321 lines
11 KiB
Python
Executable File
321 lines
11 KiB
Python
Executable File
#!/opt/homebrew/bin/python3.11
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"""
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ASRX Processor - Hybrid Pipeline Wrapper
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Pipeline:
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1. ffprobe → select best audio track → ffmpeg → 16kHz mono WAV
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2. SelfASRXFixed.process() (7-step hybrid speaker diarization)
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3. Convert to Rust-expected format
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"""
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import sys
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import json
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import argparse
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import os
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import subprocess
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import tempfile
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from pathlib import Path
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sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
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sys.path.insert(
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0, os.path.join(os.path.dirname(os.path.abspath(__file__)), "asrx_self")
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)
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from redis_publisher import RedisPublisher
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def probe_audio_tracks(video_path: str) -> list:
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"""ffprobe 列出所有音軌"""
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cmd = [
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"ffprobe", "-v", "quiet", "-print_format", "json",
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"-show_streams", "-select_streams", "a", video_path,
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]
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try:
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result = subprocess.run(cmd, capture_output=True, text=True, timeout=30)
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data = json.loads(result.stdout)
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tracks = []
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for stream in data.get("streams", []):
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tracks.append({
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"index": stream.get("index"),
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"codec": stream.get("codec_name"),
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"language": stream.get("tags", {}).get("language", "und"),
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"channels": stream.get("channels", 0),
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"sample_rate": stream.get("sample_rate", "0"),
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})
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return tracks
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except Exception as e:
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print(f"[ASRX] ffprobe failed: {e}")
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return []
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def select_best_track(tracks: list) -> int:
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"""選最佳音軌: English > 最多channels > 0"""
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if not tracks:
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return 0
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for i, t in enumerate(tracks):
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if t["language"] in ("eng", "en"):
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return i
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best = 0
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for i, t in enumerate(tracks):
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if t["channels"] > tracks[best]["channels"]:
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best = i
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return best
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def extract_audio_to_wav(video_path: str, track_index: int, output_wav: str) -> bool:
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"""ffmpeg 提取音軌為 16kHz mono WAV"""
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cmd = [
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"ffmpeg", "-y", "-v", "quiet",
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"-i", video_path,
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"-map", f"0:{track_index}",
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"-ar", "16000",
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"-ac", "1",
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"-sample_fmt", "s16",
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output_wav,
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]
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try:
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subprocess.run(cmd, check=True, capture_output=True, timeout=300)
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return True
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except Exception as e:
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print(f"[ASRX] ffmpeg extraction failed: {e}")
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return False
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def _cleanup(tmp_dir):
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if tmp_dir and os.path.exists(tmp_dir):
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import shutil
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shutil.rmtree(tmp_dir, ignore_errors=True)
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def _atomic_write(path: str, data: dict):
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tmp = path + ".tmp"
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with open(tmp, "w") as f:
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json.dump(data, f, indent=2)
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os.rename(tmp, path)
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def _shared_audio_setup(video_path):
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"""提取音頻，回傳 (tmp_dir, wav_path)"""
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tracks = probe_audio_tracks(video_path)
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track_idx = select_best_track(tracks) if tracks else 0
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actual_track_index = tracks[track_idx]["index"] if tracks else track_idx
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tmp_dir = tempfile.mkdtemp(prefix="asrx_")
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wav_path = os.path.join(tmp_dir, "audio.wav")
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if extract_audio_to_wav(video_path, actual_track_index, wav_path):
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return tmp_dir, wav_path
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print("[ASRX] Audio extraction failed, falling back to original file",
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file=sys.stderr)
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return tmp_dir, video_path
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def _convert_result(result, output_path):
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"""Stage 3: 將 SelfASRXFixed result 轉為 Rust-expected format"""
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fps = 30.0
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base_name = os.path.basename(output_path)
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uuid_part = base_name.split(".")[0]
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probe_path = os.path.join(os.path.dirname(output_path),
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f"{uuid_part}.probe.json")
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if os.path.exists(probe_path):
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try:
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with open(probe_path) as pf:
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probe_data = json.load(pf)
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if "fps" in probe_data:
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fps = float(probe_data["fps"])
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except Exception:
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pass
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output_result = {
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"language": result.get("language"),
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"segments": [],
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"n_speakers": result.get("n_speakers", 0),
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"speaker_stats": result.get("speaker_stats", {}),
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}
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for seg in result.get("segments", []):
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start_sec = seg["start"]
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end_sec = seg["end"]
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output_result["segments"].append({
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"start_time": start_sec,
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"end_time": end_sec,
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"start_frame": int(start_sec * fps),
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"end_frame": int(end_sec * fps),
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"text": seg.get("text", ""),
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"speaker_id": seg.get("speaker_id", seg.get("speaker", "")),
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"language": seg.get("language", ""),
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"lang_prob": seg.get("lang_prob", 0.0),
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"quality": seg.get("quality", 0.0),
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})
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if "references" in result:
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output_result["references"] = result["references"]
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return output_result
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def process_asrx(video_path: str, output_path: str, uuid: str = "",
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file_uuid: str = "", resume: bool = False):
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"""主處理函數"""
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publisher = RedisPublisher(uuid) if uuid else None
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if publisher:
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publisher.info("asrx", "ASRX_START")
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checkpoint_path = output_path + ".stage1.json"
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# ── Phase 2: Resume from checkpoint (Steps 4-7 only) ──
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if resume and os.path.exists(checkpoint_path):
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print(f"[ASRX] Found checkpoint, resuming from Step 4...")
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tmp_dir, audio_input = _shared_audio_setup(video_path)
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try:
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from asrx_self.main_fixed import SelfASRXFixed
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asrx = SelfASRXFixed()
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result = asrx.resume_from_checkpoint(
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checkpoint_path, audio_input, output_path=output_path,
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)
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if "error" in result:
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if publisher:
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publisher.error("asrx", result["error"])
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output_result = {"language": None, "segments": []}
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_atomic_write(output_path, output_result)
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if publisher:
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publisher.complete("asrx", "0 segments")
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_cleanup(tmp_dir)
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return output_result
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output_result = _convert_result(result, output_path)
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if publisher:
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publisher.info("asrx",
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f"ASRX_COMPLETE:{len(output_result['segments'])}")
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_atomic_write(output_path, output_result)
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if publisher:
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publisher.complete(
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"asrx", f"{len(output_result['segments'])} segments")
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print(f"[ASRX] Saved {len(output_result['segments'])} segments "
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f"to {output_path}", file=sys.stderr)
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# 刪除 checkpoint（完成後清理）
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try:
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os.remove(checkpoint_path)
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print(f"[ASRX] Removed checkpoint: {checkpoint_path}")
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except Exception:
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pass
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_cleanup(tmp_dir)
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return output_result
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except Exception as e:
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if publisher:
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publisher.error("asrx", str(e))
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import traceback
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traceback.print_exc()
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output_result = {"language": None, "segments": []}
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_atomic_write(output_path, output_result)
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if publisher:
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publisher.complete("asrx", "0 segments")
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_cleanup(tmp_dir)
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return output_result
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# ── Phase 1: Full 7-step pipeline ──
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tmp_dir = None
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try:
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# Stage 1: Audio Track Preprocessing
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tmp_dir, audio_input = _shared_audio_setup(video_path)
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# Stage 2: SelfASRXFixed 7-step pipeline
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from asrx_self.main_fixed import SelfASRXFixed
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if publisher:
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publisher.info("asrx", "ASRX_LOADING_MODEL")
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asrx = SelfASRXFixed()
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if publisher:
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publisher.info("asrx", "ASRX_TRANSCRIBING")
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result = asrx.process(
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audio_input,
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output_path=None,
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file_uuid=file_uuid or None,
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max_speakers=10,
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quality_threshold=0.85,
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checkpoint_path=checkpoint_path,
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)
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if "error" in result:
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if publisher:
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publisher.error("asrx", result["error"])
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output_result = {"language": None, "segments": []}
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_atomic_write(output_path, output_result)
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if publisher:
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publisher.complete("asrx", "0 segments")
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_cleanup(tmp_dir)
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return output_result
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# Stage 3: Convert to Rust-expected format
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output_result = _convert_result(result, output_path)
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if publisher:
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publisher.info("asrx", f"ASRX_COMPLETE:{len(output_result['segments'])}")
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_atomic_write(output_path, output_result)
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if publisher:
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publisher.complete("asrx",
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f"{len(output_result['segments'])} segments")
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print(f"[ASRX] Saved {len(output_result['segments'])} segments "
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f"to {output_path}", file=sys.stderr)
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_cleanup(tmp_dir)
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return output_result
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except Exception as e:
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if publisher:
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publisher.error("asrx", str(e))
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import traceback
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traceback.print_exc()
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output_result = {"language": None, "segments": []}
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_atomic_write(output_path, output_result)
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if publisher:
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publisher.complete("asrx", "0 segments")
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# 如果 checkpoint 已存在（Step 3 完成後 crash），保留 WAV 給 resume
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if not os.path.exists(checkpoint_path):
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_cleanup(tmp_dir)
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else:
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print(f"[ASRX] Checkpoint saved, keeping temp dir for resume: {tmp_dir}")
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return output_result
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="ASRX Processor (Hybrid Pipeline)")
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parser.add_argument("video_path", help="Path to video/audio file")
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parser.add_argument("output_path", help="Path to output JSON file")
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parser.add_argument("--uuid", help="UUID for Redis publishing", default="")
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parser.add_argument("--file-uuid", help="File UUID for Qdrant storage", default="")
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parser.add_argument("--resume", action="store_true",
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help="Resume from checkpoint (skip Steps 1-3)")
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args = parser.parse_args()
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if not args.resume and not Path(args.video_path).exists():
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print(f"Error: Video file not found: {args.video_path}")
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sys.exit(1)
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result = process_asrx(args.video_path, args.output_path, args.uuid,
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args.file_uuid, resume=args.resume)
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print("\n[Summary]")
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print(f" Total segments: {len(result.get('segments', []))}")
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if "speaker_stats" in result:
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print(f" Detected speakers: {len(result['speaker_stats'])}")
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for speaker, stats in result["speaker_stats"].items():
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print(f" {speaker}: {stats['count']} segments")
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