releaseEvent(std::make_shared<type::KEvent>(state)), BaseService(state, manager, false, Service::audout_IAudioOut, {
|
||||
{0x0, SFUNC(IAudioOut::GetAudioOutState)},
|
||||
{0x1, SFUNC(IAudioOut::StartAudioOut)},
|
||||
{0x2, SFUNC(IAudioOut::StopAudioOut)},
|
||||
@ -39,7 +39,7 @@ namespace skyline::service::audout {
|
||||
{0x5, SFUNC(IAudioOut::GetReleasedAudioOutBuffer)},
|
||||
{0x6, SFUNC(IAudioOut::ContainsAudioOutBuffer)}
|
||||
}) {
|
||||
track = state.audio->OpenTrack(channelCount, sampleRate, [this]() { this->releaseEvent->Signal(); });
|
||||
track = state.audio->OpenTrack(channelCount, audio::constant::SampleRate, [this]() { this->releaseEvent->Signal(); });
|
||||
}
|
||||
|
||||
IAudioOut::~IAudioOut() {
|
||||
@ -74,6 +74,7 @@ namespace skyline::service::audout {
|
||||
|
||||
tmpSampleBuffer.resize(data.sampleSize / sizeof(i16));
|
||||
state.process->ReadMemory(tmpSampleBuffer.data(), data.sampleBufferPtr, data.sampleSize);
|
||||
resampler.ResampleBuffer(tmpSampleBuffer, static_cast<double>(sampleRate) / audio::constant::SampleRate, channelCount);
|
||||
track->AppendBuffer(tmpSampleBuffer, tag);
|
||||
}
|
||||
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
#pragma once
|
||||
|
||||
#include <audio/resampler.h>
|
||||
#include <audio.h>
|
||||
#include <services/base_service.h>
|
||||
#include <services/serviceman.h>
|
||||
@ -33,10 +34,14 @@ namespace skyline::service::audout {
|
||||
*/
|
||||
class IAudioOut : public BaseService {
|
||||
private:
|
||||
audio::Resampler resampler; //!< The audio resampler object used to resample audio
|
||||
std::shared_ptr<audio::AudioTrack> track; //!< The audio track associated with the audio out
|
||||
std::shared_ptr<type::KEvent> releaseEvent; //!< The KEvent that is signalled when a buffer has been released
|
||||
std::vector<i16> tmpSampleBuffer; //!< A temporary buffer used to store sample data in AppendAudioOutBuffer
|
||||
|
||||
int sampleRate; //!< The sample rate of the audio out
|
||||
int channelCount; //!< The amount of channels in the data sent to the audio out
|
||||
|
||||
public:
|
||||
/**
|
||||
* @param channelCount The channel count of the audio data the audio out will be fed
|
||||
|
||||
Loading…
Reference in New Issue
Block a user