Re: VirtualDub won't play file - other progs will
- From: Terry Pinnell <terrypin@xxxxxxxxxxxxxx>
- Date: Sat, 08 Sep 2007 19:02:45 +0100
"Ken Maltby" <kmaltby@xxxxxxxxxxxxx> wrote:
Hi Ken.
"Terry Pinnell" <terrypin@xxxxxxxxxxxxxx> wrote in message
news:6412e3ttphbavvmhr6ir1qjqci05l4hpj2@xxxxxxxxxx
I downloaded my first TV program this morning (an episode I missed of
the UK BBC1 comedy sitcom 'Outnumbered'). It's a 224 MB file that
GSpot reports without errors as far as I can see. But it won't play in
VirtualDub 1.6.19. I immediately get "Warning: Nothing to output.
Bframe decoder lag"
Then, when I scroll forward I can see the video frames, but when I
tried the Play button again I get: "No audio decompressor could be
found to decompress the source audio format. (source format tag:
0050)"
Yet it plays fine in all my other players (WMP10, PowerDVD, VLC, Nero
ShowTime, etc).
I've posted this in the specialised VirtualDub forum, but maybe
someone here can suggest a likely cause please? Always regarded
VirtualDub as one of my most trustworthy progs!
--
Terry, West Sussex, UK
What format did GSpot have for the video, it appears
to be MPEG. Plain old VDub didn't do MPEG, I use
VDubMod which will input MPEG and there is a VDub-
MPEG available,as well.
A source audio format of 50 is usually AC3.
Luck;
Ken
It's an AVI. Here's an extract from GSpot:
--- Container Information ---
Base Type (e.g "AVI"): AVI(.AVI)
Subtype (e.g "OpenDML"): OpenDML (AVI v2.0),
Interleave (in ms): 80
Preload (in ms): 504
Audio alignment("split across interleaves"): Aligned
Total System Bitrate (kbps): 0
Bytes Missing (if any): 0
Number of Audio Streams: 1
--- Audio Information ---
MPEG Stream ID (e.g. "0xbd"):
MPEG VOB file Substream(e.g. "0x80"):
Audio Codec (e.g. "AC3"): 0x0050 MPEG-1 Layer 2
Audio Codec Status (e.g. "Codec Is Installed"): Codec(s) are Installed
Audio Sample Rate (Hz): 48000
Audio Bitrate(kbps): 256
Audio Bitrate Type ("CBR" or "VBR"): CBR
Audio Channel Count (e.g. "2" for stereo): 2
And, as mentioned, the file plays in all my players - except
VirtualDub
VirtualDub says:
Audio stream
-----------------
Sampling rate: 48000Hz
Channels: 2 (Stereo)
Sample precision: N/A
Compression: Unknown (tag 0050) <----
Layout: 21944 chunks (0.50s preload
Length: 73165 samples (29:15.96)
Min/avg/max/total frame size: 2304/2560/16128 (54874K)
Data rate: 256 kbps (0.93% overhead)
Finally, after rendering to a DVD-ready MPEG (about 920 MB), GSpot
says:
Container
------------
MPEG-2 Program Stream << { 1 vid, 1 aud }
Sys Bitrate: 10080 kb/s VBR
Audio
-------
Codec MPEG-1 Layer 2
Info 0xc0:48000Hz 224 kb/s tot Stereo
I've since downloaded several similar AVI file (TV episodes as
binaries from Usenet), and they gave exactly the same problem in
VirtualDub.
VirtualDubMod gave same result too.
--
Terry, West Sussex, UK
.
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