Guest The PocketTV Team Posted June 12, 2004 Report Share Posted June 12, 2004 Can you provide a small file that demonstrates the problem that you are refering to ? Do you see this problem with MPEG files encoded with TMPGEnc, using the instructions listed in our guide (http://forum.pocketmovies.net/viewtopic.php?p=3415#3415 ) ? Link to comment Share on other sites More sharing options...
Guest ajb3000 Posted June 12, 2004 Report Share Posted June 12, 2004 Here's an example, it was encoded with TMPGEnc using the guide, but I changed a few settings to make it higher quality in an attempt to remove the artifacting (it is still present when encoding exactly according to your guide). Look very carefully at the dark parts of the picture, and the black frames when it fades to black. On Windows Media Player 9, they are pure black, whereas on PocketTV there are artifacts. I am using the latest version of PocketTV classic. I'm not sure what device you have or how smoothly it will play, but it still plays at a constant 24FPS on the E200.Spider-Man 2(5).zip Link to comment Share on other sites More sharing options...
Guest The PocketTV Team Posted June 13, 2004 Report Share Posted June 13, 2004 > I changed a few settings What setting did you change ? If you changed the number of P-frames between I-frames, then you can get a drift caused by IDCT approximations used by PocketTV (for efficiency reasons). We recommend to keep no more than 5 P-frames between I-frames to prevent drifting or pulsing. Link to comment Share on other sites More sharing options...
Guest barkythedog Posted June 13, 2004 Report Share Posted June 13, 2004 bottom line is it as fast and as smooth as beta player and what happens when beta player can play mpegs, the dog Link to comment Share on other sites More sharing options...
Guest ajb3000 Posted June 13, 2004 Report Share Posted June 13, 2004 The only things I changed were the dimensions (removed 8 pixels each way), and upped the bitrate. I get the artifacting when using your settings exactly as well. Turning on dithering makes it more apparent, but it's still there with it off. Link to comment Share on other sites More sharing options...
Guest The PocketTV Team Posted June 13, 2004 Report Share Posted June 13, 2004 I'll have a look, thanks. Link to comment Share on other sites More sharing options...
Guest maxh2003 Posted June 15, 2004 Report Share Posted June 15, 2004 On Windows Media Player 9, they are pure black, whereas on PocketTV there are artifacts - are you sure this isn't just the difference between the CRT monitor on your PC, and the powerfully-lit LCD screen on your phone? I suggest turning the brightness on your monitor up to the absolute maximum, then playing the video - you might suddenly be able to see the artifacts. Link to comment Share on other sites More sharing options...
Guest The PocketTV Team Posted June 15, 2004 Report Share Posted June 15, 2004 Yes, that may be the major reason for which you see those artifacts in the black areas on your Smartphone. You can try to reduce the visibility of those artefacts by adjusting the levels with the advanced options (Custom color correction) of TMPGEnc. Link to comment Share on other sites More sharing options...
Guest ajb3000 Posted June 15, 2004 Report Share Posted June 15, 2004 I have tried it on a TFT and it still looks pure black to me, plus at a bit rate of 250kbps, you'd expect it to be able to render black without artifacts. The same video clip (but in divx format) on beta player displays the pure black scenes correctly, but it keeps dropping frames and hence, isn't as smooth. Link to comment Share on other sites More sharing options...
Guest The PocketTV Team Posted June 15, 2004 Report Share Posted June 15, 2004 I think the problem you have may be an encoder-related issue. In TMPGEnc, go in Settings > Advanced and double-click "Custom Color Correction". Select "Show Histogram, and select "YCrCb" in the histogram window. Check that the histogram for the scene that has the artifacts is correct, i.e. that the left part of the histogram touches the left part of the histogram window (i.e. check that black is coded as black). If that is not the case, you can correct that: click "Add", select "Type YUV" and adjust the various settings for Y until the histogram looks correct. Link to comment Share on other sites More sharing options...
Guest ajb3000 Posted June 20, 2004 Report Share Posted June 20, 2004 It's not a problem with the encoding.... The video looks perfect when played back on the PC (even with an LCD display and the video stretched to 200%), it's only on PocketTV that it artifacts. If you watch the video, you will also notice the artifacts are in the shape of the previous image (i.e. it's not refreshing black images properly). I have done what you said in TMPGEnc, and black is being encoded as black. Link to comment Share on other sites More sharing options...
Guest The PocketTV Team Posted June 20, 2004 Report Share Posted June 20, 2004 Have you tried playing the same file on your device using another MPEG player, e.g. PocketMVP ? What does it looks like with the other player ? Link to comment Share on other sites More sharing options...
Guest elhornet Posted June 20, 2004 Report Share Posted June 20, 2004 This is working really well on my E200. One thing I was wondering though, when I convert avi > mpeg using the templates you suggested, the mpeg seems to come out with no sound? Am I supposed to put the avi file in both Video and Audio file section of TMPGEnc? Link to comment Share on other sites More sharing options...
Guest The PocketTV Team Posted June 21, 2004 Report Share Posted June 21, 2004 This is working really well on my E200. One thing I was wondering though, when I convert avi > mpeg using the templates you suggested, the mpeg seems to come out with no sound? Am I supposed to put the avi file in both Video and Audio file section of TMPGEnc? Yes. When you select the Video AVI source file using the "Browse" button, it should fill-up the same AVI file name in the Audio source. If it does not, try entering the same file name manually. Link to comment Share on other sites More sharing options...
Guest elhornet Posted June 21, 2004 Report Share Posted June 21, 2004 Cool thanks. All in all this is a fantastic app. I sure got some weird looks from the guy sitting next to me on the train while watching some TV shows I'd loaded up :D Link to comment Share on other sites More sharing options...
Guest ajb3000 Posted June 21, 2004 Report Share Posted June 21, 2004 PocketMVP will not play the file (comes up with an message saying audio error, loads the first frame and refuses to play), and I do not know of any other MPG players... Link to comment Share on other sites More sharing options...
Guest elhornet Posted July 9, 2004 Report Share Posted July 9, 2004 Havent used this for a while but can't seem to get any fps faster than 4 now. I don't know what happened, I remember it being around 17 before :D Link to comment Share on other sites More sharing options...
Guest The PocketTV Team Posted July 9, 2004 Report Share Posted July 9, 2004 Yes, you should get 17 to 24 fps if the parameters of your MPEG files (bitrate, image size etc) are optimized for Smartphone, e.g. if you used our MPEG conversion templates (see http://forum.pocketmovies.net/viewtopic.ph...php?p=3415#3415 ). Link to comment Share on other sites More sharing options...
Guest barkythedog Posted July 9, 2004 Report Share Posted July 9, 2004 altenatively use betaplayer much smoother much faster altogether a much much better player and should have mpeg soon aswell then the player will have everything covered as nothing currently touches it and its free no registration etc check it out mate youll never look back, the dog Link to comment Share on other sites More sharing options...
Guest ajb3000 Posted July 9, 2004 Report Share Posted July 9, 2004 I take it nothing is going to be done about the artifacting then? I would just use betaplayer but it appears to be dropping a lot of frames which is causing jerky playback. Link to comment Share on other sites More sharing options...
Guest elhornet Posted July 9, 2004 Report Share Posted July 9, 2004 you guys are pretty hard on someone who's offering a freeware player calm down! Link to comment Share on other sites More sharing options...
Guest skiba2 Posted April 6, 2005 Report Share Posted April 6, 2005 Keep up the good work "The PocketTV Team" :D i dont mind waiting while this issue gets sorted out :D ive been using it for a good while but reading this post will holdonto my movies on my c500 till this is sorted. take ur time we all got lives outside our pc's / phones :D Link to comment Share on other sites More sharing options...
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