技能备份 - 2026-04-15 (40个技能)

2026-04-15 18:53:15 +08:00
parent f62f14814f
commit c65fce24e4
791 changed files with 190773 additions and 0 deletions
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+"""Generate Discord voice message waveform from an ogg file.
+Usage: gen_waveform.py <ogg_file>
+Output: JSON with duration_secs and base64-encoded waveform (256 points, 0-255).
+"""
+
+import subprocess
+import struct
+import base64
+import json
+import sys
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: gen_waveform.py <ogg_file>")
+        sys.exit(1)
+
+    ogg_file = sys.argv[1]
+
+    # Get duration
+    result = subprocess.run(
+        ["ffprobe", "-v", "error", "-show_entries", "format=duration",
+         "-of", "csv=p=0", ogg_file],
+        capture_output=True, text=True
+    )
+    duration_secs = float(result.stdout.strip())
+
+    # Extract raw PCM (mono, 16-bit, 48kHz)
+    result = subprocess.run(
+        ["ffmpeg", "-i", ogg_file, "-f", "s16le", "-ac", "1",
+         "-ar", "48000", "-"],
+        capture_output=True
+    )
+    pcm_data = result.stdout
+
+    # Parse samples
+    num_samples = len(pcm_data) // 2
+    samples = struct.unpack(f"<{num_samples}h", pcm_data[:num_samples * 2])
+
+    # Generate 256-point waveform
+    points = 256
+    chunk_size = max(1, num_samples // points)
+    waveform = []
+
+    for i in range(points):
+        start = i * chunk_size
+        end = min(start + chunk_size, num_samples)
+        if start >= num_samples:
+            waveform.append(0)
+            continue
+        chunk = samples[start:end]
+        avg = sum(abs(s) for s in chunk) / len(chunk)
+        # Map to 0-255
+        val = min(255, int(avg / 32768 * 255))
+        waveform.append(val)
+
+    waveform_b64 = base64.b64encode(bytes(waveform)).decode()
+
+    print(json.dumps({
+        "duration_secs": round(duration_secs, 2),
+        "waveform": waveform_b64
+    }))
+
+if __name__ == "__main__":
+    main()