forums.ps2dev.org

toker# · Joined: 21 Jan 2006 Posts: 27

Hello All

Is anyone getting audio sync issues?

When I encode my movies from DVD Source, PMP Muxer 1.02 log show that the video / audio is 0.100 seconds different etc....
0.1 / 0.2 and 0.3 doesnt affect the playback on the PSP but when 0.4 or above the movie goes out of sync towards the end. I have not change the framerate.

I have used ...
VirtualDub to encoded the video / Besweet to encode audio.
AVI2PMP
3GP Convertor

I am doing something wrong?

@Jonny
Would it be possible to just encode the the movie in fone file (video / audio) and then put in the pmp container.
Encoding separately and then using PMP Muxer is my causing audio sync issue for me.

xxxstarmanxxx · Joined: 05 Jan 2006 Posts: 84

I feel I must add a post to stop the inaccuracy's regarding background noise and small pops.

1st - This only occurs when encoding with Xvid as it puts more strain on the PSP's CPU.

If you do the same 2 pass encode using the same bitrate with Divx or 3ivx - the problem is resolved - At a cost of video quality.

Terra boost mode has absolutely no effect using a DVD AC3 stream (even in 2.0 stereo mode) - and even if you convert the AC3 stream to PCM WAV and then re-encode - the effect is still there using Xvid.......

It may work for inferior AVI's though by converting the audio to WAV first. - (Not that I could be arsed to encode from anything but DVD).

2nd - argandona is quite correct if you're an Xvid encoder (I think most of us are) ..... - lower your bitrate and you'll see the problem resolved - or (as I'm doing) wait until jonny gives us a wonder update to this program - and gives us some more cpu cycles to play with. Hopefully then - this high frequency feedback will dissappear for good.

As for the bitrate performance overall - I can encode a low motion 6000kbs Divx with 128kbs CBR audio and it would play in PMP player.......anyone could.............its low motion........

All the best

J.

Eingang · Joined: 04 Jan 2006 Posts: 59

@starman

It seems we talk of different things. Do you seriously think I�m so dumb not being able to hear the difference betwwen crakcles caused by too demanding encoding or too much data from that ones I�m talking about ???

The crackles I mean have absolutely nothing to do with bitrate, codec or quality. It�s a surprise you can not hear what I�m talking about at all.

Alcahest · Joined: 25 Mar 2005 Posts: 135

Eingang, i can't hear what you're talking about either.
Execpt the cracks that people reported due to less CPU than needed and high-bitrate demanding scenes, there hasn't been a single post for another sound problem.

Besides,you can test the following to see if it is indeed a PMPMOd problem. Just don't mux your mp3 and put it in PSP\MUSIC and check how the PSP plays it natively
Later,

Alcahest

xxxstarmanxxx · Joined: 05 Jan 2006 Posts: 84

Eingang · Joined: 04 Jan 2006 Posts: 59

Starman,

if this would be an XVid CPU issue, why can I hear it in DivX vids too ? And if it is like you say, shouldn�t it just affect XVid and not any other codec, no matter what bitrate ?

I�ve just made a sample and send the link to Jonny. I want to know where the problem is, even if I am the problem.

xxxstarmanxxx · Joined: 05 Jan 2006 Posts: 84

Djakku · Joined: 30 Jan 2006 Posts: 45

Hello, understand it's a bit off topic but i have kind of a request that may be helpfull in order to save some time: .....
I encoded a batch file of 24 avi or more using a "wizard" ( no need to name the apps, the problem isn't in the application itself) but the thing is that my resolution is not divided by 8 and I got that error on PMP.
So I was thinking, instead of completely reencode my files, couldn't i demux them, separate the audio from the video and then reencode my video by adjusting the screen resolution and then remux.
My question, which is more like a request, is : is it possible to create a pmp demuxer?
Can you create a pmp muxer ( i think its far from being impossible but since i'm no coder, i just know that not my call) ?
Will you ever create a pmp DEmuxer?

thanx for the GREATEST psp Application ever anyway :)

k0nan · Joined: 03 Jan 2006 Posts: 36

I've experienced the same HF-background noise that Eingang has, in fact, I'm surprised it's not reported more often.

As far as I'm aware, it has nothing to do with either PMPmod nor any video codec. It seems to be inherent with AC3 audio sources when converted to 2-channel cbr mp3. I've been able to eliminate it by using the volume normalization option in mencoder, or as Eingang reports, using that Tera boost option in Besweet.

TestType · Joined: 13 Dec 2005 Posts: 23 Location: Iceland

The annoying sound you are reffering to affects the sound in the muxing process, it's got nothing to do with AC3 or anything like that. If you listen to the mp3 track before muxing the sound is not there, but it's there after muxing. I believe the sound is simply the sound of the electrical current running from the outlet to your computer.
Somebody please correct me if they know any better.
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PSP: Japanese Firmware 1.0 :: 1gb SanDisk Memory Stick

jonny · Joined: 22 Sep 2005 Posts: 351

it seems i have found the cause of the audio high f. noise.
the cause seems the use of a low quality option in the ffmpeg mp3 lib.
if i enable the high quality mode, i can't ear differences between pmpmod and the internal psp player.
there is a bad point, performance drop of about 5.5 fps
when the speed will be better, i'll probably shot 2 binaries (with low/high quality audio mode)

synch22 · Joined: 14 Mar 2006 Posts: 3

new here, and i have the pmp original download.

How do i update it to have some of the mods created here? I downloaded some of the files, and even used the pmp folders in the rars posted but its still the same look as the original. please advise on how to update the pmp with a mod, i like what some of the screen caps look like in this topic

reveine · Joined: 03 Jan 2006 Posts: 14

You don't have to update anything. Just download the modified version of pmpmod here. http://www.alex-berl.de/download/PMPMOD_1_02_M4g3_argandona.zip and put the two folders on PSP\GAME
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synch22 · Joined: 14 Mar 2006 Posts: 3

nt wrong topic, i was looking for the small mod topic

yoshaw · Joined: 05 Jan 2006 Posts: 30

Let me say this first. I love Jonny's Mod! I really do! Because I like the different side mods(with amazing GUI's) and their functions that were introduced with it.

Still, this rumor of a new player that came out of Korea.... Holy Fawk! 0_0

It's said that it supports Video at 480x272 with 29.97/30fps and supposedly lag free. AVI, MOV, MP4, OGM, MKV, NUT, ASF, WMV. Audio: MP3, M4A, WMA, OGG, WAV. MPEG1/2/4 video(DivX, XviD), Windows Media Video, Ogg theora, Mpeg audio (MP2, MP3, AAC), AC3, OGG, Windows Media Audio.

Too much to go gaw gaw for. I hope we can see all these implemented in PMP Mod too. I love the new GUI some guys are working on for PMP. I'll try to find the source code for it, maybe that will help Jonny and others for PMP.

Alcahest · Joined: 25 Mar 2005 Posts: 135

Oh my?!!

jockyw2001 · Joined: 29 Sep 2005 Posts: 339

Absolutely stunning. Seems that JiniCho wasn't satisfied yet. Hopefully we'll see sourcecode of this one.

/JockyW

jonny · Joined: 22 Sep 2005 Posts: 351

i've done some tests yesterday and seems really good!

it is probably libavcodec based (maybe an mplayer port?), the color space conversion is done with the gu (maybe the rest is optimized with the vfpu)

i don't understand korean, but i think the source is not available (i'd really like to bench it :)

JockyW: maybe i'm wrong but i think the author is not JiniCho ( i've tryed some google traslation to know more, but with poor results :( )

jockyw2001 · Joined: 29 Sep 2005 Posts: 339

jonny: have you made additional attempts to improve pmp performance by using vfpu and me?

btw: do you have a link to the original korean site? I have a friend who can translate it

/JockyW

Itaintrite · Joined: 15 Jul 2005 Posts: 54

http://pspmini.mud4u.com/bbs/zboard.php?id=softnews&category=6

This player is quite old o.o It was created in Jan 2006. How did we ever miss it? :P

jonny · Joined: 22 Sep 2005 Posts: 351

@JockyW:

the original source should be here:

24/12/2005
http://ruliweb2.dreamwiz.com/ruliboard/read.htm?main=psp&table=util_psp&page=1&num=1988&find=&ftext=&left=j&time=

21/01/2006
http://ruliweb2.dreamwiz.com/ruliboard/read.htm?main=psp&table=util_psp&page=1&num=2142&find=&ftext=&left=j&time=

the first (?) version is out since 24/12/2005!

still not had time to make vfpu optimizations (now we have full vfpu api - so there is a big potential here)
actually i'm optimizing the reading routines (i've changed the pmp format a lot, my internal build support vbr mp3/multi audio)

Itaintrite · Joined: 15 Jul 2005 Posts: 54

This is odd. PSPlayerMT doesn't work with the videos I've tried. Keeps crashing at the "waiting for video to initialize" screen. The only one that worked had trouble while playing. Video slows down to almost a stop :/

Eingang · Joined: 04 Jan 2006 Posts: 59

This appearance is really shocking.

Performance is indeed significantly better. But after testing some hours I can confirm it�s not perfect by far. Tried movs, wmvs, they give crashes and errors. Tried avis without sound, also bad errors. Didn�t test mpg2 though. Also I got it to stutter with my super extreme insane ever highest demanding sample scene..... of course without GMC or anything special, same settings as for pmp.

Jonny, I would be interested in some explanations from you what this player is doing else than yours. Do you think the source code could help you improving your player ?

jonny · Joined: 22 Sep 2005 Posts: 351

from what i understand it is limited to 480x272
i've seen profiles over the links above and the recommended setting for audio seems cbr mp3
the speed is good (i'm not able to directly compare it with pmpmod, without the sourcecode), but gmc/qpel or high bitrate clips still stutters
seek is slow
from what i read, it works on every fw version, that's why i think it not uses the me, the sourcecode could help for sure/maybe optimizations can be merged

ClonePSP · Joined: 25 Jan 2006 Posts: 7

I have tried the exact same avi on both pmp mod and this korean player and indeed, performance wise, it does seem better in that it didnt stutter on the same complex scenes that did stutter on PMP Mod.

However, on the Korean player the audio did not stay in sync which is why I belive jonny introduced the pmp container to get around this problem. Also the seek is nowhere near as good as PMP Mod as it only seeks a bit and then just plays again by itself.

A question for Jonny, this Korean player supposedly the PSP's processor at max(333), does PMP Mod do that ? if not would be be much work for you to put it in ?

Things are looking up, also the mods you mentioned in your private build of PMP mod sound interesting.

Eingang · Joined: 04 Jan 2006 Posts: 59

Of course pmp uses 333Mhz.

I can�t find the player�s source anywhere, if anyone knows something....

26bboy · Joined: 06 Jan 2006 Posts: 6

Interesting reading on the comments from pspupdates with people saying that the author would stop work on the program if it was uploaded to anywhere else then its original hoster, this would be a shame (Read near the bottom of the comments). Imagine would could happen if jonny and this developer worked together...

http://pspupdates.qj.net/PSPlayerMT-For-PSP-Direct-AVI-Player-Works-On-All-the-PSP/pg/49/aid/11016

k0nan · Joined: 03 Jan 2006 Posts: 36

Looks like he just released a new version on 3/20 here but I can't for the life of me figure out how to download it. PSPupdates also removed their d/l link from the author's request. Google & babelfish aren't helping. Can anyone find it?

OmX · Joined: 21 Mar 2006 Posts: 2

You can get the latest version from 'Ruliweb' here. They are affiliated with the author somehow (i think) and are allowed to host his files. Just in case the direct link doesn't work, you should be able to download the the player from here.