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FDK AAC 編碼器

Jul 31st 2014, 10:55

編輯中......

使用 CLI 介面必須要會用基本的 CMD

CLI 使用說明: 這裡
CMD 入門教學: 這裡

----------------------------------------------------------------

設定 Profile

ffmpeg
--profile:a <string>
fdkaac
-p, --profile <n>

ffmpeg

ffmpeg -i input.wav -c:a libfdk_aac -profile:a aac_he output.m4a

fdkaac

fdkaac --ignorelength --profile 5 input.wav

== Profile list ==
2, aac_low
　 - MPEG-4 AAC LC (default)
5, aac_he
　 - MPEG-4 HE-AAC (SBR)
29, aac_he_v2
　 - MPEG-4 HE-AAC v2 (SBR+PS)
23, aac_ld
- MPEG-4 AAC LD
39, aac_eld
　 - MPEG-4 AAC ELD
129, (ffmpeg 無此選項)
　 - MPEG-2 AAC LC
132, (ffmpeg 無此選項)
　 - MPEG-2 HE-AAC (SBR)
156, (ffmpeg 無此選項)
　 - MPEG-2 HE-AAC v2 (SBR+PS)

----------------------------------------------------------------

FFmpeg (libfdk-aac)

直接執行 ffmpeg.exe，檢查 configuration 裡是否有 --enable-libfdk-aac

https://www.ffmpeg.org/ffmpeg-all.html#libfdk_005faac

----------------------------------------------------------------

pipe ffmpeg to fdkaac
ffmpeg -i input.mkv -vn -async 1 -f wav - | fdkaac --ignorelength --profile 5 -

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