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VOD Pipeline error messages

Known Error Responses

The following table indicates known error responses from the Magine VOD Transcoder, and possible solutions for the errors encountered.

Video

MessageIssueSolution
Unsuppported codec ProRes for container mpeg-4.The video format isn't supportedUpload the file in a supported video format
Frame rate 20.0 must be one of {50, 23.976, 23.98, 24, 25, 59.94, 60, 29.97, 30}.Video has an incorrect framerate.Update the frame rate of the video file and upload it again.

Audio

MessageIssueSolution
Language None not recognized ISO639-2 code.The Audio Tracks in the file, do not have a Language Code Set or the Language code is not in the ISO639-2 list or format.The input media file needs to be updated with an external tool, to correct the missing or incorrect language tracks. Each audio track needs this to be set. MP4BOX can be used for this purpose.
Audio (channels, language) must be unique, found duplicate (1, 'eng').The file has 2 audio tracks with the same language codeRemove one audio track or change the language code of one the audio tracks.
Channel count 1 must be one of {2, 6}.The container defining the audio track is set incorrectlyUpdate the container information and include all audio tracks in it.
Sampling rate 44100 must be one of {48000}.The sampling rate is incorrect.Update the sampling rate of the audio track to match the specifications.

Subtitles

MessageIssueSolution
Container ass must be one of {'mpeg-4', 'subrip', 'quicktime'}.The subtitle file includes unsupported formats and is not recognised as srt file.The subtitle file needs to be updated and cleaned of unsupported formats. SRT cleaner can be used for that.
Could not find valid ISO639-2 code for subtitle fileThe language code in the file name is incorrect.Update the file name with the correct ISO639-2 language code.
Container ttml must be one of {'quicktime', 'mpeg-4', 'subrip'}.The subtitle file includes unsupported formats and is not recognised as srt file.The subtitle file needs to be updated and cleaned of unsupported formats. SRT cleaner can be used for that.

Useful Tools

  • ISO639-2 - List with language codes

  • MP4BOX - Tool that can be used to check and modify file metadata, and manipulate media containers, video and audio tracks.

  • MediaInfo - Used to display Media Container Data (Codecs, Audio Tracks, Containers etc)

  • SRT cleaner - Used to remove formatting styles and HTML tags from subtitle files