I cannot convert .mp4 videos to add selectable subtitles

[XP Mai]

I want to add subtitles (in .srt) to my .mp4 without interfering any video settings like quality and resolutions. I am suggested to try out VLC media player but unfortunately it also does not work as expected.

I have followed the procedures closely but to no avail. I have tried many variations, like

• ensuring video and subtitle same file name
• tick/untick Subtitles in Profile edition
• tick/untick Overlay subtitles on video
• Tried Dump raw input then saved as .mp4

and also checked with

• MediaInfo
• Windows' Film & TV player
• VLC Media Player

to see if the subtitles are there.

Here is the video of my process adding subtitles: http://somup.com/cbQZ1gVbi6

Details:

• Windows 10 Pro
• VLC Media Player 2.2.6 Umbrella
• .mp4 1.59 GB video, .srt subtitle

[mederi]

https://forum.videolan.org/viewtopic.ph ... 41#p459859

[XP Mai]

https://forum.videolan.org/viewtopic.ph ... 41#p459859

Thanks! But I don't really understand, can you give me step-by-step instruction plzz

[mederi]

Use mp4 dedicated tool like Mp4Box. You better use some GUI version like My MP4Box GUI where you just drag&drop mp4 video file and srt subtitle file, and then simply mux them.

[XP Mai]

Use mp4 dedicated tool like Mp4Box. You better use some GUI version like My MP4Box GUI where you just drag&drop mp4 video file and srt subtitle file, and then simply mux them.

But is their final product in .mp4? It's in .mkv right?

[InTheWings]

Muxing in srt is not supported.
In fact, there's not really much support for subtitles outside of dvd ones.

[XP Mai]

Muxing in srt is not supported.
In fact, there's not really much support for subtitles outside of dvd ones.

Then how some .mp4 videos have selectable subtitles??

[mederi]

VLC cannot mux srt into mp4. Mp4 supports tx3g subtitle stream. There are smart tools that take srt and mux it into mp4 with automatic conversion in tx3g format . If you are not smart enough to use smart tools like ffmpeg, then use the recommended one the way I have already described in previous post.

[XP Mai]

If you are not smart enough to use smart tools like ffmpeg, then use the recommended one the way I have already described in previous post.

Haiss, MP4Box doesn't work either

[Lotesdelere]

Maybe L-Smash ?
https://github.com/l-smash/l-smash

Binaries for Windows are available here:
https://www.dropbox.com/sh/7jjrz5i4wcxh ... YK4da?dl=0

[XP Mai]

Or is it actually possible to embed .srt into a .mp4 without quality loss at all? I've tried like more than 4 software and none of them work as expected.