Tvheadend

Add some info for OS and TVH version.

Sorry, added. I was originally using 4.2-stable but that doesn't have any codec profiles at all so I'm using the latest version.

Do you try with Parameters: of h264 video codec profile?

Yes, I already stated that: the "parameters" box is for libx264 parameters, not ffmpeg parameters. libx264 doesn't do deinterlacing itself.

Then you must use pipe ffmpeg transcoding, when client can not do de-interlace.

OK thanks, are there any guides for how to set that up for Tvheadend? I can see this how-to guide:

https://tvheadend.org/projects/tvheadend/wiki/Custom_MPEG-TS_Input

but I don't understand where to set this up in the GUI?

Use MPTEG-TS Spawn profile.

Thanks, I've set up a new MPEG-TS Spawn profile and used an ffmpeg string that works for a local file on the machine. However, I cannot select that new profile in TVHClient (Android app). Any ideas?

Recreate connection
With app is this?

restart on error
very useful

As I said, the app is TVHClient, as listed here:

https://tvheadend.org/projects/tvheadend/wiki/Clients

I tried recreating the connection but it still only sees those 5 profiles.

Try with dream Player for TVHeadend

at less its free

OK I've tried with Dream Player for TVHeadend and although it can see my new profile, no videos play when using it. I've confirmed the ffmpeg command works from the command line so I'm guessing something to do with the pipe or mime type is wrong? The error in the log is:

[ ERROR]:pass: Unable to start pipe 'pipe:///usr/bin/ffmpeg -loglevel fatal -threads 4 -i INPUTLINK -codec:v libx264 -b:v 2904k -vf "yadif=1:-1:1, scale=1280:720" -profile:v baseline -preset:v faster -coder 1 -tune zerolatency -mbd rd -codec:a aac -b:a 96k -ac 2 -strict experimental -async 1 -sn -fflags +genpts -metadata service_provider=STRING -metadata service_name=STRING -f mpegts pipe:1' (wrong executable?)

The profile settings are the same as in the screenshot from my previous post. Even if I change the command line to something really basic it produces the same error:

[ ERROR]:pass: Unable to start pipe 'pipe:///usr/bin/ffmpeg -loglevel fatal -i INPUTLINK -vcodec libx264 -acodec aac -strict -2 pipe:1' (wrong executable?)

I've now tried to use the example from https://tvheadend.org/projects/tvheadend/wiki/Custom_MPEG-TS_Input verbatim:

pipe:///usr/bin/ffmpeg -loglevel fatal -i INPUTLINK -vcodec libx264 -acodec aac -strict -2 -mbd rd -copyinkf -flags +ilme+ildct -fflags +genpts -metadata service_provider=STRING -metadata service_name=STRING -f mpegts -tune zerolatency pipe:1

and it still just says "Unable to start pipe". Running /usr/bin/ffmpeg from the command line as the "hts" user works fine. Removing the "-loglevel fatal" switch doesn't provide any more information either.

Is the pipe feature just broken in 4.3-1292?

John Blumpy wrote:

I've now tried to use the example from https://tvheadend.org/projects/tvheadend/wiki/Custom_MPEG-TS_Input verbatim:

pipe:///usr/bin/ffmpeg -loglevel fatal -i INPUTLINK -vcodec libx264 -acodec aac -strict -2 -mbd rd -copyinkf -flags +ilme+ildct -fflags +genpts -metadata service_provider=STRING -metadata service_name=STRING -f mpegts -tune zerolatency pipe:1

and it still just says "Unable to start pipe". Running /usr/bin/ffmpeg from the command line as the "hts" user works fine. Removing the "-loglevel fatal" switch doesn't provide any more information either.

Is the pipe feature just broken in 4.3-1292?

Same here

"pass: Unable to start pipe 'pipe:///usr/bin/ffmpeg"

Using latest unstable version 1496

Rotarum Rotarum wrote:

John Blumpy wrote:

I've now tried to use the example from https://tvheadend.org/projects/tvheadend/wiki/Custom_MPEG-TS_Input verbatim:

pipe:///usr/bin/ffmpeg -loglevel fatal -i INPUTLINK -vcodec libx264 -acodec aac -strict -2 -mbd rd -copyinkf -flags +ilme+ildct -fflags +genpts -metadata service_provider=STRING -metadata service_name=STRING -f mpegts -tune zerolatency pipe:1

and it still just says "Unable to start pipe". Running /usr/bin/ffmpeg from the command line as the "hts" user works fine. Removing the "-loglevel fatal" switch doesn't provide any more information either.

Is the pipe feature just broken in 4.3-1292?

Same here

"pass: Unable to start pipe 'pipe:///usr/bin/ffmpeg"

Using latest unstable version 1496

FYI I figured this out: you have to remove the "pipe://" part. I haven't been able to test if the transcoding works as expected yet though since I can't find a client that supports HTTP streams from Tvheadend.

OMG i've done it

First he was saying:

"spawn: Output #0, mpegts, to 'pipe:0':

spawn: Output file #0 does not contain any stream"

So i have replaced a new input like this:

ffmpeg -i pipe:0

and at the end of the line:

pipe:1

working now

Rotarum Rotarum wrote:

OMG i've done it

First he was saying:

"spawn: Output #0, mpegts, to 'pipe:0':

spawn: Output file #0 does not contain any stream"

So i have replaced a new input like this:

ffmpeg -i pipe:0

and at the end of the line:

pipe:1

working now

Thanks for this tip! The examples on the wiki page use "INPUTLINK" as the input stream but you're right, it needs to be "pass:0".

I'm now trying to figure out how to choose a particular audio stream to pass to the input...

Normally like this:

-map 0:0 -map 0:1

First map to pickup video 0:0 and second map for audiostream 0:1 for example

Good luck

Rotarum Rotarum wrote:

Normally like this:

-map 0:0 -map 0:1

First map to pickup video 0:0 and second map for audiostream 0:1 for example

Good luck

Yep I'll give that a try. I am not sure if it'll work though because I have a feeling the audio streams for HD channels are in the opposite order compared to SD channels (e.g. SD: 0 = normal, 1 = narration, HD: 0 = narration, 1 = normal).

John Blumpy wrote:

Rotarum Rotarum wrote:

Normally like this:

-map 0:0 -map 0:1

First map to pickup video 0:0 and second map for audiostream 0:1 for example

Good luck

Yep I'll give that a try. I am not sure if it'll work though because I have a feeling the audio streams for HD channels are in the opposite order compared to SD channels (e.g. SD: 0 = normal, 1 = narration, HD: 0 = narration, 1 = normal).

I think I'm slightly misunderstanding how this works. If I use:

-map 0

-map 0:0 -map 0:1

-map 0:0 -map 0:2

Any ideas?

use ffprobe to analise stream
then
https://trac.ffmpeg.org/wiki/Map
Example 4

saen acro wrote:

use ffprobe to analise stream
then
https://trac.ffmpeg.org/wiki/Map
Example 4

Thanks. As I suspected, HD and SD channels use different stream IDs. For audio I need to use stream ID 4 for HD channels and stream ID 2 for SD channels. What's the best way to deal with this?

Use build-in stream filter in TVH

How can i create a spawn profile? I have TVH 4.2.8-36 and i cant find these profiles to select it. I simply want to pre- deinterlace, no transcode

How can i create a spawn profile? I have TVH 4.2.8-36 and i cant find these profiles to select it. I simply want to pre- deinterlace, no transcode