I have downloaded some avi's that are 512 x 384. Is there any way to put them on a dvd at this resolution? Or what is the best res to convert them to without killing the quality too much. I can encode them in tmpgenc at their original res but would that be able to be put on a dvd?
Hi, There are only 4 resolutions that are DVD Compliant so you have to encode your File to Mpeg-2 useing one of those resolutions.... Full D1 ... 720 x 480 .... Broadcast D1...704 X 480 ... Half D1 ..352 x 480 ..... Sif/Cif .. 352 x 240 .... If the Quality of your AVI file is Pretty Good and you are going to use Tmpgenc to encode your File to Mpeg-2 then I suggest you set it up Like this.... Set the Output resolution to 720+480 and then go to the "Advanced" settings Tab and were it says "Video Arrange Method" set it to "Center(Custom Size)" and then set the "Custom Size" to "640+480".... This will Properly Resize your File to DVD Resolution without Stretching or Squishing the Image and keeping the Original aspect Ratio (Also remember to set the output aspect Ratio to 4:3)... There will be a 40 Pixel Border on the Left and Right sides of the Frame but that shouldn"t show up on your TV set as your TV sets Overscan should cut that off.... Cheers
Why would you resize to 640x480? This deforms the video, and can add a huge amount of time to the encoding process. I would set source (on the advanced tab) to Fullscreen, keep aspect ratio 2. Set aspect to 4:3 720x480.
If you check when encodeing a 512+384 source file,setting the "Video Arrange Method" to "FullScreen (Keep aspect ratio 2)" does the exact same thing as setting it to "Center (Custom size)" and then setting the Custom size to 640+480 .... I just Tried setting the "Video Arrange Method" to "Fullscreen (KeepAspect ratio 2)" with a 512+384 source file and it resized the Frame to 640+480 and added a 40 Pixel Border to the Left and Right Sides to make up the 720+480 resolution.... 512 X 384 doesn"t Resize to 720 x 480 properly ,The Highest Resolution it resizes to while Keeping the source aspect ratio is 640x480 which is why there is a 40 Pixel border on each side and since Tmpgenc does the exact same thing when set to "Full Screen(Keep Aspect ratio 2)" then i suppose it is Correct..... Cheers
I didn't actually do any math. I have always used keep aspect ratio 2 on any source that is not 4:3 dvd spec. I don't have any test video here, but if you force a frame size change to 640x480, it may add substantially to the encoding time. If you just use keep aspect 2, it produces the same result, without an actual forced resize. I don't know if tmpgenc will physically resize each frame under both conditions or not, and I suspect the encoding time may be identical as well. It's just easier to use keep aspect ratio 2, and not have to do any math
Well, ill try both ways and see which gives the best results. Another question, my avi's are 23.976 fps, i assume i need to convert this aswell?? but if i change the fps, will that stuff up the audio? And another problem, i live in australia so i would need to change it to PAL
What you do when your Source file is 23.976fps is First set the "Encode Mode" setting to "3:2 Pulldown When Playback" and then set the "Frame Rate" setting to "23.976fps(Internally 29.976fps)" and then it will encode your File to 29.976fps useing 3:2 Pulldown... Cheers
Thanks, ive just realized i need to convert it to PAL cos i live in australia. So that would be different resolution and FPS?
Yes that would be ...You should set the Resolution to 720x576 and in the "Center(Custom size)" setting put in 720x544 or you can set it to "Full Screen (keep Aspect ratio 2)" which does the same thing... You also would set the Frame Rate to 25fps but this Can Cause some problems because Tmpgenc Like Most other encoders doesn"t do very Good Frame rate conversions so you may experience a slight skipping or Jumpy effect especially in High motion scenes..... If you can get ahold of "Canopus Procoder" it does very Good NTSC/Pal conversions and it is a very good quality encoder..... If you experience the skipping problem in the encoded file then let me Know and I will try to explain a different Method for converting 23.976fps Video to 25fps.... Cheers
There's a simpler way. Encode the video to 23.976fps (internally) as Minion mentioned above. Make sure you select 4:3 and 720x576 on the Settings screen. Select Fullscreen, Keep aspect ratio 2 on the Advanced screen. Once the video is encoded, it will be in PAL resolution, but at NTSC film framerate. Get DGPulldown (free software), and load in the video. Select pulldown from 23.976 -> 25 and run it. It'll take a few minutes, and produce a new mpg. Author and burn the dgpulldown.mpg Test in your standalone player. I've been doing it this way for about 6 months (actually the reverse, from PAL to NTSC), and have yet to find a player that won't play these files.
Procoder does an excellent job. Only thing ive noticed is that the movie has been shortened by about 4 minutes. Doesnt seem to be noticable when playing though. DGPulldown sorta makes it a bit better but still has noticable skips now and again.
