#2 Riff CDXA DirectShow filter for XCD
RIFF/CDXA Source filter
-----------------------
This is a DirectShow Source filter for parsing RIFF/CDXA
file and playing it on the fly (from a Mode2 CD)
(Original code from M$ DX8.1 SDK sample:
samples\multimedia\dshow\filters\asynch)
Modified to RIFF/CDXA parsing by Avi Halachmi
(avihpit@yahoo.com)
DShow stuff by DeXT (de_xt@hotmail.com)
last modified: 03-JUN-2002
version: test6b
functionality:
- allow any direct show based media player to play
mode 2 form 2 files right from the CD
(i.e. VCD, SVCD and files burned using
mode2cdmaker tool [aka "DeXT's tool"])
--------------- WARNING WARNING WARNING -----------------
----
this is alpha software. this means that if you start
storing files using mode2cdmaker now,
THE BURNED FILES MAY NOT BE COMPATIBLE
WITH FUTURE VERSIONS OF THIS STORAGE
FORMAT.
THE FORMAT IS NOT FINALIZED YET. (and error
correction hasn't been added yet)
although it's possible to use these filters to read 800M
files directly from the cd and play them,
you should NOT by any means start archiving your files
using this format.
these filters are only here for testing of playback, co-
existance with other filters,
smoothness of playback etc.
the reason you should not start archiving your clips
using mode2cdmaker is that there's
no error correction. this means that if your cd is
scratched, and
important (=headers/indexes) parts of the file are lost,
you will NOT be able to
play your file.
mode2cdmaker stores the files as standard m2f2 files
on iso 9660 filesystem.
this mode offers no error correction. what is lost is lost.
the final target is to add some error correction facilities,
and then use the tool
to make an image. the filter would also be modified to
use these
error correction facilities when errors are detected.
atm though, THERE IS NO ERROR CORRECTION AND
YOUR FILE MIGHT NEVER PLAY AGAIN IF THE
CD HAS SCRATCHES WHERE IT MATTERS.
be warned.
-------------------------------------------------------------
Usage:
0. uninstall any previous version, if you had one
installed
(although it seems to working also without this
stage).
1. click on the install.bat file to register the xcdsrc.ax
filter (shown as 'RIFF/CDXA Source')
2 for VCD/SVCD playback only, skip to stage 5
3. create a RIFF/CDXA cd image using mode2cdmaker
that contains at lease one media file.
The tool can be obtained from the following sites:
http://webs.ono.com/de_xt (official site)
http://www.wsu.edu/~benp/mcfcd.htm (under the
name 'Dext's Mode2 CD Maker')
http://www.doom9.org (Download/Support
utils/Show me more)
4. burn the image (or use daemon tools to mount it)
5. run your favorite player and open a file from the new
CD. it should play.
6. to remove this filter, use uninstall.bat
formats tested: AVI, OGG, MP3, MPEG-1/2 (VCD &
SVCD too), MOV (QuickTime 3 only)
formats known NOT to work: ASF, WMV, WMA, MOV
(QuickTime 4/5), RM(*), MP4(*)
SVCD playback may be a bit skippy since the bitrate
is usually high, and we didn't add buffering yet.
(*) these formats MIGHT work in future or with special
software support
Credits:
Many thanks to all the people who have helped us and
made our life easier.
Specially to Ingo, some parts of the filter code are
inspired on his work on the MediaXW project.
Big thanks go to the MCF team who was the 1st to
define a spec for 800M files on a cd (MCF-CD project)
Changelog:
----------
test6b:
- fixed install script to work on Win9x/Me
test6:
- VCD and SVCD playback support added
- filter rewrite (for portability and future support for error
protection)
- improved media detection
- file name changed from asyncflt.ax to xcdsrc.ax
- registry system modified to override ms VIDEO CD
Source
(which doesn't read s/vcd correctly, and may
introduce conflicts.
the uninstall script put back the original registry
values)
test5:
- added automatic media detection
- internal cleanup
test4:
- added custom builds for AVI/OGG content
- enhanced filter multithreading compliance
test3:
- the filter no longer will load the entire file into memory
test2b:
- fixed registry compatibility problem with VCD/SVCD
test2:
- added RIFF/CDXA media type
- set custom GUID for filter
test1:
- first release, based on M$ Async File Source
sample filter
- added RIFF/CDXA parsing code
Logged In: NO
..
Logged In: NO
fine