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Showing SKILL.md
| name | media-processing |
| description | 音视频元信息、转码、抽取音频、抽帧与媒体报告。 |
.mp3/.wav/.m4a/.mp4/.mov/.webm 等），需要读元信息、转码、抽音频、抽帧、做媒体报告。sandbox_transcribe_audio（宿主 ASR 桥）转录。media_info.py 用 ffprobe 看格式/编码/时长/流，决定能否处理。extract_audio.py --sample-rate 16000 --channels 1 归一化，再走宿主 ASR（不在此 Skill 内联网）。extract_audio.py --format mp3 等。extract_frames.py（视频按时间/频率截取 PNG）。media_report.py 输出结构化 JSON（供下游展示/入库存档）。| 脚本 | 用途 |
|---|---|
media_info.py | ffprobe 流/格式元信息 |
extract_audio.py | 抽音频/转码/归一化（ffmpeg） |
extract_frames.py | 视频抽帧为 PNG（ffmpeg） |
media_report.py | 元信息 + 指纹 + 摘要 → JSON 报告 |
视频 ──media_info──> 流信息
录音 ──extract_audio(16k mono)──> wav ──> sandbox_transcribe_audio（宿主 ASR）
视频 ──extract_frames──> 关键帧 PNG
音视频 ──media_report──> report.json
ffmpeg/ffprobe 来自镜像。--ss/--t 限定片段，避免 wall-time 180s 超时。组合配方见 references/best-combinations.md，输入/输出契约见 references/input-output-contract.md，常见失败见 references/troubleshooting.md。每个脚本的完整用法见 scripts/*.md。