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| donnyj:
--- Quote from: Howard_Casto on February 05, 2005, 09:51:50 am ---Just something I wanted to suggest.... I've noticed that even with compression the bitrate is suprisingly high. --- End quote --- |
| Silver:
--- Quote from: Howard_Casto on February 05, 2005, 09:51:50 am ---Just something I wanted to suggest.... I've noticed that even with compression the bitrate is suprisingly high. You would be suprised how low you can knock down the bitrate and still have identical picture quality. Even my near lossless captures I did for the old 3darcade videos had 1/3 the bitrate of the vids the mm makes with any of the compressors. The reason I mention it is the bitrate acounts for a lot of the file size. It may be possible to make these vids much smaller without any noticable difference. --- End quote --- Its a good point. This is especially true of some of the older, simpler games in mame.... As mentioned, the default settings are generous... but now you can "mix your own" everyone should be happy |
| Silver:
--- Quote from: donnyj on February 05, 2005, 10:00:03 am ---Any ideas on what quantifiers you used? --- End quote --- I've found that comparing quantizer numbers across different codecs doesn't always match up... but you never know. The default in mm for Xvid is around 4 (ie high quality high bitrate) and you could make the Target Quantizer a lot higher and have good results, as Howard suggests.... |
| Silver:
--- Quote from: Buddabing on February 04, 2005, 08:43:48 am ---Hi Silver, Does he know about the crash when the sequence of uncompressed pngs is used? Was it fixed in 1.6.3? Some users may want to use uncompressed pngs via -moviecompression 0 -movievideo 0 to generate the highest quality video possible, then compress it themselves later on. As of version 1.6.2, Vdub crashes when this is selected. --- End quote --- Avery Lee (author of Vdub) has confirmed that he is found and resolved the crash caused by uncompressed pngs, and the fix will be included in 1.6.4 - the next release... |
| Buddabing:
--- Quote from: Howard_Casto on February 05, 2005, 09:51:50 am ---Just something I wanted to suggest.... I've noticed that even with compression the bitrate is suprisingly high. You would be suprised how low you can knock down the bitrate and still have identical picture quality. Even my near lossless captures I did for the old 3darcade videos had 1/3 the bitrate of the vids the mm makes with any of the compressors. The reason I mention it is the bitrate acounts for a lot of the file size. It may be possible to make these vids much smaller without any noticable difference. --- End quote --- If you guys want to play around with the settings for Xvid via -movievideo 4, and you think you get settings that would be useful as the default, I'll change the defaults. I just put the code in, Silver did the encoding part of this project. It would be definitely worth decreasing the bitrate if the playback is better on lower-spec machines with no perceptible loss of image quality. Look for "BuddaMAME" version 0.91 on Monday. |
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