ffmpeg failure: Could not get frame filename number 2 from pattern

[garyfoster]

I'm receiving this error when attempting to process a video. It appears that the command is missing the "vframes 1" option? When I run the ffmpeg command manually, it does work fine when I add "vframes 1". I'm using the master branch straight from github.

[image2 @ 0x7feda1824a00] Could not get frame filename number 2 from pattern '/var/folders/ys/wn_46zvs6jbgjvgnn45snf9m0000gn/T/dc5c7986daef50c1e02ab09b442ee34f20141018-34360-1kbemf620141018-34360-1615t53.jpg' (either set updatefirst or use a pattern like %03d within the filename pattern)
av_interleaved_write_frame(): Invalid argument
frame=    2 fps=0.0 q=3.6 Lsize=N/A time=00:00:00.06 bitrate=N/A
video:204kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!
Av::CommandError: error while running command ffmpeg -i "/var/folders/ys/wn_46zvs6jbgjvgnn45snf9m0000gn/T/dc5c7986daef50c1e02ab09b442ee34f20141018-34360-1kbemf6.MOV" -y "/var/folders/ys/wn_46zvs6jbgjvgnn45snf9m0000gn/T/dc5c7986daef50c1e02ab09b442ee34f20141018-34360-1kbemf620141018-34360-1615t53.jpg": Command 'ffmpeg -i "/var/folders/ys/wn_46zvs6jbgjvgnn45snf9m0000gn/T/dc5c7986daef50c1e02ab09b442ee34f20141018-34360-1kbemf6.MOV" -y "/var/folders/ys/wn_46zvs6jbgjvgnn45snf9m0000gn/T/dc5c7986daef50c1e02ab09b442ee34f20141018-34360-1kbemf620141018-34360-1615t53.jpg"' returned 1. Expected 0

[owahab]

Can you post the related model's has_attached_file line?

[garyfoster]

I used the same one from your README, just changing the attribute name:

has_attached_file :video, :styles => {
    :medium => { :geometry => "640x480", :format => 'flv' },
    :thumb => { :geometry => "100x100#", :format => 'jpg', :time => 10 }
  }, :processors => [:transcoder]

[chienhungchen]

@garyfoster I ran into the same issue. I was able to get the video to process by looking at the paperclip-ffmpeg gem that @owahab also put together I believe. Try adding this line to your development.rb

Paperclip.options[:command_path] = "/usr/local/bin/"

Also, heads up I found that installing ffmpeg from http://ffmpeg.org/download.html#build-mac didn't work for me on OSX. I had to use Homebrew.

I am however running into a image conversion issue. @owahab i'll be opening a separate issue for it.

[garyfoster]

Thanks for the input but the ffmpeg command line is indeed running fine, it is not having trouble locating the binary. I also installed via homebrew. The issue is that there is a missing argument not sent to the ffmpeg command to indicate that only 1 vframe is desired. Perhaps the version of ffmpeg I'm using has different behavior, I'm using version 2.4.2. @owahab please reply with the version you tested with if you want me to pursue this angle.

[owahab]

@garyfoster I can confirm the issue. The gem currently doesn't generate screenshots properly.

Can you please use paperclip-ffmpeg until I get this fixed in av gem, or if you have time and willing to help, can you fork and patch av to add the appropriate logic to handle screenshots?

[garyfoster]

@owahab I had tried the other gem already and in that instance, it did run without exception but the resulting jpg was an empty file.

I did take a look at the av gem and perhaps we can patch it. I have a team member assigned to this but our schedule is pretty hectic, not sure if we will fix before you can. Thanks for you response and your effort here.

[NathanielWroblewski]

Any updates on this?

[owahab]

@NathanielWroblewski nope, pull requests are very welcome.

[owahab]

Please check with latest HEAD

[aestrro]

@owahab are you saying that the thumbnail issue has been addressed?

[aestrro]

@owahab it actually does work for me, I tested with mp4 on OSX.

[owahab]

Good. Closing this.

[wsdg1992]

are you ok?