Project development, status, and guidance (29) Communication to and by parent bodies (0)
See section 7.1.
Conformance test set development (2)
14.1.97.1.1.1.1.1.88JCTVC-P0085 Conformance testing [C. Fogg (Harmonic), A. Wells, D. Le Gall (Ambarella)]
Conformance bitstreams testing some high-level aspects including HRD, are largely absent from the current test suite. It is proposed to add key combinations that will be relied upon in systems. The contributor asserted that bitstreams demonstrating correlation among the display timing elements (pic_struct, vui_time_scale, etc.) and bitstream splice users (time code, HRD) could assist implementers in the use of these elements.
For repeated pictures, the contribution suggested that the reconstructed .yuv file output by the reference decoder would contain the repeated pictures.
It was remarked that the "repeated picture" concept is more a display issue than a decoder output conformance issue, so it may not be desirable for the reference software to modify its output file content based on that, except perhaps in some special mode of decoder operation. Repetition is not a required output behaviour, and thus should not be tested for conformance.
It was agreed that having additional conformance bitstreams testing high-layer syntax (incl. SEI, VUI, parameter sets, HRD, etc.) would be highly desirable (and that the HM reference software may also need work in these areas).
It was asked whether the HM software parses all SEI messages that have been specified.
14.1.97.1.1.1.1.1.89JCTVC-P0276 Editor's proposed draft text of HEVC conformance testing [T. Suzuki, W. Wan, G. Sullivan] [late]
Latest update from the editors. Detailed review was not requested.
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