The VideoLAN Forums

Hi there,

some of my subtitles tracks in my mp4 are "refused to decode as non validated"

( here: modules/codec/avcodec/subtitle.c: InitSubtitleDec() )

How can I write such tracks to a new file on disk?

You might need another decoder, what is your subtitle codec ?

they are refused, because they are nonfragmented subtitles in fragmented mp4 file (https://forum.videolan.org/viewtopic.php?f=32&t=149836#p492673)