encoded file is invalid

[mvasin]

I'm on Ubuntu 16.04.3 with the ffmpeg installed via apt install ffmpeg. ffmpeg version appears to be 2.8.11-0ubuntu0.16.04.1.

I have a very annoying encoded file is invalid error that I haven't had before, so I decided to run tests, and 9 specs out of 190 fail.

One test fails because of a harmless timezone misassumption

  1) FFMPEG::Movie initializing given an awesome movie file should parse the creation_time
     Failure/Error: expect(movie.creation_time).to eq(Time.parse("2010-02-05 16:05:04 UTC"))

       expected: 2010-02-05 16:05:04.000000000 +0000
            got: 2010-02-05 16:05:04.000000000 +0300

       (compared using ==)

       Diff:
       @@ -1,2 +1,2 @@
       -2010-02-05 16:05:04 UTC
       +2010-02-05 16:05:04 +0300

     # ./spec/ffmpeg/movie_spec.rb:392:in `block (4 levels) in <module:FFMPEG>'

and the reason for the rest to fail is 'encoded file is invalid', something like

  2) FFMPEG::Transcoder transcoding with default transcoder_options should encode to the specified duration if given
     Failure/Error: raise Error, "Failed encoding.#{errors}Full output: #{@output}"

     FFMPEG::Error:
       Failed encoding.Errors: ffmpeg returned non-zero exit code, encoded file is invalid. Full output: ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
         built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
         configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
         libavutil      54. 31.100 / 54. 31.100
         libavcodec     56. 60.100 / 56. 60.100
         libavformat    56. 40.101 / 56. 40.101
         libavdevice    56.  4.100 / 56.  4.100
         libavfilter     5. 40.101 /  5. 40.101
         libavresample   2.  1.  0 /  2.  1.  0
         libswscale      3.  1.101 /  3.  1.101
         libswresample   1.  2.101 /  1.  2.101
         libpostproc    53.  3.100 / 53.  3.100
       Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/root/streamio-ffmpeg/spec/fixtures/movies/awesome movie.mov':
         Metadata:
           major_brand     : qt
           minor_version   : 0
           compatible_brands: qt
           creation_time   : 2010-02-05 16:05:04
         Duration: 00:00:07.56, start: 0.000000, bitrate: 481 kb/s
           Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 75 kb/s (default)
           Metadata:
             creation_time   : 2010-02-05 16:05:04
             handler_name    : Core Media Data Handler
           Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x480 [SAR 1:1 DAR 4:3], 371 kb/s, 16.75 fps, 600 tbr, 600 tbn, 1200 tbc (default)
           Metadata:
             creation_time   : 2010-02-05 16:05:04
             handler_name    : Core Media Data Handler
             encoder         : H.264
       [libx264 @ 0x1718440] using SAR=1/1
       [libx264 @ 0x1718440] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
       [libx264 @ 0x1718440] profile High, level 2.2
       [libx264 @ 0x1718440] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=16 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
       [aac @ 0x16c6ae0] The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.
     # ./lib/ffmpeg/transcoder.rb:113:in `validate_output_file'
     # ./lib/ffmpeg/transcoder.rb:43:in `run'
     # ./spec/ffmpeg/transcoder_spec.rb:193:in `block (4 levels) in <module:FFMPEG>'

[mvasin]

Tried this on a mac laptop, and all tests passed (ffmpeg version 3.3.1).

[mvasin]

Tried on Debian, and all tests passed but

  1) FFMPEG.ffmpeg_binary should default to finding from path
     Failure/Error: expect(FFMPEG.ffmpeg_binary).to eq FFMPEG.which('ffprobe')

       expected: "/usr/local/bin/ffmpeg"
            got: "/usr/bin/ffmpeg"

       (compared using ==)
     # ./spec/streamio-ffmpeg_spec.rb:33:in `block (3 levels) in <top (required)>'

The same error when using ruby:2.4.1 docker container.

apt install ffmpeg on Debian 9 brings ffmpeg version 3.2.7-1~deb9u1.

So, moving to Debian is a sort of a workaround.