http://kiros33.blog.me/220482879274
Revision History
2015/09/16 10:34:34 - 최초 작성
Reference Page
맥 패키지 관리자 - Homebrew 간단한 소개
맥의 터미널에서 명령줄로 M4A 포맷을 MP3 포맷으로 변환하는 방법(FFMPEG)
우선 FFMPEG가 필요합니다.
이미 맥에 brew가 설치되어 있으므로 'brew install ffmpeg' 명령으로 바로 설치했습니다.
$ brew install ffmpeg
==> Installing dependencies for ffmpeg: x264, lame, libvo-aacenc, xvid
==> Installing ffmpeg dependency: x264
==> Downloading https://homebrew.bintray.com/bottles/x264-r2533.yosemite.bottle.tar.gz
######################################################################## 100.0%
==> Pouring x264-r2533.yosemite.bottle.tar.gz
� /usr/local/Cellar/x264/r2533: 9 files, 3.4M
==> Installing ffmpeg dependency: lame
==> Downloading https://homebrew.bintray.com/bottles/lame-3.99.5.yosemite.bottle.1.tar.gz
######################################################################## 100.0%
==> Pouring lame-3.99.5.yosemite.bottle.1.tar.gz
� /usr/local/Cellar/lame/3.99.5: 25 files, 2.1M
==> Installing ffmpeg dependency: libvo-aacenc
==> Downloading https://homebrew.bintray.com/bottles/libvo-aacenc-0.1.3.yosemite.bottle.tar.gz
######################################################################## 100.0%
==> Pouring libvo-aacenc-0.1.3.yosemite.bottle.tar.gz
� /usr/local/Cellar/libvo-aacenc/0.1.3: 15 files, 336K
==> Installing ffmpeg dependency: xvid
==> Downloading https://homebrew.bintray.com/bottles/xvid-1.3.3.yosemite.bottle.2.tar.gz
######################################################################## 100.0%
==> Pouring xvid-1.3.3.yosemite.bottle.2.tar.gz
� /usr/local/Cellar/xvid/1.3.3: 9 files, 1.3M
==> Installing ffmpeg
==> Downloading https://homebrew.bintray.com/bottles/ffmpeg-2.6.2.yosemite.bottle.tar.gz
######################################################################## 100.0%
==> Pouring ffmpeg-2.6.2.yosemite.bottle.tar.gz
==> Caveats
FFmpeg has been built without libfaac for licensing reasons;
libvo-aacenc is used by default.
To install with libfaac, you can:
brew reinstall ffmpeg --with-faac
You can also use the experimental FFmpeg encoder, libfdk-aac, or
libvo_aacenc to encode AAC audio:
ffmpeg -i input.wav -c:a aac -strict experimental output.m4a
Or:
brew reinstall ffmpeg --with-fdk-aac
ffmpeg -i input.wav -c:a libfdk_aac output.m4a
==> Summary
� /usr/local/Cellar/ffmpeg/2.6.2: 204 files, 42M
==> Installing dependencies for ffmpeg: x264, lame, libvo-aacenc, xvid
==> Installing ffmpeg dependency: x264
==> Downloading https://homebrew.bintray.com/bottles/x264-r2533.yosemite.bottle.tar.gz
######################################################################## 100.0%
==> Pouring x264-r2533.yosemite.bottle.tar.gz
� /usr/local/Cellar/x264/r2533: 9 files, 3.4M
==> Installing ffmpeg dependency: lame
==> Downloading https://homebrew.bintray.com/bottles/lame-3.99.5.yosemite.bottle.1.tar.gz
######################################################################## 100.0%
==> Pouring lame-3.99.5.yosemite.bottle.1.tar.gz
� /usr/local/Cellar/lame/3.99.5: 25 files, 2.1M
==> Installing ffmpeg dependency: libvo-aacenc
==> Downloading https://homebrew.bintray.com/bottles/libvo-aacenc-0.1.3.yosemite.bottle.tar.gz
######################################################################## 100.0%
==> Pouring libvo-aacenc-0.1.3.yosemite.bottle.tar.gz
� /usr/local/Cellar/libvo-aacenc/0.1.3: 15 files, 336K
==> Installing ffmpeg dependency: xvid
==> Downloading https://homebrew.bintray.com/bottles/xvid-1.3.3.yosemite.bottle.2.tar.gz
######################################################################## 100.0%
==> Pouring xvid-1.3.3.yosemite.bottle.2.tar.gz
� /usr/local/Cellar/xvid/1.3.3: 9 files, 1.3M
==> Installing ffmpeg
==> Downloading https://homebrew.bintray.com/bottles/ffmpeg-2.6.2.yosemite.bottle.tar.gz
######################################################################## 100.0%
==> Pouring ffmpeg-2.6.2.yosemite.bottle.tar.gz
==> Caveats
FFmpeg has been built without libfaac for licensing reasons;
libvo-aacenc is used by default.
To install with libfaac, you can:
brew reinstall ffmpeg --with-faac
You can also use the experimental FFmpeg encoder, libfdk-aac, or
libvo_aacenc to encode AAC audio:
ffmpeg -i input.wav -c:a aac -strict experimental output.m4a
Or:
brew reinstall ffmpeg --with-fdk-aac
ffmpeg -i input.wav -c:a libfdk_aac output.m4a
==> Summary
� /usr/local/Cellar/ffmpeg/2.6.2: 204 files, 42M
그리고 변환하면 됩니다.
$ ffmpeg -i file.m4a -acodec libmp3lame -ab 128k file.mp3
ffmpeg version 2.6.2 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM 3.6.0svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.6.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file.m4a':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6mp41
creation_time : 2014-02-12 13:45:13
Duration: 00:04:00.58, start: 0.000000, bitrate: 95 kb/s
Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 93 kb/s (default)
Metadata:
creation_time : 2014-02-12 13:45:13
handler_name : SoundHandler
Output #0, mp3, to 'file.mp3':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6mp41
TSSE : Lavf56.25.101
Stream #0:0(und): Audio: mp3 (libmp3lame), 44100 Hz, mono, fltp, 128 kb/s (default)
Metadata:
creation_time : 2014-02-12 13:45:13
handler_name : SoundHandler
encoder : Lavc56.26.100 libmp3lame
Stream mapping:
Stream #0:0 -> #0:0 (aac (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
size= 3760kB time=00:04:00.58 bitrate= 128.0kbits/s
video:0kB audio:3760kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.014416%
변경 전과 후 파일 정보입니다.
검색: Macintosh, 매킨토시, Mac, 맥, OS X, Convert M4A to MP3 using FFMPEG, Terminal, 터미널, Command line, CLI, 명령줄, 명령 줄, Command-line, Brew,
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