This topic provides details on the Zencoder API error: NoMediaError.
The input file is not an audio or video file. It could be a PDF, an image, an .exe, or something else, but it does not appear to be a video or a sound file. It could also be a DVD menu/navigation file that contains no content.
This error can also be raised if the clip start/length is outside the duration of the file.
If start_clip or clip_length options were set on the job, the output may be outside the duration of the source file. Change the options to be within the duration of the source file on a new job.