FFMPEG::Error on Uploading Video to production

Question

I am currently developing an app which involves uploading video to the server. The video is on .MOV format since it comes from an iOS Device. I have set-up FFMPEG on the server already. But everytime I try to upload a video, an FFMPEG error comes out:

FFMPEG::Error (Failed encoding.Errors: encoded file is invalid. Full output: ffmpeg version 2.0.1 Copyright (c) 2000-2013 the FFmpeg developers built on Oct 26 2015 08:48:47 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5) configuration: --enable-gpl --enable-version3 --enable-shared --enable-nonfree --enable-postproc libavutil 52. 38.100 / 52. 38.100 libavcodec 55. 18.102 / 55. 18.102 libavformat 55. 12.100 / 55. 12.100 libavdevice 55. 3.100 / 55. 3.100 libavfilter 3. 79.101 / 3. 79.101 libswscale 2. 3.100 / 2. 3.100 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 3.100 / 52. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/deploy/production/pinoymobiledirectory-ws/public/uploads/tmp/20151029-0424-12438-7062/tmpfile': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2015-10-29 04:24:11 Duration: 00:00:05.38, start: 0.000000, bitrate: 784 kb/s Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s Metadata: creation_time : 2 015-10-29 04:24:11 handler_name : Core Media Data Handler Stream #0:1(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 480x360, 715 kb/s, 30.11 fps, 29.97 tbr, 600 tbn, 1200 tbc Metadata: rotate : 90 creation_time : 2015-10-29 04:24:11 handler_name : Core Media Data Handler [aac @ 0x143c980] The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it. ):

lib/carrierwave/ffmpeg.rb:19:in encode_video' app/controllers/v1/businesses_assets_controller.rb:33:in upload_video'

Anyone who also got the same error as mine? How did you solved it?

Answer 1

The key part of the message is 'The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it'.

You need to add this flag to your ffmpeg command. For example the following command, which will compress an mp4 video, contains this flag:

ffmpeg -i BigBuckBunny_320x180.mp4 -strict experimental -acodec aac CompressedBBB_320x180_aac.mp4

Answer 2

Fixed it by installing the latest FFMPEG. Followed this guide: https://gist.github.com/xdamman/e4f713c8cd1a389a5917