nick/DS5Dongle-OLED-Edition-steam-machine
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将音量调节的范围设为 -100 到 0 (当前无作用), 明确增益的位置

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awalol
2026-03-17 16:52:38 +08:00
parent 958adb9cdb
commit 94530dd9a4
2 changed files with 10 additions and 8 deletions
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src/audio.cpp
+7 -6
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@@ -10,9 +10,10 @@
#define INPUT_CHANNELS 4
#define OUTPUT_CHANNELS 2
#define SAMPLE_SIZE 64
#define REPORT_SIZE 142
#define REPORT_ID 0x32
#define SAMPLE_SIZE 64
#define REPORT_SIZE 142
#define REPORT_ID 0x32
#define VOLUME_GAIN 2
static WDL_Resampler resampler;
static uint8_t reportSeqCounter = 0;
@@ -47,9 +48,9 @@ void audio_loop() {
// 4. 转换为int8并缓冲，满64字节即组包发送
for (int i = 0; i < out_frames; i++) {
int val_l = (int) (out_buf[i * 2] * 254.0f);
int val_r = (int) (out_buf[i * 2 + 1] * 254.0f);
haptic_buf[haptic_buf_pos++] = (int8_t) std::clamp(val_l, -128, 127);
int val_l = (int) (out_buf[i * 2] * 127.0f * VOLUME_GAIN);
int val_r = (int) (out_buf[i * 2 + 1] * 127.0f * VOLUME_GAIN);
haptic_buf[haptic_buf_pos++] = (int8_t) std::clamp(val_l, -128, 127); // 似乎clamp有点多余？还是以防万一吧
haptic_buf[haptic_buf_pos++] = (int8_t) std::clamp(val_r, -128, 127);
if (haptic_buf_pos != SAMPLE_SIZE) {