Remuxing MKV to TS

[phunqe]

I'm trying to figure out if it's possible to use VLC for MKV to TS remuxing with the MKV containing a h264 video and AC3 or DTS audio.

Basically what I need is to change the container from MKV to TS to be able to play the files on the new TVIX 4100/5100 media player. It supports h264 fully, it's just the mkv container that it doesn't support.

I've tried to Stream/Save the MKV into a TS, trying out different options (without transcoding), but I always end up with a ts file with the audio but no video. The file size match however (i.e the ts file is basically the same size as the mkv file).

Could I get a hint on how to properly do this, if possible?

Thanks in advance.

[Jean-Baptiste Kempf]

Paste your command line.

[phunqe]

Thanks for the quick reply.

I'm not using the command line directly, but the MRL is:

:sout=#duplicate{dst=std{access=file,mux=ts,dst="test.ts"}}

also tried with "Select all elementary streams":

:sout=#duplicate{dst=std{access=file,mux=ts,dst="test.ts"}} :sout-all

[Jean-Baptiste Kempf]

Thanks for the quick reply.

I'm not using the command line directly, but the MRL is:

:sout=#duplicate{dst=std{access=file,mux=ts,dst="test.ts"}}

also tried with "Select all elementary streams":

:sout=#duplicate{dst=std{access=file,mux=ts,dst="test.ts"}} :sout-all

and if you transcode ?

[phunqe]

Even if my purpose isn't to transcode, I did try this and then there is video. However the resulting video is always very blocky and there's a lot of color bleeding (some parts are even solid colors, like green).

I tried different variants, one was for example:

Code: Select all

:sout=#transcode{vcodec=mp2v,vb=3072,scale=1,acodec=a52,ab=512,channels=6}:duplicate{dst=std{access=file,mux=ts,dst="test.ts"}}

I did also try setting fps= manually just in case, no difference.

[phunqe]

I realize now that the video bitrate when transcoding was quite low, since it was a 720p resolution video. That might have counted for the blockyness, but not for the color issues.

In any case, any ideas on why a direct remux does not work?

[DJ]

@ j-b: As a straight copy (MKV to TS) I get this error

packetizer_h264 warning: waiting for SPS/PPS

This would be a MPEG TS error for h.264

The rest of the reporting seems correct.

I thought this was fixed. The DJ did it, as I recall! Deja Vu, I know I have been here before.

[Jean-Baptiste Kempf]

@DJ: Well, I have not read and understand the packetizers things in VLC yet.

What is the output of vlc -vvv, btw ?

[DJ]

You want me to do it again? I just cleaned up and put everything away! Ask The DJ, perhaps he will remember as it was during the tests for 0.8.6

[phunqe]

Should I do something more here, like submitting some logs?

Would really be cool if this could work

[Jean-Baptiste Kempf]

Nope that is fine. I know that some changes were made on the trunk version too.

[phunqe]

Should I try with a trunk version or are you planning on changing things further?

[phunqe]

I tried to do this with today's (24th of may) trunk, but I'm having problems even saving the file.

Select Convert/Save:


Select the file I want to convert and then Convert in the Convert/Save drop down box:


Tick the file checkbox and then blick on Browse. Here when I enter a filename to save to I get the following:


I tried to enter a filename directly (without browsing), but nothing really happens when I press Convert/Save in the second image. It just starts to play the file.

Thanks in advance.

[vostok4]

Phunge have you gotten anywhere with this? I'm looking to get this done as well for my set top but there is no info anywhere on a working system, unless I transcode the AC3 audio to AAC and then remux it.... but that I hope to skip.

[Jean-Baptiste Kempf]

ok. Sorry, I haven't seen that thread. The new GUI transcoding is not ready.
Use the old GUI, an old VLC, or the command line.

[vostok4]

j-b, so we need the newest trunk to do this transcoding? Or how old of a version do we need to try? CLI would be ideal for me... but I am not very familiar with the VLC architecture.

[Jean-Baptiste Kempf]

Well, you shouldn't need a new one, but well, this is a bit unsure.
However you can launch the old GUI with the nighlties with the -Iwx swicth

[vostok4]

Interesting.

J-B, I tried the latest nightly with the old GUI, and it indeed remuxed straight from MKV but it broke the video, I have audio but no video, any way to rectify this?

[Jean-Baptiste Kempf]

What is the video codec used ?

[vostok4]

h264 (x264)

[Jean-Baptiste Kempf]

Well, what are the messages ?

[vostok4]

This is the call line I'm using with latest VLC nightly + -Iwx switch for the old GUI:

:sout=#duplicate{dst=std{access=file,mux=ts,dst="c:\ooo.ts"}} :sout-all

It encodes to a video ooo.ts, which has audio, but no video, however it does have a source height, width defined, FPS defined etc, but nothing is rendered. It's just black.. is there a way to find out how to fix a TS file or edit a TS file?

[vostok4]

It also recognizes that the video codec in the .ts file is H264... but again, no video?

[DJ]

https://trac.videolan.org/vlc/ticket/1217

[vostok4]

Excellent! Thanks DJ! I'll keep an eye on that... this will make my life so much easier if it works!