MPEG header error

zeetivo zeetivo at y...
Fri, 28 Dec 2001 17:45:40 -0000


I don't know if this will help, but I have used tyconvert and
tyc (linux version of tyconvert) with success. Can't help
with what your using because I've never used it.

Just search the group for tyc. Extract the raw ty streams.

If you don't have sucess with that post again and I'll 
try to help.

Good luck, it's really cool once you get things working.

Zee

--- In ExtractStream@y..., "junior15" <junior15@m...> wrote:
> I noticed nobody has replied to this message. I was wondering if 
> that was because nobody has seen these errors before and can't help 
> me or if somebody has seen them, but doesn't know what the are, or 
> if I just screwed something up and everyone thinks that I'm a 
> complete moron :)
> 
> I am very anxious to start burning my shows to VCD's, especially 
> since there are a couple of marathons in the next week that I would 
> like to archive. As I stated in an earlier email, I am somewhat 
> familiar with linux, am very familiar with windoze, am new to VCD 
> creation (but have learned quite a bit already and am willing to 
> learn), am willing to try almost anything, and will take any advice 
> anybody can give.
> 
> Even if nobody knows how to fix the error I'm getting, if anybody 
> knows of another way for me to get my shows to a VCD, please either 
> reply to this message or email me directly at 
> junior15@m... Currently, I can get ExtractStream to work 
> just fine. I can get the streams off of my Tivo, onto my Linux PC 
> in m2v/m2a format or in tystream format. I can convert the m2a
file 
> to an m1a file or to a wav file. That's about as far as I get. If 
> anybody would be willing to take some time to help me out, I'd 
> greatly appreciate it.
> 
> Thanks,
> Daniel
> junior15@m...
> 
> 
> --- In ExtractStream@y..., "junior15" <junior15@m...> wrote:
> > I was wondering if anybody else has seen this error when trying
to 
> > convert mpeg2 video (m2v) to mpeg1 video (m1v) on a Linux PC
> > 
> > **ERROR: Could not read YUV4MPEG header: bad header magic!
> > 
> > Here is the command that I run:
> > cat alias.m2v | mpeg2dec -o YUVh | mpeg2enc -s -r 24 -o alias.m1v
> > 
> > Also, when trying to use mplex to combine the audio and video 
> files 
> > (for one MPEG2 file) I get the following error:
> > 
> > [daniel@w... tivo]$ mplex -f 2 -m 2 -o Murder.mpeg2 Murder.m2[av]
> > INFO: mplex version 2.0.2 ($Date: 2001/09/30 17:13:23 $)
> > INFO: File Murder.m2a looks like an MPEG Audio stream.
> > INFO: File Murder.m2v looks like an MPEG-1/2 Video stream.
> > INFO: Found 1 video streams and 1 audio streams
> > INFO: Selecting VCD output profile
> > INFO: Scanning Video stream 0 for access units information.
> > INFO: VIDEO STREAM: e0
> > INFO: Frame width : 352
> > INFO: Frame height : 480
> > INFO: Aspect ratio : 1:0.6735
> > INFO: Picture rate : 29.970 frames/sec
> > INFO: Bit rate : 1470000 bits/sec
> > INFO: Vbv buffer size : 229376 bytes
> > INFO: CSPF : 0
> > INFO: Scanning Audio stream for access units information.
> > INFO: AUDIO STREAM:
> > INFO: Audio version : 1.0
> > INFO: Layer : 3
> > INFO: CRC checksums : no
> > INFO: Bit rate : 24576 bytes/sec (192 kbit/sec)
> > INFO: Frequency : 32000 Hz
> > INFO: Mode : 0 stereo
> > INFO: Mode extension : 0
> > INFO: Copyright bit : 0 no copyright
> > INFO: Original/Copy : 0 copy
> > INFO: Emphasis : 0 none
> > INFO: SYSTEMS/PROGRAM stream:
> > INFO: rough-guess multiplexed stream data rate : 1701600
> > INFO: Setting best-guess data rate.
> > INFO: Sectors = 16 Video delay = 15923 Audio delay = 15923
> > INFO: New sequence commences...
> > INFO: Video e0: buf= 47104 frame=000000 sector=00000000
> > INFO: Audio c0: buf= 4096 frame=000000 sector=00000000
> > INFO: Padding : sector=00000000
> > ++ WARN: Stream e0: Frame data under-run SCR=288609 DTS=288009 
> (data 
> > will arrive
> > too late to be useful)!
> > ++ WARN: Video e0: buf= 34053 frame=000081 sector=00000216
> > ++ WARN: Audio c0: buf= 2805 frame=000076 sector=00000029
> > ++ WARN: Padding : sector=00000013
> > 
> > {snipped a lot of the same thing}
> > 
> > ++ WARN: Stream e0: Frame data under-run SCR=3287160 DTS=3285003 
> > (data will arri
> > ve too late to be useful)!
> > ++ WARN: Video e0: buf= 44799 frame=001078 sector=00002878
> > ++ WARN: Audio c0: buf= 2076 frame=001002 sector=00000380
> > ++ WARN: Padding : sector=00000013
> > **ERROR: Too many frame drops -exiting
> > 
> > 
> > Here is the command that I'm running: 
> > mplex -f 2 -m 2 -o Murder.mpeg2 Murder.m2[av]
> > 
> > If anybody here has seen these errors and can help me figure them 
> > out, I would appreciate it.
> > 
> > Thanks,
> > Daniel
> > junior15@m...