Help with avi file on Divx player

posted in Video Codecs

Hi, I a total codec noob here. When I try to play certain avi file with Divx Player, it says “this file contains a track in an unknown format (code'''') format. You may need ot install a Directshow decoder for this video format in order to play this file.) What Do I have to do? reply

i have the same problem too.. how can we fix it? reply


It’s probably missing the codec. To find out which one use a diagnostics utility like gspot, avicodec, or mediainfo. Then search for the codec on the web. reply


Ok, i used mediainfo and checked the file. This is what I got:

Format : AVI
Format/Info : Audio Video Interleave
File size : 706 MiB
Duration : 2h 19mn
Overal bit rate : 707 Kbps
Writing application : VirtualDubMod (build 2366/release)
Writing library : VirtualDubMod build 2366/release
IAS1 : Russian / Russian

Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 2
Codec ID : H264
Duration : 2h 19mn
Bit rate : 570 Kbps
Width : 640 pixels
Height : 272 pixels
Display aspect ratio : 2.35
Frame rate : 25.000 fps
Resolution : 12 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.131
Stream size : 569 MiB
Writing library : x264 - core 54 rev-606
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x1:0x131 / me=hex / subme=5 / brdo=0 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / chroma_qp_offset=0 / slices=1 / nr=0 / decimate=1 / mbaff=0 / bframes=2 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / bime=0 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=570 / ratetol=1.0 / rceq='blurCplx^(1-qComp)' / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30

Format : MPEG Audio
Format version : Version 1 / Layer 3
Codec ID : 55
Codec ID/Hint : MP3
Duration : 2h 19mn
Bit rate mode : CBR
Bit rate : 128 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 127 MiB

How do I find out what is missing? reply


The fourcc says H264. I don’t know of any standalone decoder for it, but you can get ffdshow-tryouts. The package installs a lot of codecs, however if all you need is H.264, uncheck all the boxes during install except H.264 (you’ll get to it at the window where it lists the video codecs). reply


I installed the H.264 codec, but it still does not work. Do I have to link Dixv player to the codecs? or is there any other player that I can try? reply


I’m surprised it didn’t work! Did you try Windows Media Player? (that’s where it should work with ffdshow) If all else fails try VideoLan. reply


The video works with Window Media Player, but it does not show the .srt subtitles. What subtitles formats does windows media player support? reply


Hi, anonymous.
Nice job! Your suggested link is really useful for me.
Thanks a lot. reply


(to Garrison)
I don’t have much experience with subtitles. According to
you might want to check the avi is the exact same name as the srt file.
If that doesn’t work try Media Player Classic. When you click file, open (NOT file, quick open), you get to pick both the video file and the subtitle file. MPC is a very clean (single file - no install) so you can just unzip it on your desktop and run it (and delete it if you don’t like it). VideoLan (link at the top of the page) should also be able to handle subtitles.
If all else fails try vobsub as in the link I posted. I don’t have any experience with it so I don’t guarantee results. reply


Hi, for anyone else who is having this problem I found a very easy solution:

to find out what audio codec you need, right click on the divx video you want to play, and go into 'Audio Tracks'. the type of track that appears will show the codec in brackets [e.g. 'Dolby Digital (AC3/A52)'].
then simply go onto the drop down menu for downloads at the top of this page, select 'Audio Codecs', then pick the relevant codec (in this case AC3) to download; install, refresh the page and bingo! works as easy as that. reply


@ruthysunshine Well how would you do that if it was the web player to complain about that? Unfortunately there is no option that would allow to “find out what audio codec you need” as you described. Also I am on a mac with all the codecs needed to play those that would not otherwise play including AC3/A52. Anyone got a working fix they have already tried? (Should I find one myself will come back to share it also for sake of record). Thanks! reply


PS: Just to clarify something that may have not come across (my bad), I am not trying to play a local video file but one on a web page that serves it in divx format and I am using DivX web player in Safari 5.1.2 on OS X 10.6.8 reply


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