MKVToolNix GUI not importing subtitles from MP4...

[syrist]

Hey, I have some MP4 files that contain subtitle tracks. When I open these MP4 files in MKVToolNix GUI... it's not bringing in the subtitle tracks.

I used MediaInfo on the MP4 file and confirmed they're standard subtitle tracks:

Text
ID                                       : 3
Format                                   : Timed Text
Muxing mode                              : sbtl
Codec ID                                 : tx3g
Duration                                 : 1 h 11 min
Bit rate mode                            : Variable
Bit rate                                 : 211 b/s
Stream size                              : 111 KiB (0%)
Language                                 : English
Default                                  : Yes
Forced                                   : No
Alternate group                          : 3
Encoded date                             : UTC 2016-08-25 07:43:33
Tagged date                              : UTC 2016-08-25 07:43:33
Menus                                    : 4

Is this a bug?

-Pete

[netmask56]

Try extracting the subtitles first using a suitable mp4 program. Then add that file along with the MP4 video file?

[syrist]

Hi, thanks... I was hoping to avoid this step since I wanted to automate everything in a batch file.

[tugshank]

ffmpeg -i "input.mp4" -map 0:s -scodec srt "output.srt"

oops... missed the part you don't want to extract subs first.

[teodz1984]

I don't think MKVToolkit has ever been friendly with Timed Text subs..
You have to manually extract them and convert them to Srt or SSA

[syrist]

I guess I have no choice but to manually extract them first. I didn't realize mkvmerge had issues with timed text subs.

Thanks for the replies...

-Pete