请问 iPhone 录的视频(mp4)转码成什么格式有较高的压缩比且质量下降有限？

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Supplement 1 · Feb 15, 2014

标题里的"(mp4)"写错了，应为"(MOV)"

转码

mp4

iPhone

12 replies • 1970-01-01 08:00:00 +08:00

cohsin

Feb 15, 2014 via iPhone

X264封包成mkv
分辨率不动
码率嘛，感觉1500-2000k跟原文件比就看不这么出区别了…
这样下来，文件大小最多最多只有原文件的1/2。
如要更小，适当调整分辨率和码率就是。

alexrezit

Feb 15, 2014 via iPad

@cohsin
有必要封成 mkv?

cohsin

Feb 15, 2014 via iPhone

@alexrezit
个人习惯而已:-)
mp4也好，可以直接扔进多数设备播放…

rAYz

Feb 15, 2014

x264 --crf 23 --preset slower --tune film -o "路径\视频流临时输出.mkv" "路径\输入视频.mp4"
ffmpeg -i "输入视频.mp4" -vn -ac 2 -f wav pipe:|neroAacEnc -ignorelength -q 0.2 -if - -of "路径\音频流临时输出.m4a"
mkvmerge -o "路径\最终输出视频.mkv" "--language" "0:und" "--forced-track" "0:no" "-d" "0" "-A" "-S" "-T" "--no-global-tags" "--no-chapters" "(" "路径\视频流临时输出.mkv" ")" "--language" "0:und" "--forced-track" "0:no" "-a" "0" "-D" "-S" "-T" "--no-global-tags" "--no-chapters" "(" "路径\音频流临时输出.m4a" ")" "--track-order" "0:0,1:0"
if exist "路径\最终输出视频.mkv" del/f/q "路径\视频流临时输出.mkv"&&del/f/q "路径\音频流临时输出.m4a"

rAYz

Feb 15, 2014

上了个厕所，忽然想到如果懒得折腾，传到YouTube上，转码完成后再下载下来，现成压好了