Same-codec re-muxes (e.g. M4V → AVI where both can hold H.264) produce nearly-identical sizes. Codec changes can swing it dramatically: H.264 → VP9/AV1 typically cuts the file 30-50% at the same visual quality; H.264 → H.265 roughly halves it; VP9 → H.264 grows it.
Same-codec re-mux: under a minute (no re-encode pass). Re-encode to a different codec: typically 0.3-0.7× source duration on our pipeline, so a 1-hour M4V → AVI finishes in 18-40 minutes. AV1 is the slowest target; VP9 and H.265 are mid-range; H.264 is fastest.
为 M4V 到 AVI 所支持的最大分辨率是什么?
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最多为8K(7680x4320)(Premium); 免费用户上限为每文件大小限制的4K(3840x2160)/每文件的4K(3840x2160)/HDR元数据(HDR10, Dolby Vision)在M4V 和AVI 容器支持它的地方得到保存; 当 AVI 管道无法持有《人类发展报告》时提供对特别提款权的音调。
Not in the same step — use /trim-video/ or /resize-video/ to clip and crop the M4V first, then queue the M4V → AVI step. Doing them in series is faster than re-encoding the whole file just to shave seconds off the ends.