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playback of problem transport stream

flaarn — Sat, 17 May 2008 16:10:47 +0000

I have a transport stream from itv hd which has the stream
information bit set to private.
Elementary Stream PID 3401 (0x0d49) ISO/IEC 13818-1 PES packets containing private data
If you take a look at bob0r's h264 samples and locate the itv hd one you will see what I mean,(this is my own sample though) to get around this minor issue I've remuxed it, I believe there is a change in the bitstream during the recording, I show no errors in the transport stream either original or remuxed, but most decoders fail with this stream at the problem point. results below

divx h264 decoder beta 1 - decoder hard crash (closes application)
mainconcept- skips frames where change in bitstream occurs
cyberlink - decoder hard crash (closes application)
coreavc 1.6.5 - displays affected segment but does not decode correctly (pc1)
coreavc 1.7.0 - displays affected segment but does not decode correctly (pc2)

If you would like a sample of the affected part of the stream contact me, and I'll make arrangements for you to receive it.

Decoder does not de-interlace

DigitAl56K — Sat, 17 May 2008 02:51:55 +0000

This decoder does not deinterlace. It decodes interlaced material and passes it to the renderer. It is possible to instruct certain renderers to deinterlace and also to perform software deinterlacing. We'll consider those features later.

I noticed this as well. I

bnz — Fri, 16 May 2008 21:33:07 +0000

I noticed this as well. I don't think the decoder currently does interpolated deinterlacing though.

Premiere HD Sample File, and Deinterlacer not working

sunnyfunny — Fri, 16 May 2008 19:36:26 +0000

Ok, her you have some little Sample file i have recorded from Premiere HD Germany. Deinterlacing doesn't work with this File.

http://rapidshare.com/files/115387837/sample.ts

TS-records+mpayer+DivX H.264=fine

deekey777 — Fri, 16 May 2008 11:13:59 +0000

I was able to play my ts records (eg Planet Earth in 720p50, recorded on EinsFestival HD during HD showcase) with mplayer, no problems.
DVBViewer crashes, when I switch to ORF HD (there is no other 720p channel on Astra 19°&DVB-S), DVBDream can't use DivX H.264.

Yes, i always use haali

bnz — Fri, 16 May 2008 07:58:09 +0000

Yes, i always use haali splitter though and the sample works fine with coreavc. Here is the sample for anyone interested - i simply truncated the file since only the beginning is making the problems anyway i guess.

https://bnz.homeftp.org:81/public/h264-recording-crash.ts

further information

CiNcH — Fri, 16 May 2008 07:49:39 +0000

Hi DigitAl56K,

the source of the problem seems to be the communication between DVBViewer DVBSource filter (demuxer) and the decoder. It may already be solved if you get CyberLink and Elecard working...

Otherwise... do you have access to DVBViewer stuff? The TSPlayer is a small TS file playback utility (with customizable H.264 decoder filter) which also uses the DVBSource filter. Some PAFF and MBAFF TS samples are provided by b0b0r.

Also interesting may be the fact that DVBSource by its nature is a push filter (not pull which is mostly used for file playback).

TSSplitter

CiNcH — Fri, 16 May 2008 07:45:40 +0000

Try TSSplitter. You can make little peaces of your sample with it. It leaves the streams untouched.

http://www.ffprojects.net/tssplitter/tssplitter.htm

Maybe you should first try to play it with Haali Media Splitter. It may be that the splitter/demuxer used in ZP has problems with your sample...

DVBViewer crashes for me too

bnz — Fri, 16 May 2008 07:40:58 +0000

DVBViewer crashes for me too on H264 channels. However, i was able to record a h264 transport stream that also crashes my playback application (Zoom Player) when i am using the divx h264 decoder - it works fine with coreavc. Maybe i am able to cut this crashing transport stream to a smaller downloadable one that helps with the debugging.

edit: i just tried cutting the crashing ts to a smaller file size with h264 cutter. after cutting, it doesn't crash anymore though. I'll try a few other things to make it smaller.

4:2:2 Encoder?

dioneo — Fri, 16 May 2008 07:06:26 +0000

Usually all h.264 encoders encode video format 4:2:0. Developers h.264 say that this is enough, on the other hand uses 4:4:4 digital cinema. Are there examples of free 4:2:2, which may lose the new Divx decoder?

Good info!

DigitAl56K — Fri, 16 May 2008 06:41:19 +0000

Thanks for the info, I'll check that out tomorrow!

CyberLink- and Elecard-Demuxers

CiNcH — Fri, 16 May 2008 06:18:46 +0000

See, that the DVBViewer crash issue has already been reported here...

Guess you know it, but I am posting it anyway... the DivX H.264 decoder filter does not connect to CyberLink (PDVD7) and Elecard demuxers.

Up until now I could only get a working graph with Haali.

no GB-PVR

ilovejedd — Fri, 16 May 2008 02:30:08 +0000

Tested some videos and it works fine in WMP so far.

I couldn't get GB-PVR to recognize it, though. It might be an issue with the program since it doesn't recognize ffdshow either. I'll try asking in their forums.

PPC based comercial AVC decoders

popper — Fri, 16 May 2008 00:08:26 +0000

the main part im most interested in is are you going to take 10 minutes to compile and make available a PowerPC/Altivec version for the PPC based PS3 linux (current Gentoo and Ubuntu binarys), and even More so the PPC based Genesi Efika (ask bill for a board so you can test it here)
http://www.powerdeveloper.org/

a x86 Slax http://www.slax.org/forum.php module and FreeBSD would be nice too, if you can find the time for a one off compile now and then!

:wave: ,apparently BetaBoy cant find the time to compile,tweek his product for the (powerPC)PPC/Altivec evolving (mobile) markets at this time so perhaps you can fill that space?

also can your beta AVC decode codebase be programed in to todays FPGA PPC based chipsets and SOC's ?

do you allow for this ability in the current codebase?

http://www.cableforum.co.uk/board/12/33628733-virgin-media-phorm-webwise-adverts-updated.html

On DVBViewer

DigitAl56K — Thu, 15 May 2008 20:30:00 +0000

We've had several reports of problems with DVBViewer, I'll get a box set up here at DivX so that we can track down the issue.

We're currently working on optimizing the software decoder and rounding out its feature set, but I personally am also excited by the prospect of GPU acceleration and we're currently discussing it amongst the team ;)

First Impression: Nice, but

CHfish — Thu, 15 May 2008 20:26:15 +0000

I just started using the Decoder and I was positively suprised how good it does play all movies in GraphEdit - but as soon as I tried to use DVBviewer (my TV-watching software) I got a bad suprise. It crashes on every HD (h264) channel I recieve as soon as DivX h264 is chosen for h264 playback.
But the decoder is able to play the transport streams I've recorded: STRANGE!
I've no idea whether the problem is a DVBviewer or DiVX related I only know that DVBviewer works fine with CoreAVC (has some issues with some channels but even with the transport streams) and Cyberlink H264 decoder.
The biggest thing I'm wondering about is whether there will be any gpu-based acceleration?

CHfish