there is something i want to do
音楽の長さを増やすために音楽Fileを連結したい。
連結する回数を増やせば、なが～い音楽Fileの作成も可能
Syntax
書式
ffmpeg -i input1.mp3 -i input2.mp3 -filter_complex “concat=n=2:v=0:a=1” output.mp3
ffmpeg -i input1.mp3 -i input2.mp3 -filter_complex “concat=n=2:v=0:a=1” output.mp3
Comment
Commnet
-i で複数の入力を指定
-o で連結後の出力Fielを指定
-i で複数の入力を指定
-o で連結後の出力Fielを指定
2個以上のFileの結合も可能
2個以上の結合の場合には”concat=n=2:v=0:a=1”の
n=の部分に結合するFileの数を指定します。
Example
#
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#ffmpeg -i input1.mp3 -i input2.mp3 -filter_complex "concat=n=2:v=0:a=1" output.mp3
ffmpeg version 3.4.2-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --dis
able-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-
libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg -
-enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-lib
vidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable
-libzimg
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mp3, from 'input1.mp3':
Metadata:
encoder : Lavf57.56.101
Duration: 00:05:00.15, start: 0.025057, bitrate: 192 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
Metadata:
encoder : Lavc57.64
Input #1, mp3, from 'input2.mp3':
Metadata:
encoder : Lavf57.56.101
Duration: 00:05:00.15, start: 0.025057, bitrate: 192 kb/s
Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
Metadata:
encoder : Lavc57.64
Stream mapping:
Stream #0:0 (mp3) -> concat:in0:a0
Stream #1:0 (mp3) -> concat:in1:a0
concat -> Stream #0:0 (libmp3lame)
Press [q] to stop, [?] for help
Output #0, mp3, to 'output.mp3':
Metadata:
TSSE : Lavf57.83.100
Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p (default)
Metadata:
encoder : Lavc57.107.100 libmp3lame
size= 9379kB time=00:10:00.21 bitrate= 128.0kbits/s speed=8.55x
video:0kB audio:9379kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.002634%
#
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