Problem with recorded TV compression (1 Viewer)

[karpago]

When I use the Compress option from Mediaportal 2.0.4. to convert a recorded TV program from dvr-ms format to mpeg, the output file has a different resolution from the original one. In fact, while the dvr-ms is 720x576, the resulting mpg is 544x576.
Could someone help me?

Thanks,
Carlo

 

[Taipan]

while the dvr-ms is 720x576, the resulting mpg is 544x576.

The process to "convert" a dvr-ms file into an mpg file simply removes the dvr-ms wrapper from the original mpg stream - it does not change the parameters of the mpg file at all.

What are you using to determine the HxV pixel ratio of these files? I would suggest that whatever you are using is not reading the mpg header data correctly?

 

[karpago]

while the dvr-ms is 720x576, the resulting mpg is 544x576.

The process to "convert" a dvr-ms file into an mpg file simply removes the dvr-ms wrapper from the original mpg stream - it does not change the parameters of the mpg file at all.

What are you using to determine the HxV pixel ratio of these files? I would suggest that whatever you are using is not reading the mpg header data correctly?

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I use many tools, like Windows Media Player and VirtualDUB, and for all the resolution is 544x576.

Many thanks

 

[diehard2]

Hi karpago,

What TV card are you using?

Would it be possible for you to post an example file. say 30 seconds of video before and after conversion?

 

[karpago]

My TV card is unfortunately :-( a Pinnacle PCTV300i.

Following your advice I tried to record few seconds of TV and compress it. The mpeg resulting file was 704x576.

So, I tried again to re-compress a big recorded program (about 4GB) to verify if something was changed, but I obtained again a 544x576 mpeg file. The source file format dvr-ms is the same, except of the size.

I'm thinking it may depend by the size of the source file.

Many thanks