ccm1.mpg is an MPEG-1 bitstream created for the Video Conformance Testing AHG,
for the "ID = 34" test. 

Test Bitstream #34:

Specification: A bitstream in which the output of the non-saturated
integer number mathematical IDCT f ' (x, y),  as defined in Annex A of
ISO/IEC 13818-2,  has large absolute values but values within the range
[-384, 383] for each coded block.  If decoder under test uses the same
IDCT for decoding ISO/IEC 11172-2 and ISO/IEC 13818-2  bitstreams,
then this test bitstream can be implemented as an ISO/IEC 11172-2
constrained parameter bitstream.

Functional stage:   IDCT

Purpose:  Check that IDCT decoder accuracy meets the requirements
defined in Annex A.  The peak error for a compliant decoder shall be
less or equal to than 2.  For blocks where f ' (x, y) has values within
the range [-300, 300],  decoders that have a peak error larger than 1
may not be compliant, according to the IEEE 1180 IDCT specification.


Sampling dimensions	16 x 16 @ 29.97 Hz 
picture structure	I P P P P... (one I and 128 P)

Bitstream file		ccm1.mpg
Reconstructed frames	ccm1.decoded
Decoding trace		ccm1.trace

frame format		4:2:0 frame ("display" order) 8 bit

                       width
                +---------------+
                |               |
                |      Y0       | height
                |width/2        |
                +-------+-------+
                |  Cb0  | height/2
                +-------+
                |  Cr0  | height/2
                +-------+-------+
                |               |
                |      Y1       |
                |               |
                +-------+-------+
                |       |
                  etc...


Best regards,

Sorin

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Sorin C. Cismas
Tel:	(408) 773-8310			CompCore Multimedia, Inc.
Fax:	(408) 773-0432			1250 Oakmead Parkway, Suite 301
E-mail:	sorin@compcore.com		Sunnyvale, CA  94086
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