Tvheadend transcoding

goo · 30 May 2019 00:21

Hi,
I am trying to use stream profiles to do some live tv transcoding on a KI pro running CE 9.0.2.
Unfortunately video transcoding does not work:

2019-05-29 17:53:05.480 transcode: 0012: **Unable to find libx264 encoder**
2019-05-29 17:53:05.480 transcode: 0012: 1:H264 ==> Passthrough
2019-05-29 17:53:05.481 transcode: 0012: 2:AC3 ==> AAC (aac)

2019-05-29 17:53:05.480 transcode: 0012: **Unable to find libvpx encoder**
2019-05-29 17:53:05.480 transcode: 0012: 1:H264 ==> Passthrough
2019-05-29 17:53:05.481 transcode: 0012: 2:AC3 ==> AAC (aac)

I thought to get at least libx264 transcoding working considering that libx264 is listed as an enabled codec in the “About” page of the frontend.

Any clues?

relkai · 29 May 2019 17:31

The addon apparently isn’t compiled with transcoding support, but I guess your KI Pro is by far too weak anyway. I’m using a TVH server with transcoding on an i7 server, and even there the CPU usage is very high.

goo · 29 May 2019 21:54

Of course you are right, maybe I could try to transcode on a PC class tvheadend server configured as a Satip client of the KI pro. Do you think it will work?

relkai · 29 May 2019 22:49

That could work, because your KI Pro just needs to transfer the DVB stream in this constellation.

TheCoolest · 29 May 2019 23:02

I think the more important question is why are you only transcoding the audio?
I think any PC can handle audio transcoding, possibly even the box could, given software support for it.

goo · 30 May 2019 11:06

I would like to do video transcoding but coreelec’s tvheadend apparently lacks libvpx and libx264 encoder support, that is why video falls back to passthrough.
Audio transcoding works flawlessly, though.

TheCoolest · 30 May 2019 18:44

I see, well then you can try using a PC. But why would you want to transcode H264? I don’t think there’s one device that doesn’t support this format today.

relkai · 30 May 2019 23:07

Personally I understand the need for transcoding.
For example if you want to watch live tv “on the go” on your smartphone, then you don’t want to stream HD channels with their original bit rate, but transcode it to a much lower one.

TheCoolest · 30 May 2019 23:11

I see, ok

goo · 31 May 2019 08:03

Indeed, this is exactly the reason why I went to try transcoding on coreelec.