MPEG 2 Reference Decoder

[Dave1024]

Hi,

please provide the link for a reference mpeg 2 video decoder[input m2v output .yuv].Since i would compare my output with the reference one to find out the quality of both.


Thanks
Dave

[pandy]

mpeg2dec from http://www.mpeg.org/MPEG/video/mssg-free-mpeg-software.html

[Dave1024]

I want fixed point decoder. plus reference output to check the conformence. so that the reference output is taken to fix my programming bugs.

Thanks
Dave

[hank315]

mpeg2dec is THE reference decoder.
If you want to test your decoder it has to comply with mpeg2dec, it's the "official" implementation of the ISO 13818-2 standard.

I don't know what a fixed point decoder is, do you mean the (integer) implementation of the IDCT?
You can try DGDecode, it has various methods for IDCT, source code and dll are available.

[drmpeg]

mpeg2dec has both fixed and floating point versions of the IDCT.

[Dave1024]

Hi,

Thanks for the replay.

Let me know one thing. I would like to test my decoder modules like entroppy coding, sequence parsing, IDCT, field and frame processing etc

For this will i get conformance streams as per the standard?

Please provide the links if any

Thanks
Dave

[hank315]

Some streams can be found here:
http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_IEC_13818-4_2004_Conformance_Testing/
(http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_IEC_13818-4_2004_Conformance_Testing/)
Just a question, what's your goal, what do you want to achieve?
There are already a lot of free open source MPEG2 decoders available.

[Dave1024]

Hi,

can u list out what are the major difference b/w MPEG1 and MPEG2. Why i ask this question is, to know MPEG2 decoder should support MPEG1 streams or not.
- A backward compactibility exists or not

Thanks
Dave

[pandy]

at least few differences - for example H.262 support Interlace