如何使用streamio-ffmpeg进行多个输入？

问题描述

我想在我的rails应用中重新创建此ffmpeg行（效果很好）：

ffmpeg -i 1.mp4 -i 2.mp4 -filter_complex '[0] [1] afir=dry=10:wet=10' output.wav

这是我的配置：

module EncodingConstants
  PROCESSED_DEFAULTS = {
    resolution:           '500x400',video_codec:          'libx264',constant_rate_factor: '30',frame_rate:           '25',audio_codec:          'aac',audio_bitrate:        '128k',audio_sample_rate:    '48000',progress: :processing_progress
  }.freeze

  AUdio_EFFECTS = {
    multi_effect: %w[-i /home/yozuu/2.mp4 -filter_complex [0] [1] afir=dry=10:wet=10]
 }.freeze

所以Sidekiq将此邮件发回给我：

I,[2020-08-12T19:40:38.828081 #2142]  INFO -- : Running transcoding...
["/sbin/ffmpeg","-y","-i","/home/yozuu/labo/video-project/tmp/1597254011-2142-0001-8820/1.mp4","-vcodec","libx264","-acodec","aac","-s","500x282","/home/yozuu/2.mp4","-filter_complex","'[0]","[1]","afir=dry=10:wet=10'","-r","25","-b:a","128k","-ar","48000","-aspect","1.7730496453900708","/home/yozuu/labo/video-project/tmp/1597254011-2142-0001-8820/1.mp4"]

E,[2020-08-12T19:40:38.897575 #2142] ERROR -- : Failed encoding...
["/sbin/ffmpeg","/home/yozuu/labo/video-project/tmp/1597254011-2142-0001-8820/1.mp4"]


.....

UnkNown decoder 'libx264'

Errors: no output file created. 

我不明白为什么，因为对我而言，命令行ffmpeg似乎是正确的。 有人有主意吗？ 谢谢。

解决方法

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