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M4: add ffmpeg-full licensing evaluation for M5's doc

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Warren
2026-05-08 13:28:16 +08:00
parent 3ff783e4aa
commit f469197ce6
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docs_v1.0/M4_workspace/2026-05-08_response_ffmpeg_evaluation.md
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# M4 Response: FFmpeg DrawText 選型回饋
## ffmpeg-full 商用授權
M4 安裝了 `ffmpeg-full`（含 drawtext filter），經評估無商用風險：
| 函式庫 | 授權 | 說明 |
|--------|:----:|------|
| libfreetype (drawtext) | LGPL | ✅ 商用 OK |
| libfontconfig | LGPL | ✅ 商用 OK |
| libx264（原本就有） | GPL | ⚠️ 但 Momentry 以 subprocess 呼叫 ffmpeg，非動態連結，不構成衍生著作 |
➡ 建議加到 M5 的 `ffmpeg_drawtext_evaluation.md` 中。
## M4 已處理
| 問題 | 狀態 |