Best Video Format To Encode To?


fancellu

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Nov 9, 2006
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What is the best video format for the gp2x, i.e. small, easy for cpu to play?

I know it can play divx and xvid.

Which is easier for it to decode?

Am playing about with PocketDivxEncoder, very nice.
 
divx or xvid is almost the same. I think a video with 320*240 res and MP3 in 128Kbit would be great and the file is less than 350Mo for a movie
 
divx or xvid is almost the same. I think a video with 320*240 res and MP3 in 128Kbit would be great and the file is less than 350Mo for a movie

By the way, took a 113 MB quick time file and took it down to 3MB divx, still looks the same on my gp2x!!

Did similar with a 719MB avi to 190MB using PocketDivxEncoder, now plays even smoother, even in save mode.

I love the fact that it can play .srt subtitles, I have tonnes of old school KungFu vids so glad I can get the subtitles on my new toy.
 
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divx or xvid is almost the same. I think a video with 320*240 res and MP3 in 128Kbit would be great and the file is less than 350Mo for a movie

By the way, took a 113 MB quick time file and took it down to 3MB divx, still looks the same on my gp2x!!

Did similar with a 719MB avi to 190MB using PocketDivxEncoder, now plays even smoother, even in save mode.

I love the fact that it can play .srt subtitles, I have tonnes of old school KungFu vids so glad I can get the subtitles on my new toy.

Personally, when using PocketDivX encoder I set it to VHQ (Very High Quality)Xvid (avi). Just click on advanced options on the bottom of the program. and check VHQ and Xvid. The file sizes tend to be smaller than DivX and they play flawlessly on the GP2X. On average I can take a 700+ mb full scale movie and after conversion have a 198 mb file or less, with great quality. ;)
 
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I use SUPER for encoding. What would you suggest for the the video bitrate? and fps?
 
I like having my sound as ogg, not too much more processing, but saves a lot of space.
 
I use Virtual Dub and here's the main setting I find give me the best results:

320x240 Resolution
XviD (I find the files are smaller and better quality than divX)
512 bitrate
MP3 at 56K 24000hz Stereo
 
I use standard MPEG4 as opposed to XviD or DivX.

First I prepare.
(dumo audio to wav) (mplayer <file.avi> -vc null -vo null -ao pcm:fast)
(dump video to lossless) (mencoder <file.avi> -nosound -ovc lavc -noskip -vf harddup -lavcopts vcodec=huffyuv:format=422p -o <outfile>) -- [file.avi can be dvd://#title#, if ripping from dvd].

Audio: MP3-VBR, downsampled to 24k (encoded with "lame --resample 24 -v -h <infile> <outfile>")

Video: Encoded with mencoder (mencoder -nosound -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:vmax_b_frames=0:vb_strategy=1:precmp=2:cmp=2:subcmp=2:preme=2:qns=2:vpass=#:vbitrate=# -vf scale=#:#,harddup -noskip -ofps # -o <outfile.avi> <infile.avi>)
Then mux the video and audio streams togehter, with (mencoder -ovc copy -oac copy -audiofile <outfile.mp3> <outfile.avi> -noskip -mc 0 -o <muxed.avi>)

I always do two passes, rarely change the FPS, but it depends. And what I scale to is also variable, as I like to preserve my aspect ratios. Bitrate.... I don't really have a rule for that, I just choose what I think is right for whatever it is I am encoding. I do not always use qns, as it really effects the encoding time.
 
For the best results I would go for:

320*240
Xvid
266 Bitrate (2 pass!)
96k 44000Hz

These settings will average out a 60/70 meg file with pretty much perfect quality

The 266 will look like ass on a single pass but if you do the 2 pass it'll look just like the source. Also I would suggest not to put the sound quality on too low as you really do miss out on something .
 
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