rockbox video fps question

[silverstar]

hi
just wondering what is the highest fps rate that you have acheived on the h320/h340 with video and sound together?

i heard there was a problem still with the newer builds and video. can someone explain it? i couldnt find out what it was.

thx

[ozjeremy]

Using the converter program contributed in an earlier thread, I've tried 25fps (video goes much slower than audio) and 10fps (didn't play video at all, only sound). I tried not selecting the fps, same result as with 25fps.

What settings are people using successfully?

[gearheadE34]

at the moment, audio decodes real-time, but the vidio is only playing with whatever processing power isn't taken up with the audio. I don't think that anyone has gotten the video to sync with the audio, but it is just a matter of time. That is the problem.

I get about 15 fps with a VLC encoded video, which is not bad at all considering that the base firmware played at 10 IIRC

[silverstar]

Originally Posted by gearheadE34

at the moment, audio decodes real-time, but the vidio is only playing with whatever processing power isn't taken up with the audio. I don't think that anyone has gotten the video to sync with the audio, but it is just a matter of time. That is the problem.

I get about 15 fps with a VLC encoded video, which is not bad at all considering that the base firmware played at 10 IIRC

can u see a noticable difference with the 5 FPS upgrade?

[juanpa74]

Which update is that? Which build?

[gearheadE34]

I am using the latest Kosh build

I'm sure that there will be a big difference once the video is playing at the right speed, but because the video playback is currently 10 fps slower than what mpeg2 supports and what my videoes are encoded to, it basically looks like a sequance of pictures. (fyi, thats all mpeg2 is) For the time being, the stock fw looks better, but rockbox actually has better color and fewer artifacts. once playback is real time, it should look much better.

[juanpa74]

Originally Posted by gearheadE34

I get about 15 fps with a VLC encoded video, which is not bad at all considering that the base firmware played at 10 IIRC

Originally Posted by gearheadE34

I am using the latest Kosh build
For the time being, the stock fw looks better, but rockbox actually has better color and fewer artifacts. once playback is real time, it should look much better.

So, if the Rockbox plays 5fps faster than the IRiver original firmware and has better color and fewer artifacts.... What makes the stock fw looks better?
I mean, sounds better (synched) I understand that...
I wish Rockbox will support AVI,divX, Xvid in the future....
Just thinking... What do you call the base firmware? the original Iriver one or the CVS rockbox?
Thanks

[gearheadE34]

the only reason it looks better is because it is playing real-time on the iriver FW. at the moment, rockbox video looks more or less like a movie playing at about 2/3 speed, so it looks very jerky.

as to AVI support, the iriver FW already does that....and since vlc can convert basically anything to mpeg2, IMO thats all thats necessary. I'm not a coder, but it would take a long time to optimize that many video codecs.

and for the names, i call the iriver firmware the stock FW or iriver FW (FW for firmware). CVS and daily builds are rockbox, and i call them just what they are. If I'm talking about an experimantal build, i just use the build's name. Not sure i understood the question, though. Hope this helps

[juanpa74]

Yes you understood the question, I was just a bit confused.

The point for me for AVI is that I wouldn't like to start the Iriver FW again.
And I think the Ipods don't do AVI.. so for some people (like me) who owns more than one player I would like to use just one format.
I guess if I have my videos in AVI I will still have to convert or resize them. But I think (could be wrong) it would take less time to resize a video rather than resizing and transcoding at the same time.
My videos don't look very jerky on Rockbox but they do in the Iriver Firmware (the ones I tried). But it should depend on bitrate,resolution,. ..
I think the less fps the jerkier they look. So I get 15 fps with Rockbox, 10 with Iriver FW.

[gearheadE34]

Ipods play mpeg4 and that is all, I believe. I see what you mean, being the cheap person I am I had to reencode each video three times to get from VOB (DVD) to AVI. It took forever.

Yup, the greater the fps, the smoother it looks and the more processing power it takes.

[EDG4]

Hello guys
I have been trying many mpeg encoders and none of them support lower than 24 fps. I need your help:I need to know what software can encode to mpeg-1 or mpeg-2, fps 15. Will video and audio play at the same time using file, for example 256x118/15fps;224x176/15fps?
Thanks.

[FLiNT]

Take a look at this post, it should help you out:
http://misticriver.net/showthread.ph...643#post534643

[EDG4]

What do you mean drag & drop batch file "C:\Progra~1\mplayer \mencoder.exe" %1 -of mpeg -oac lavc -lavcopts acodec=mp2:abitrate= 128 -af resample=44100:0:0 -ovc lavc -lavcopts vcodec=mpeg1video:vb itrate=354 -vf scale -zoom -xy 224 -ofps 15 -o %1.mpg" ?
I have tryed mediacoder and can't make 224x176. added video 512/384=aspect ratio 1.33,then set new resolution 234x176 and i get video encoded 256x176 which runs full screen but only at 11 fps (audio bitrate 64 audio, video - 200), choosing 176x144 i get encoded 256x144 which runs nearly 15 fps, a bit laggy.
any good tips?
thanks

[splinter6]

Originally Posted by EDG4

What do you mean drag & drop batch file "C:\Progra~1\mplayer \mencoder.exe" %1 -of mpeg -oac lavc -lavcopts acodec=mp2:abitrate= 128 -af resample=44100:0:0 -ovc lavc -lavcopts vcodec=mpeg1video:vb itrate=354 -vf scale -zoom -xy 224 -ofps 15 -o %1.mpg" ?
I have tryed mediacoder and can't make 224x176. added video 512/384=aspect ratio 1.33,then set new resolution 234x176 and i get video encoded 256x176 which runs full screen but only at 11 fps (audio bitrate 64 audio, video - 200), choosing 176x144 i get encoded 256x144 which runs nearly 15 fps, a bit laggy.
any good tips?
thanks

Theres a problem with one of the patches and they have only done a temporary fix. That is why the performance is bad

[FLiNT]

Originally Posted by EDG4

What do you mean drag & drop batch file

Assuming you are working under Windows:

Make a new text file (.txt), put in the command line I posted and save it. Now change .txt to .bat .

Then all you have to do to convert a video file is to drag and drop it into the icon of the .bat file.

Simple and plain.

[EDG4]

Originally Posted by splinter6

Theres a problem with one of the patches and they have only done a temporary fix. That is why the performance is bad

Are the essential patches for better fps included in the latest built, Experimental build by KOSH or Norbusan's ? Or the patches must be installed manualy, at this point i don't understand binary language.

I made .bat file inlcuding this code,
"C:\Progra~1\VideoLA N\VLC\vlc.exe" %1 --sout=#transcode{vcod ec=mp2v,vb=400,width =224,height=176,acod ec=mp3,ab=128,sample rate=44100}:std{acce ss-video=file,mux=ps,ds t-video=%1.mpg}

got installed the latest vlc. Whan i put ,mpg or any other type file into .bat, it just opens vlc and nothing happings then. Is this code correct? are any settings needed to set to get it work, setting other resolution ETC.

[splinter6]

Originally Posted by EDG4

Are the essential patches for better fps included in the latest built, Experimental build by KOSH or Norbusan's ? Or the patches must be installed manualy, at this point i don't understand binary language.

I made .bat file inlcuding this code,
"C:\Progra~1\VideoLA N\VLC\vlc.exe" %1 --sout=#transcode{vcod ec=mp2v,vb=400,width =224,height=176,acod ec=mp3,ab=128,sample rate=44100}:std{acce ss-video=file,mux=ps,ds t-video=%1.mpg}

got installed the latest vlc. Whan i put ,mpg or any other type file into .bat, it just opens vlc and nothing happings then. Is this code correct? are any settings needed to set to get it work, setting other resolution ETC.

the patch is included but only has a temporary fix on it. Something to do with memory management issues or something like that.