27 replies to this topic

[buami]

Hello dear all,
i just registered to your forum but was already reading your topics for some time.

So first I'd like to say hello to everybody. I am C / C++ programer for ~20 years and one of my hobbies is to create sw around STB's and E2 images.

So comes that I have a question to you (if I am on the wrong place or it is simply not supported just let me know)

 

I built an SH4 E2 image for my UFS913 with gstreamer 0.10 - everything is fine.

Next I upgraded gstreamer to 1.5.2 and gst-plugins-dvbmediasink to "christophecvr/gstreamer1.0-plugin-subsink.git"

Image is working, BUT:

when I play a http stream (mp4) the video is stuttering (for my tests I killed e2 and simply ran gst-launch-1.0 playbin ...).

What I did so far:

- downloading the video (to exclude inet/bandwidth problems): still stuttering

- separating audio and video (both as mp4): video is running fine, audio is stuttering

- converted aac audio to mp3 and merged again with video: running fine

- gstreamer has no aac plugin compiled in - decoding is done via gstdvbaudiosink (already checked by adding some debug infos to gstdvbaudiosink.c)

 

I built dvbmediasink with the following options: --with-wma --with-wmv --with-pcm --with-eac3 --with-dtsdownmix --with-mpeg4v2 --with-gstversion=1.0

 

There are so many discussions and patches out there - I am a little lost.

 

Maybe someone knows the problem and can point me to de right direction?

 

Thanks and best greetings,

buami

 

 

[MastaG]

I'd like to try as well, but unfortunately my spark7162 (GM Spark One) died on me.

I'll share some info.

I'm using openpli-oe-core gst1 branch since I'd like to be as close to original PLi as possible.

However I've switched the Enigma2 source to taapat's version:

 

Here's my enigma2.bbappend:

FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"

ENIGMA2_BRANCH ?= "master"
GITHUB_URI ?= "git://github.com"

SRC_URI = "${@base_contains("TARGET_ARCH", "sh4", "git://bitbucket.org/Taapat/enigma2-pli-arp-taapat.git;protocol=https", "${GITHUB_URI}/OpenPLi/${BPN}.git;branch=${ENIGMA2_BRANCH}", d)}"

SRC_URI_append_sh4 = " file://sparkfixes.patch"
# Pause improvements from mx3L
SRC_URI += " file://0001-servicemp3-improve-unpause-performance-in-gstreamer1.patch"

Taapat's branch needs some fixes to build within the openpli-oe-core enviroment because the python setup is different and we use an older version of giflib.

Please see the attached sparkfixes.patch.

 

Also christophecvr's multibox dvbmediasink needs a patch according to OE-A.

I've attached this as well.

 

All other related recipes (meta-fulan, gcc-4.8, libav patches etc..) I've included from OE-A as well.

 

The flash chip in my spark receiver is damaged, no matter how many times I attempt to do a flash_eraseall, the mtd6 partition will always corrupt due to ecc failures when doing a nandtest

I'm looking into booting from USB atm.

Attached Files

•  sparkfixes.patch   5.26KB   17 downloads
•  0001-dvbmediasink_sh4_fix.patch   7.01KB   14 downloads

Edited by MastaG, 8 September 2015 - 10:34.

[buami]

thanks for providing your experience.

0001-dvbmediasink_sh4_fix.patch was already part of my build chain (otherwise no sound) - but this does not solve the stuttering...

[mx3L]

Hi,

If I may I would suggest you to compare pipelines gstreamer1.0 vs gstreamer0.10 when playing AAC (GST_DUMP_DOT_DIR, check them in xdot) and compare set_caps, render and push_buffer functions at least what's related to AAC between these two versions.

[malakudi]

Topic subject should report that this thread is about unsupported (from OpenPLi) STi boxes.

 

Apart from that, maybe the issue is code that converts AAC to AC3 in software? It has been added in some of those custom builds.

[buami]

I don't have software for aac to ac3 conversion on my system.

I use gstreamer, gst-plugins-base/good/bad/ugly/dvbmediasink

only patch I use:  0001-dvbmediasink_sh4_fix.patch (as attached in post#2)

[gorski]

MastaG, could you, please, come/reg at PowerBoard and talk to Delfi and Graugans - they may be able to help you save your STi 7162. If anyone can, they can, esp. Delfi, who helped me with a similar issue and who had to study it to save his own, also... He has some contacts with the manufacturers, too...

 

Secondly, buami, you should look into samsamsam's posts re. ffmpeg and SH4 recs with not much memory, if you haven't already. Then, stuttering videos might be a thing of the past, we hope....

 

I would also like to invite you to PowerBoard, since those recs are supported there, broadly speaking - and maybe...

 

Good luck to you all!!!

[MastaG]

I know we shouldn't mention unsupported receivers. However I got my spark receiver booting from USB (the init=/bin/devinit) was missing.
So to sum up
- Taapat's PLi fork with a minor patch from the first post
- Christophecvr's multibox dvbmediasink with the sh4 patch
- meta-fulan and some oe-core patches from oe-alliance (gcc 4.8 etc)

Iptv and Streaming is working perfectly fine here.

I only have a issue with oscam and dvbapi, I hope Taapat is willing to give me a hand on that one.

@gorski thanks I'll check it out.

[santa]

Do you have the np_pti and do you use duckbox as boxtype?

[MastaG]

I ripped it from openatv 5.1 and now it's working :-)

It seems the one that is compiled by default doesn't support descrambling.

However I'm using "dreambox" for boxtype.

 

I did some quick tests, playing various internet streams using IPTV Player and movies from my usb stick and all is working fine.

Also multibitrate HLS is playing very well.

 

I have only one small issue left with the default PLi HD skin.

When I enter the channel list it will resize the TV output to a small window.

When I zap to a channel it sometimes doesn't resize back to full screen.

This can be fixed by using a different skin which doesn't feature the small preview.

 

So at the end of the day everything is working now.

gstreamer 1.5.90 on my spark receiver and it's as close to the original PLi as possible.

Happy times for me !

[gorski]

Send me the link, please, I'll be happy to test it. My Alien2 is only supporting my monitor at the moment....

 

The resizing of the window is the problem we discovered on all of the images, for whatever the reason... FIxed by ^ or V buttons and OK, if memory serves...

 

We need Graugans and Delfi with some free time and will to investigate... Maybe AR-P guys would lend a hand, too?

 

You know, I think PB is the best image for it, if all would work correctly, from the best Device Manager onwards, so it can be set up really well etc. etc.

 

Tap's image is ffmpeg based?

 

Good luck!

[santa]

Sh4 boxes needs duckbox as boxtyp, with dreambox you'll never decrypt 2 programms the same time.

[gorski]

I have not tried but with Graugans' Yocto layer - maybe...

[buami]

@MastaG: are you using any other gstreamer-related patch except the sh4 patch?

could you propably share your gstreamer.mk?

Thx

[MastaG]

Yes, tonight or tomorrow I'll share everything.

[buami]

great thx

me too - let's share some experience

[gorski]

Btw, lots of Graugans' inventions are in OE-A/OpenATV GITs. I am sure you know it already but... just in case, if somebody doesn't know and they may want to learn from it/use it...

[gorski]

Oh, one more thing I forgot to mention: many new things are in the non-public, testing area... just so you know, in case you were wondering...

 

One must be VIP or Beta tester or so, to get to those threads, sorry...

[buami]

Yes, tonight or tomorrow I'll share everything.

may I ask again?

[gorski]

And I'll jump on the bandwagon...