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  #1  
Old 10-29-2010, 02:40 AM
mdwright1032 mdwright1032 is offline
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Default Mp4 video work on cowon J3?

I am expecting my unit next week. I have a bunch of mp4 movies that i downloaded off of youtube. Will these work or does the cowon have trouble with mp4?
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  #2  
Old 10-29-2010, 05:50 AM
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search is your friend, my friend. (although i didn't use the search, i only looked at the front page of this subforum)


http://anythingbutipod.com/forum/showthread.php?t=58572
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Old 10-29-2010, 11:57 AM
mdwright1032 mdwright1032 is offline
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Quote:
Originally Posted by deadohiosky View Post
search is your friend, my friend. (although i didn't use the search, i only looked at the front page of this subforum)


http://anythingbutipod.com/forum/showthread.php?t=58572
1. I used the search and nothing

2. That did not answer my question. It's related to a different mpeg version. I

Cowon says in their description mp4 player but on the video code's supported it does not list mp4. Which one is it?
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Old 10-29-2010, 12:11 PM
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short answer: probably not.

longer answer: it depends.

the J3 only supports a specific kind of h.264 profile. the baseline profile. you can read about this here

but the common youtube video will probably use another profile, so no, you would need to re-convert it.
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Old 10-29-2010, 12:30 PM
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The documentation tells only AVI container not MP4, for the video the codecs are from the MPEG4-ASP family (xvid, Divx, mpeg4), not H264, and finally support for AAC audio seems unofficial and not complete. This blogger says he succeed with some mp4 files, but if you read comments they seem to be ASP not AVC encoded videos.
When you'll get your device, please try AVC-H264 codec (baseline profile) with AAC audio on MP4 container and tell us if it plays. I haven't find an extensive post on which video combinations work or not.
I do not believe AVC-AAC-MP4 video will work, because to support AVC you must pay a licence. You will not silently implement AVC to face a patent suit in the end. So if AVC was on board they would have publicize this feature.

[Edit] You can use SD 320x180px video files from the CNET.com video podcasts. They are valid AVC/H.264 baseline+AAC MP4 files. They play well on a Sony Walkman for example and I think are good to test your player abilities.

Last edited by meetooman; 10-29-2010 at 12:47 PM.
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Old 12-01-2010, 06:41 PM
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CNET MP4s do play on the J3, I just tried.

Code:
General
Complete name                    : D:\cnet_2010-11-29-175503-4077-3-0-0.1100.mp4
Format                           : MPEG-4
Format profile                   : Base Media
Codec ID                         : isom
File size                        : 27.0 MiB
Duration                         : 3mn 47s
Overall bit rate                 : 992 Kbps
Performer                        : CNET TV
Screenplay by                    : Castfire 2010-11-29 21:09:12 (v0.1.7.6066)
Genre                            : News/Technology
Encoded date                     : UTC 1970-01-01 00:00:00
Tagged date                      : UTC 1970-01-01 00:00:00
Cover                            : Yes
tven                             : f24da3e19ec757849858eb192bdc8756

Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : Baseline@L3.0
Format settings, CABAC           : No
Format settings, ReFrames        : 1 frame
Codec ID                         : avc1
Codec ID/Info                    : Advanced Video Coding
Duration                         : 3mn 47s
Bit rate mode                    : Variable
Bit rate                         : 896 Kbps
Width                            : 640 pixels
Height                           : 360 pixels
Display aspect ratio             : 16/9
Frame rate mode                  : Constant
Frame rate                       : 29.970 fps
Resolution                       : 24 bits
Colorimetry                      : 4:2:0
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.130
Stream size                      : 24.3 MiB (90%)
Language                         : English
Encoded date                     : UTC 1970-01-01 00:00:00
Tagged date                      : UTC 1970-01-01 00:00:00

Audio
ID                               : 2
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format version                   : Version 4
Format profile                   : LC
Format settings, SBR             : No
Codec ID                         : 40
Duration                         : 3mn 47s
Bit rate mode                    : Variable
Bit rate                         : 91.3 Kbps
Channel(s)                       : 2 channels
Channel positions                : L R
Sampling rate                    : 44.1 KHz
Resolution                       : 16 bits
Stream size                      : 2.48 MiB (9%)
Encoded date                     : UTC 1970-01-01 00:00:00
Tagged date                      : UTC 1970-01-01 00:00:00
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  #7  
Old 01-01-2011, 03:26 AM
karuna karuna is offline
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Default mp4-tipard

I've already posted my findings earlier and now only confirm that one can use the tipard video converter to convert video files to mp4 (h264/mpeg-4 AVC Video) for j3.
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  #8  
Old 01-01-2011, 06:56 AM
rohit3192 rohit3192 is offline
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CNET video as linked by Dfkt working fine but videos encoded for Fuze+ are stuttering (if that is correct word).Though .mp4(aac+avc,320X240) videos working flawlessly on Fuze+.
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