Ac3Decoder - About

WHAT IS IT?

Basicly its VOBtoWAV, just try it. This source is based on the previous ac3decode v0.05 from the author of mpeg2avi. Dont forget that you can also use DECODEVOB to demux a VOB file into its ac3 components and decode them after much faster, as decodevob will demux an ac3 in as little as 5mins.

WHERE IS IT?

Its here, just download zip and run the program , or download the zipped source code is the full source code to the program. The code is released in free source form because I like releasing source codes, and to any one else that doesnt, whats the problem? scared of lamers ripping you off? Thats just FUD, have the guts guys, release the source, then at least things can be shared/fixed to the better. The original 0.5 version can be found here too ac3dec05.zip

WHAT NOW?

Run it with "ac3dec file.vob outfile.wav" and select the code in the gui and hit OK, then it will convert the vob to the new file. At any time you can hit 'Q' to stop it' ac3dec.exe is a Win32 command-line application. It must be run from a DOS-box.

If the output-filename is supplied, ac3dec will create a WAVE file. Otherwise, the decoded audio samples are sent to a waveOut device. AC3DEC can only play AC3 bitstreams. AC3 Bitstreams may be in raw form (*.AC3) or part of an unencrypted VOB file. AC3DEC does not play MPEG-audio streams.

Playback control is very limited : 'PAUSE' and 'QUIT'

C:\WINDOWS>ac3dec -h
A(3 V0.8.18 (c) 2000 (www.ac3dec.com, built Jun 27 2000 03:57:15)

 -pcmwav FILE  - output data to a PCM WAV file without the Chooser
 -wav FILE     - output data to a WAV file
 -savecodec X  - save codec definition to file X from Chooser
 -loadcodec X  - load codec definition from file X
 -pcm          - automaticly select PCM output with no Chooser Dialog
 -seek #       - seek to VOB LBA position (ie which sector)
 -seekmb #     - seek to file Megabyte position
 -insertms #   - insert X ms amount of silence at the start
 -allvobs      - span over multiple VOB files automaticly
 -substream 0x## - only decode X subtream (hexformat, 0x81)
 -overwrite    - overwrite output wav file without asking.
 -blocksize    - file writing buffer size.
 -gain #       - adjust global output gain (1..100) percent
 -gain2 #      - adjust global output inverse-squared gain (1..500) percent
 -gaincenter # - adjust centre channels gain level (1..500)
 -gainrear #   - adjust rear channels gain level
 -gainlfe #    - adjust lfe channel gain level
 -zerocenter   - silence centre channel
 -zerorear     - silence rear channels
 -zerolfe      - silence lfe channel
 -length       - limit the length of the decode to X seconds
 -info         - show VOB summary information
 -44100        - convert the 48000 stream to 44100 allowing other codecs/formats

   FUTURE TODOs/Features that are NOT implemented in this release!!
 -aac FILE     - output data to an AAC format file
 -out5.1       - output stereo + stereo_rear + LFE + Center files
   ------------ realtime playback keyboard commands -----------
   0 - 9    :  switches substreams in real time (0x80 to 0x89)
   A,Z      :  + or - Gain Level
   S,X      :  + or - Gain Rear Level
   D,C      :  + or - Gain Center Level
   F,V      :  + or - Gain LFE Level
   W        :  Zero Rear Gain Level
   E        :  Zero Center Gain Level
   R        :  Zero LFE Gain LevelNo error - Couldn't open file -h

C:\WINDOWS>