The VideoLAN Forums

When i play a MP4 video with AAC audio VLC says: [00000375] main decoder error: no suitable decoder module for fourcc `mp4a'. VLC probably does not support this sound or video format. If i open the file with amarok i can hear the audio perfectly and in Windows with the same version of VLC and the sa...

I used MP4BOX to Mux with YAMB GUI or meGUI tool MP4Muxer, wich is another MP4Box GUI. To edit the TTEXT file i used the Windows Notepad and saved the file as UTF-8.

Aparently the VideoLan Media Player isn't able to render the empty text chains ("") of a TextSample tag in a TTEXT subtitle muxed into a MP4 container. This empty chains are used to clean the last shown subtitle at the ending time in this way: <TextSample sampleTime=" ending time &quo...

I have the same problem in two MP4 files, one with DIVX video and other with H.264. With VOBSUB subtitles this don't happen. I used MP4BOX to extract the subtitles track in SRT and TTEXT types and saw that in SRT the ending times are present but in TTEXT they are implemented as tags with an empty te...