Charles Simonson
Forum Replies Created
-
For 720p to 480p MPEG-2 downconversions, I have found the MainConcept Encoder to be the fastest, highest quality, and most reliable software encoder on the mac.
-
Cleaner won’t encode to HD sizes. You’ll either have to use QT or Sorenson Squeeze 4.1. Also, WMV7 is not a HD codec. And if you’re using WMA9, then there is no reason to use WMV7; WMV9 should be used. This is a case where the client really needs to be educated. Also, 720p is 1280×720, not 1280×768, if that’s what you’re trying to output.
-
It will probably be a little less than upscaling on the fly, depending on the bitrate. If you have all the bitrate in the world to max out to, then you will be fine most likely. But if you have to hit a target bitrate, then the lower resolution version will look better, even scaled up during playback. What you could do, is encode at 640×480, and place the WMV inside a Powerpoint presentation. Manually set the size of the WMV in the Powerpoint doc to your desired resolution. That way, whenever it is played back, the size is automatically set to the client’s wishes.
-
Use this to calculate bitrate averages for your project size:
https://www.videohelp.com/calc.htm
I usually set my target for the amount of video I am encoding to 4000MB, because I usually have about 200-300MB of menus and extras. Also, if you don’t want to re-encode all of your video, you could try an app like DVD2One after building the disc to make the build smaller. There will be some recompression, but it will be MUCH faster than completely re-encoding from the sources. -
You could make a decent looking WMV at that size by upscaling, but the real question should be, why? I would recommend that you just make the WMV at its native size, and do the scaling on the fly during playback. Either play the movie full screen, or if it is embedded, then just set it to playback at 1280×960. Upscaling through software encodng will not be any better visually than through playback.
-
Take a look at MPEG StreamClip. As long as your video and audio tracks have the same name, all you have to do is load the video track into the app and the audio will be automatically associated. Then select “Convert to TS…” and your transport stream will be built.
-
Try ffmpegX. If that doesn’t work, there used to be an app called divxTool, that allowed you to change the fourcc of the movie to make it compatible with QT. There was also DivX Validator, which could convert to DivX QT movies. And there is still DivX Doctor from 3ivx, which rewrites DivX AVIs to DivX MOVs, essentially the same thing. If all of that doesn’t work, I would then try the ffmpeg codec. If you don’t have any luck, or can’t find some of these tools, email me.
Try google and macupdate.com or versiontracker.com to locate.
-
MPEG-1
-
As I said, try either encoding your audio with ffmpegX, or if you encoded the video as VBR originally, then reencode it using CBR.
-
I agree that it sounds like a field order issue. The other thing that pops to mind, is if you are working with 24p material. If so, then make sure the appropriate 3:2 pulldown flags are enabled when encoding.