DeepFry prop video player (update 6/20/08)

vampyre · 2008-06-16 01:07

alpha release, still a lil buggy, but it works

example video:
www.youtube.com/watch?v=KLeLwTQ4J3o

DeepFry is a prop application that will play color video files on your NTSC tv from your SD card
the videos are in .pvf format, a custom format.

AVI files can be converted using the freeware app virtualdub, and the included videomaker.exe utility

in this release, the audio is still a little glitchy, but it works well enough to make me giggle like a little girl

I'm releasing it a bit early in case anyone wants to play with it. Please let me know if you are able to get it to play vids, or if you have trouble with it.

suggestions, bug reports or feature requests are very welcome

new new version attached:

Post Edited (vampyre) : 6/20/2008 7:09:46 AM GMT

Oldbitcollector (Jeff) · 2008-06-16 02:37

Very Cool...

Here's a converted video of the Quadrover..
(I think I got this right..)

OBC

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Post Edited (Oldbitcollector) : 6/17/2008 10:41:09 PM GMT

vampyre · 2008-06-16 04:58

thats a great example video OBC, thanks for posting that conversion. looks great, i can even read some of the text which, is astounding at this low resolution. Plus its nice to know someone other than myself was able to get it to convert a video

the video looks a little like it might be pausing, slowing down in places? and then the audio dies out. did you notice that or is it just me? maybe my SD card is badly fragmented

couple of extra notes on this release:
i didn't release the source code for the converter, but if anyone wants it i'll gladly post it. its written in plain old C (for dev c++) using the allegro gaming library

very-soon-to-come future revisions include :
120x96 resolution option and hydra support (thanks to baggers), non-clicky audio, a GUI for the converter, and the ability to adjust colors of the video your processing.

Oldbitcollector (Jeff) · 2008-06-16 05:04

It looks like the audio is a little fast.. It seems to kick in early and end early
for some reason. It doesn't sound off, just in the wrong spot.

You'll get it.. [noparse]:)[/noparse]

OBC

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vampyre · 2008-06-16 05:29

actually ,i think the audio plays just a tad slow (i had to slow it down a bit to get it to play at all in the code, the pitch of peoples voices will sound a tad low to those with good pitch detection). i was curious so i downloaded the same video (got mine from youtube) and converted it.

the first difference i noticed was that my video comes out to about 10.3 megs instead of 20.something. when playing it it seems to work fine. My guess is that you dind't first convert your video to 15 frames per second? if you were using virtualdub its because that program is rather confusing when it comes to framrate conversion.

to make things either easier (or more complicated , not sure which)... i created a settings file for virtualdub that people can download, with all the correct settings

To use this
1. start virtual dub, load your movie
2. click file->load settings file (or press CTRL-L), and select the pvfmaker.vcf file
3. export your video as usual

if you try this please let me know if it works.

Oldbitcollector (Jeff) · 2008-06-16 05:40

I'll try it in the morning.. But I think I see my mistake..

I used "Change frame rate to: (fps)" and put 15 in the box,
you have "Convert to fps" selected with 15.0000 below the option I used.

Good idea to put the configuration file with it.. Will save everyone errors [noparse]:)[/noparse]

OBC

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Getting started with the Protoboard? - Propeller Cookbook 1.4
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Baggers · 2008-06-16 08:14

looks cool vampyre [noparse];)[/noparse] are you any closer to getting the audio sorted?

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·

vampyre · 2008-06-16 21:37

OBC:
thanks a lot for trying it out, feedback is really helpful.

Baggers:
Yes and no. the sound is now much better than before, but i'm still having trouble wrapping my brain around non-linear code

Baggers · 2008-06-16 22:22

cool [noparse];)[/noparse] great fun working non-linear isn't it :P lol

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Timothy D. Swieter · 2008-06-17 00:16

Wow. This is neat. So all those hydra games can have animated sequences now, right. Who wants to post MGS4 to the Propeller?

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Timothy D. Swieter

www.brilldea.com·- uOLED-IOC, RGB LEDs, TLC5940 driver PCB
www.tdswieter.com

One little spark of imagination is all it takes for an idea to explode

vampyre · 2008-06-17 00:21

It is a fun challenge, and the benifits are well worth it. I'm not sure i can figure out double buffering though.

perhaps its the spin code, or perhaps my SD card, but i can't seem to load enough data quickly. at this point the sound is similar to an old scratched up record, which is acceptable to me for now. i think im gonna work on the converter until i have an epiphany about how to do the player better.

Timothy:
Thats actually my next planned move with this monstrosity, is to make a video-based game

Baggers · 2008-06-17 08:56

vampyre if you need help with the double buffering let me know, ps spotted a bug or two [noparse]:)[/noparse]

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Perry · 2008-06-17 10:53

I have been following this thread closely trying to make "stupid video capture" with audio.

Some concerns/thoughts..

in the video code "Doug Dingus 07/07 Rev 1.0 For HYDRA " lines 132,133 and 256 there are references to a debug led
this makes my proto board's SD card fail.

there seems to ben no audio after "N I C E . . ." ???

for better timing try this :

  SyncPoint := cnt
  repeat
     'load sound chunk 
    i := sd.pread(@mywavdata, 1024)
    if(i<1024)
      reboot
         'load video frame
    i := sd.pread(@displayb,HORIZONTAL_PIXELS*VERTICAL_PIXELS)
    if(i<1)
      reboot
      
     'wait for buffer to finish playing
'    repeat while(mywavdata[noparse][[/noparse]1023]<>0)

    waitcnt(SyncPoint += 5_333_333)  '  force 15 Hz refresh

Perry

CassLan · 2008-06-17 14:41

I can't get it to start, I just keep hearing a clicking so I'm assuming its reseting.

I did copy the 'frog.pvf. vid that OBC posted onto my SD card.

And PropDOS loads just fine with defaults, using that as a reference, my TV, KB, SD, Audio..etc all works.

Any ideas?

Thanks,

Rick

Oldbitcollector (Jeff) · 2008-06-17 14:44

The video is not in sync with the audio..

I will fix and re-upload that today.. Sorry

OBC

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New to the Propeller?

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vampyre · 2008-06-17 17:02

Thanks much to everyone for the feedback

Baggers:
any help is greatly appreciated. what bugs have you noticed? I was hoping someone could help me with my logic, here's the basic concept i've got for double buffering:

  begin pseudocode:

   start audio player in separate cog

   repeat forever
      load first audio buffer
 
      repeat while second buffer is still playing
         wait here

      load first video frame
      load second audio buffer

      repeat while first buffer is still playing
         wait here

      load second video frame

 
  --wav player in new cog--
    
     j = true

     repeat forever
       if j = true        
          play first audio buffer
       else 
          play second buffer
     not j

is this logically correct? It doesn't feel right to me, i wanna be sure my logic is right before i try to find bugs in the code.

OBC:
thanks again for that video. I'd been trying to think of some video i could post that wouldn't cause copyright issues. I dont think parallax will be terribly upset about putting a commercial for a prop-based-robot on the prop itself [noparse]:)[/noparse]

cassian:
this app was written for propdos or porthos, so if there is any error, it simply reboots. if you load the program into your ROM it will reboot over and over again on an error. is your tv screen red or black during the clicking?

My guess is that your prop isn't set up the way mine is, and my code isn't smart nuff to know about it. what pins are your TV and your SD card hooked up to? Also what hardware platform are you using? i.e. , is it a protoboard, hydra, something custom made,etc?

perry:
OBC is correct about the timing issue, its a problem with that video file, not the player (not that the player is bug free by any means). the players speed is based on the speed of the audio, i.e. frames will only load as fast as the audio plays.
also your right about the LED. I'll soon switch to baggers modified version of the driver which comments that out, as well as a few other nifty things

CassLan · 2008-06-17 20:36

Thanks for your reply,

Well I've tried running it via PropDOS with the same results.
I tried re-downloading the video with no luck.
I can play wav's off the SD etc.

TV - 12-14
SD - 0-4
I'll try the next release, if I get it working I'll let you know, sounds awesome!!!

Oh and I'm using a protoboard with OBCs design suggestions in the CookBook.

THanks,

Rick

vampyre · 2008-06-17 21:42

Cassian:
Thanks for your feedback. As per perry's note in this thread, some protoboard users may experience problems ( I use one, and i havn't got the problem ) but the next version will fix that error. in the meantime if you want to try to find the problem, try fryview, if that works for you then we can assume the problem isn't the video driver.

fryview can be found here :
http://forums.parallax.com/showthread.php?p=730288

vampyre · 2008-06-17 21:44

Minor update to the converter, its now much easier to use.
still a bit of a hassle to set up, as it still needs virtual dub, and i can't bundle that with the converter for liscensing issues, but once its set up, converting is now all automated. you just copy your video into the directory , run the batch file, and watch the pretty colors, then bam, u have a PVF file

the new file is linked in the first message in this thread

Post Edited (vampyre) : 6/18/2008 5:34:49 AM GMT

Oldbitcollector (Jeff) · 2008-06-17 22:32

Ok.. Took a little time from my current project to *properly* convert some video for deepfry.

A proper quadrover video
jeffledger.googlepages.com/quadrover.zip

Paul @ Parallax doing a temperature test on the Demoboard
jeffledger.googlepages.com/paul.zip

A little cool surprize..
jeffledger.googlepages.com/spaceace.zip

OBC

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New to the Propeller?

Getting started with the Protoboard? - Propeller Cookbook 1.4
Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
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CassLan · 2008-06-17 22:50

Hey vamp,

ok I DLed fryview, tried to convert the sample cat PPM image via PropDOS and when I hit enter after the settings screen, the screen goes blank until I reset the prop. No PGF gets created.
The color test works though.

Rick

Oldbitcollector (Jeff) · 2008-06-17 22:54

Rick,

Did Spudview (the project this is based from) work with your setup?
That would eliminate the video driver from the problem..

BTW, I need to update the Cookbook, but I've been running SD on 16-19
for a while now.. It frees 0-7 for use as a experimentation/game port if you
use the SpinStudio setup.

OBC

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New to the Propeller?

Getting started with the Protoboard? - Propeller Cookbook 1.4
Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
Got an SD card? - PropDOS
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CassLan · 2008-06-17 23:27

I had the same issues as Perry, I REMed lines 132,133 & 256 from mashedpotatos and it solved it!!!!!

Thanks for the patience guys.

@OBC

I REMed those same lines for the fryview and it worked, although it made my dogs look evil.

Post Edited (casslan) : 6/17/2008 11:47:52 PM GMT

vampyre · 2008-06-18 00:54

thats great to hear cassian, it sounds like that code is a real problem, i'll make that a higher priority.. my prop isn't hooked up at the moment (kids abducted my television to play games on) but im looking forward to seeing your dogs. on images that simply refuse to co-operate i turn the saturation down to -255 (and make the image black and white). Try remarking out those same lines in the mashed-potatos driver for deepfry and that should fix your problem

OBC:
i am really looking forward to seeing those vids, thanks so much for posting them. out of curiousity, did you use the new converter i posted today or did you do all three of those the old fashioned way?

I've noticed an audio sync problem i think with the longer videos, i need to check my settings

Oldbitcollector (Jeff) · 2008-06-18 04:32

Sorry, I used the old method.. (old dogs, new tricks...)
I'll give the other a go on the next conversion...

BTW, SpaceAce looks awesome on my little 7" LCD screen. [noparse]:)[/noparse]

OBC

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New to the Propeller?

Getting started with the Protoboard? - Propeller Cookbook 1.4
Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
Got an SD card? - PropDOS
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CassLan · 2008-06-18 05:17

I used your converter script...WAY EASY.

Very nice and simple. Sound is still a tad out of synch though, I'm sure you'll work it out.
I'm impressed by the high frame rates.

Here is a good fight scene for the masses:
(its a little bigger than the limit of uploads here - 10MB)

http://www.cassidydevelopment.net/dl/dragon.rar

enjoy,

Rick

vampyre · 2008-06-18 21:52

thanks for the video , and for trying out the script. i think the sound sync problem is with my virtual dub settings. im working on those now

still having trouble with double buffering, could definately use help with that if anyone wants to toss me a bone

as for frame rates, i believe that this (at 15 fps) is gonna be the limits of spin code unless i find a smarter way to to do it, that being said im quite happy with it. once i get the audio bugs worked out, and add the modified driver i think i'll call it done

Perry · 2008-06-18 23:14

the sound is not staying in sync with the audio

try this:

add a variable

var
long ii

after you read the audio from SD


ii:=0

in the player cog loop use:

 repeat
      repeat ii from 0 to 1023
         NextCnt+=5550 'should be 10000 for 8 ksps
         waitcnt(NextCnt)
         FRQA:=(byte[noparse][[/noparse]@buff1+ii])<<24
         FRQB:=FRQA

you make ii global so that you can reset the audio play cog every time you read from the SD.
audio is way cleaner !!!
I have changed wplay in "PropDOS" to this so I can play named files

Perry

Post Edited (Perry) : 6/18/2008 11:20:38 PM GMT

Oldbitcollector (Jeff) · 2008-06-18 23:36

Perry,

Would you mind posting your complete code for this? I'm a little lost..

Thanks
OBC

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New to the Propeller?

Getting started with the Protoboard? - Propeller Cookbook 1.4
Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
Got an SD card? - PropDOS
Need a part? Got spare electronics? - The Electronics Exchange

Oldbitcollector (Jeff) · 2008-06-19 00:05

Playing with the audio section, I was able to knock out a lot of click with the following adjustment..

 repeat
      repeat i from 50 to 1023
         NextCnt+=5550 'should be 10000 for 8 ksps
         waitcnt(NextCnt)
         FRQA:=(byte[noparse][[/noparse]@mywavdata+i])<<24
         FRQB:=FRQA     
         rate := byte[noparse][[/noparse]@mywavdata+i]~

@Perry, still want to see what you are doing..

OBC

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New to the Propeller?

Getting started with the Protoboard? - Propeller Cookbook 1.4
Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
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Perry · 2008-06-19 00:53

Attached is a work in progress "Prop VideoDOS"

at command line entry type in
vplay frog.pvf ' or other filename

my micro A/V Protoboard setup:

Device             I/O  Pins

SD card             0,1,2,3
Video IN            4,6
Comp Sync IN         5
INFRA Red            7
Audio IN            8,9
Audio OUT         10,11
Video OUT          12,13,14, (15 for VHF audio)

Perry

Post Edited (Perry) : 6/19/2008 1:02:11 AM GMT

DeepFry prop video player (update 6/20/08)

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