Universal Media Server | Forum

Hi to all!

I have encountered a strange behavior with some video files, and there is more and more of things like this, so I assume this could be something in encoding of the files, but I can not figure out how to solve this inside UMS. This is happening for a while, and I think it is not in relationship with the version of UMS, because it is updated more times when I start to have this and I have tried to go back to earlier versions and have exactly the same problem.

So the main thing is that I use no transcoding when the video is playable on my Panasonic ST50 plasma. And there is no problem.

The problems start if I have to do a transcode because of external subtitles for example, the same video thats working with no transcode I try to play with FFMPEG or MEncoder and now after about 30-40 seconds the audio is muting, the video contiues to play for some time, then I see something like a jump in cutting, and I have audio and video again but not in sync for about 30-40 seconds again, then a jump and so on... Almost the same in FFMP{EG and Mencoder, the differenc may be in how many seconds the synced tile is played and then starts te mutin/unsync problem.

The only transoder that seems to work is VLC, but there are another two problems that I have with VLC, with this one the Video size ratio is always screwed (whatever the source is I have something streched on TV) and the other more irritating thing with VLC is that if I have 10 subtitles inside the container, or have any external subtitles the VLC is showing ALL of them in the same time, and I can not choose witch one to be readable.

In the list before I start to play I can choose witch video I would like to play, to select audio and title combination, but whatever I chosse it will play all the subtitles simultaneously over the screen.

The only workaround that I have found is to cut off all subtitles that are inside the container, to add the one I have externally inside the conteiner with a third party tool, MKVToolnix GUI and to try to play that video with only one subtitle inside the container with NO TRANSCODING, but I can do this only with supported formats from my TV, or to watch these videos with VLC stretched.

But it is pain when I start to watch a mopvie or a series and discover that I have problems with Audi sync and have convert the movie or all the episodes to be playable with NO TRANSCODE...

I would like to be able to play dem with UMS and transcoding, thats more comfortable.

Thanks in advance for your help!

I have EXACTLY the same problems (audio muting with ffmpeg, double subtitles with VLC) with a Panasonic VT50, except for aspect ratio, that is perfect in VLC. The issue of all subtitles showing in the same time in VLC drives me nuts. I tried everithing, but no solution. The only thing to do is use makemkv or MKVtoolnix and create a simple file mkv with only one sub.

I sometimes get that unplayable error on my PS4 on some videos that need to be transcoded. I have found that it happens on videos that have a lot of subtitles and it takes FFmpeg a little longer to parse all those before starting to transcode. This delay will make the PS4 time out and give an error. I have to do the same thing on these videos with clicking the video and wait a few seconds, stopping it and play again.

I don't know if this is a problem with UMS or FFmpeg and what can be done to fix it, it may have always been a problem but I have found that it happens more these days but may be due to videos having more subtitles in them now.

I have heard a few people mention that all subtitles get transcoded into the stream at the same time and I have seen only seen it happen once a few versions ago when I tried the web player, but have not seen it happen again. If you can easily repeat this then could you post logs so I see what is happening.