1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "audio_core/adsp/apps/audio_renderer/command_list_processor.h"
#include "audio_core/renderer/command/resample/downmix_6ch_to_2ch.h"
namespace AudioCore::Renderer {
void DownMix6chTo2chCommand::Dump(
[[maybe_unused]] const AudioRenderer::CommandListProcessor& processor, std::string& string) {
string += fmt::format("DownMix6chTo2chCommand\n\tinputs: ");
for (u32 i = 0; i < MaxChannels; i++) {
string += fmt::format("{:02X}, ", inputs[i]);
}
string += "\n\toutputs: ";
for (u32 i = 0; i < MaxChannels; i++) {
string += fmt::format("{:02X}, ", outputs[i]);
}
string += "\n";
}
void DownMix6chTo2chCommand::Process(const AudioRenderer::CommandListProcessor& processor) {
auto in_front_left{
processor.mix_buffers.subspan(inputs[0] * processor.sample_count, processor.sample_count)};
auto in_front_right{
processor.mix_buffers.subspan(inputs[1] * processor.sample_count, processor.sample_count)};
auto in_center{
processor.mix_buffers.subspan(inputs[2] * processor.sample_count, processor.sample_count)};
auto in_lfe{
processor.mix_buffers.subspan(inputs[3] * processor.sample_count, processor.sample_count)};
auto in_back_left{
processor.mix_buffers.subspan(inputs[4] * processor.sample_count, processor.sample_count)};
auto in_back_right{
processor.mix_buffers.subspan(inputs[5] * processor.sample_count, processor.sample_count)};
auto out_front_left{
processor.mix_buffers.subspan(outputs[0] * processor.sample_count, processor.sample_count)};
auto out_front_right{
processor.mix_buffers.subspan(outputs[1] * processor.sample_count, processor.sample_count)};
auto out_center{
processor.mix_buffers.subspan(outputs[2] * processor.sample_count, processor.sample_count)};
auto out_lfe{
processor.mix_buffers.subspan(outputs[3] * processor.sample_count, processor.sample_count)};
auto out_back_left{
processor.mix_buffers.subspan(outputs[4] * processor.sample_count, processor.sample_count)};
auto out_back_right{
processor.mix_buffers.subspan(outputs[5] * processor.sample_count, processor.sample_count)};
for (u32 i = 0; i < processor.sample_count; i++) {
const auto left_sample{(in_front_left[i] * down_mix_coeff[0] +
in_center[i] * down_mix_coeff[1] + in_lfe[i] * down_mix_coeff[2] +
in_back_left[i] * down_mix_coeff[3])
.to_int()};
const auto right_sample{(in_front_right[i] * down_mix_coeff[0] +
in_center[i] * down_mix_coeff[1] + in_lfe[i] * down_mix_coeff[2] +
in_back_right[i] * down_mix_coeff[3])
.to_int()};
out_front_left[i] = left_sample;
out_front_right[i] = right_sample;
}
std::memset(out_center.data(), 0, out_center.size_bytes());
std::memset(out_lfe.data(), 0, out_lfe.size_bytes());
std::memset(out_back_left.data(), 0, out_back_left.size_bytes());
std::memset(out_back_right.data(), 0, out_back_right.size_bytes());
}
bool DownMix6chTo2chCommand::Verify(const AudioRenderer::CommandListProcessor& processor) {
return true;
}
} // namespace AudioCore::Renderer
|
