MarcelineVPQandClaude Opus 4.7
da63e2bb72
The BT mic decode path gained a decoded-frame jitter buffer (8 frames) drained at a steady 10 ms playout cadence. Bursty BT delivery is smoothed; a dropped mic frame during an active session is concealed with an Opus PLC frame (opus_decode(decoder, NULL, 0, ...)) instead of leaving a hole the host hears as a click/dropout. Playout pre-buffers 3 frames and stops after 300 ms of no real frames so it never emits comfort noise when the mic is idle. New "Mic PLC:" Diagnostics counter climbs only when concealment fires (a live link-quality gauge). Verified on hardware: forced BT loss kept captured audio gap-free (longest zero-run ~0 ms) while the counter climbed; clean link leaves it idle. Adds ~30 ms mic latency (the pre-buffer). Design ported from SundayMoments/DS5_Bridge (credit). Unreleased — batching with the next feature. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
//
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// Created by awalol on 2026/3/5.
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//
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#ifndef DS5_BRIDGE_AUDIO_H
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#define DS5_BRIDGE_AUDIO_H
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#include <cstdint>
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void audio_init();
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void audio_loop();
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void core1_entry();
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void set_headset(bool state);
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// Accessors used by the optional OLED add-on (diag + VU meter screens).
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uint32_t audio_fifo_drops();
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uint32_t opus_fifo_drops();
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uint8_t audio_peak_speaker(); // 0..255, decays on read
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uint8_t audio_peak_haptic(); // 0..255, decays on read
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// Byte-flow counters for the Diagnostics screen + web emulator.
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uint32_t audio_usb_frames();
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uint32_t audio_bt_packets();
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uint32_t audio_mic_frames(); // count of mic Opus frames decoded + written
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int32_t audio_mic_last_decoded(); // last opus_decode return — neg = error, 480 = OK
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uint16_t audio_mic_last_want(); // bytes asked of tud_audio_write
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uint16_t audio_mic_last_wrote(); // bytes TinyUSB FIFO actually accepted
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uint8_t audio_mic_last_toc(); // first byte of last Opus packet (frame config)
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uint32_t audio_mic_plc_frames(); // count of packet-loss-concealment frames generated
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// Called from on_bt_data() in main.cpp when the DS5 sends a mic-tagged
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// 0x31 input report. Buffer must point at MIC_OPUS_SIZE (71) bytes of
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// Opus payload.
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void mic_add_queue(const uint8_t *data);
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#endif //DS5_BRIDGE_AUDIO_H
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