android
  #1  
Old 08-18-2008, 05:50 PM
Vahkiti Vahkiti is offline
Junior Member
 
Join Date: Feb 2008
Posts: 50
Default n00b Friendly MPEG Conversion For Rockbox MPEG Player

http://www.mux.am/power/

n00b friendly MPEG conversion, just enter a url to the video you want, Set the output format to MPEG 1/2, The dimentions to 220x166, video bitrate to 720, and the framerate to anywhere from 22 to 24. Enable MPEG frameskip and limit fps in the player and your done! Just wait for it to convert, download it and your set! MPEGs for n00bs by Vahkiti!
Reply With Quote

Advertisement [Remove Advertisement]

  #2  
Old 08-19-2008, 06:34 AM
Llorean Llorean is offline
Rockbox Developer
 
Join Date: Dec 2006
Posts: 397
Default

220x176 is the actual resolution of the player. And 720kbps is way too high of a bitrate unless they have their settings really messed up. At 220x176 you should be able to get decent quality video in the 200-500kbps range depending on the source material.
Reply With Quote

  #3  
Old 08-19-2008, 01:18 PM
Vahkiti Vahkiti is offline
Junior Member
 
Join Date: Feb 2008
Posts: 50
Default

720 was the suggested rate for YouTube videos with the SUPER converter. But that's besides the point, N00B FRIENDLY CONVERSION!!!!
Reply With Quote

  #4  
Old 08-19-2008, 01:29 PM
dfkt's Avatar
dfkt dfkt is offline
Moderator
 
Join Date: May 2006
Location: Vienna, Austria
Posts: 15,330
Default

220x165 is a correct 4:3 (1:1.33) aspect ratio... so the 166px setting should look less stretched/distorted than 220x176 (1:1.25) for standard fullscreen material. Not that it matters much on a tiny screen like that.

For 16:9 widescreen material (1:1.77, or 220x124) the screen is way too small in any case, I believe.
__________________
Please don't PM me with questions that can be answered in a forum thread. Don't be an idiot.
My Gear and Reviews | My RMAA Tests | IRC: #anythingbutipod on Freenode | Last.fm | Album Art Exchange | Rockbox | Replaygain
Reply With Quote

  #5  
Old 08-19-2008, 01:47 PM
Llorean Llorean is offline
Rockbox Developer
 
Join Date: Dec 2006
Posts: 397
Default

Well whoever suggested 720 with SUPER probably wasn't setting other quality affecting settings properly. Just picking the right macroblock decision algorithm and similar settings can make a really big difference on quality. It's pretty easy to both lower the filesize *and* increase the quality compared to a baseline run of an mpeg 2 encoder with bad defaults (as many/most have).

As to the resolution, yes, 220x166 is right for 4:3 content bound by the screen edges. Some people prefer to encode slightly bigger than the screen instead of slightly smaller since this will have a trivial effect on performance and size, but may look nicer to them. As well as you've noted it's completely wrong for anything widescreen. My point was merely that the screen size is actually 220x176, which is what I said. I made no attempt to claim that it was the right resolution for encoding either sort of video at.

I offered the screen size because I don't want to see bug reports of people saying "the player is shrinking my video" when a "noob" guide doesn't tell them they're making their video smaller than the screen. It's fine to tell them 220x166 is a good size for 4:3 content, but be clear it'll be slightly smaller than the screen.

And I offered the bitrate information because people frequently claim Rockbox videos are too big, and I certainly don't find that the case (I encode 320x180 content for my Gigabeat and even with very, very few noticeable artifacts it's rarely over 480kbps for the video).
Reply With Quote

  #6  
Old 08-19-2008, 03:19 PM
Vahkiti Vahkiti is offline
Junior Member
 
Join Date: Feb 2008
Posts: 50
Default

Ok, all besides the point, it is easy unlike most recomended, it's free and softwre free so you can do it on a public computer unlike the SMC, and 220x166 is just for the Sansa e200. I do not endorse that size setting for any other player Sandisk or not. Also, 220x166 is the aspect ratio that Rockpaint saves it's images as well.
Reply With Quote

  #7  
Old 08-20-2008, 06:21 AM
Llorean Llorean is offline
Rockbox Developer
 
Join Date: Dec 2006
Posts: 397
Default

I think "making sure people realize that it's supposed to work this way and not a bug" is never beside the point.
Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -5. The time now is 04:04 AM.