blumia
18dbc9c8d3
Add a C++/Qt6/CMake CLI prototype that captures the default sink monitor through libpulse and transcribes it in-process with Qwen3-ASR via libllama/libmtmd. Add phase 0/1 verification docs. 新增实时字幕命令行原型：libpulse 采集默认输出 monitor，进程内用 libllama/libmtmd 跑 Qwen3-ASR 推理。附阶段 0/1 验证文档。
26 lines
969 B
Bash
Executable File
26 lines
969 B
Bash
Executable File
#!/usr/bin/env bash
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# Phase 0: 验证"系统播放音频 → monitor 源采集"链路
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# 用法: ./loopback_test.sh <要播放的音频文件> <输出wav>
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set -euo pipefail
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SRC="${1:?usage: loopback_test.sh <file> <out.wav>}"
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OUT="${2:?usage: loopback_test.sh <file> <out.wav>}"
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echo "默认 sink : $(pactl get-default-sink)"
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echo "默认 sink 的 monitor: $(pactl get-default-sink).monitor"
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# 1) 后台开始录制默认输出的 monitor（48k 立体声 float32，与设备速率一致）
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parec -d @DEFAULT_MONITOR@ --format=float32le --rate=48000 --channels=2 \
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--file-format=wav "$OUT" &
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REC=$!
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sleep 0.6 # 等录制真正开始
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# 2) 播放测试音频到默认输出
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paplay --device="$(pactl get-default-sink)" "$SRC"
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sleep 0.6
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kill "$REC" 2>/dev/null || true
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wait "$REC" 2>/dev/null || true
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echo "采集完成: $OUT"
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ffprobe -v error -show_entries format=duration -of csv=p=0 "$OUT" | awk '{printf "采集时长: %.2f s\n",$1}'
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