It is possible to add analog closed captions to an MP4, but it is also pointless. Browser-based players generally require sidecar files to display closed captions for the same reason.Video players in Android devices require sidecars (SRT files, mostly).That’s why iOS devices expect the standard MPEG-4 Part 17 subtitles in an MP4 file. MPEG-4 standard specifies subtitles instead of closed captions.Most mobile devices (laptops, tablets and phones) don’t have the decoder all flat screens use to display closed caption tracks.This output is useless in the real world for several reasons: For example, one cloud-based service currently on the market will automatically copy analog captions (if present in the source video) into an MP4 output file. The problem with this approach is you run the risk of making inaccurate assumptions. Other software packages and services make assumptions about closed caption workflows. You can fully specify your video closed caption workflow in the instructions you send to our system, so you have complete flexibility. strives to integrate our live closed captioning software seamlessly with your existing workflow.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |