no sd mpg playback at all 2 machines

[pBS]

info for file in question from mediainfo:
General
Complete name : z:\mpg\The Daily Show With Jon Stewart\The Daily Show With Jon Stewart_2.mpg
Format : MPEG-PS
File size : 24.4 MiB
Duration : 24s 432ms
Overall bit rate : 8 381 Kbps

Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : Yes
Format settings, Matrix : Default
Duration : 23s 957ms
Bit rate mode : Variable
Bit rate : 7 958 Kbps
Nominal bit rate : 9 000 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.768
Stream size : 22.7 MiB (93%)

Audio
ID : 192 (0xC0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Duration : 24s 432ms
Bit rate mode : Constant
Bit rate : 256 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Stream size : 764 KiB (3%)

and from gspot...pretty detailed...

[mvallevand]

Your file is missing a mpeg pack header at the beginning. I found the first one at 0x7f2 and I cut up to it and it works.

Martin

[pBS]

now why would those be missing?
any idea as to how to fix? would remux fix?

yep, remux with ffmpeg fixed it...plays now without cutting..
had to add -f vob to make it work tho...

yikes, to do this on all my sd recordings...oh well, coulda been worse...at least i don't have to re-encode..

[pBS]

tried mpegcorrector and it didn't work...
tried vcdgear and it didn't work...
know any program that can change mpeg type without re-encode?
i think possibly would do the trick..

[imilne]

VideoRedo?

[mvallevand]

The file is not corrupt which is why it isn't a straight forward "fix". If sub doesn't want to adjust for it, I can whip a utility up.

Martin

[pBS]

that would be excellent cuz while ffmpeg is fast [600+fps] it's gonna take a while for as many sd recs as i have...
so far the only thing to fix is a remux with a -f vob so ffmpeg re-creates the pack headers..
[or discards the ones without one]

[mvallevand]

Ok, if sub tells us that he isn't going to change this, I will get something to you.

Martin

[sub]

To be honest, I dont see what I could change. If you cant connect the 'File Source (Async)' and 'MPEG2 Demultiplexer' in graphedit, then you're probably out of luck with the original files, and will need to correct the files so they play.

[mvallevand]

The graph would work if you pass it either to GBPVRParser.ax or the splitter as pBS said instead of the mpeg2 demux. I don't know if you could make that as an option for mpeg-ps files?

Martin