In the decoder, after parsing the syntax element all_layers_idr_aligned_flag, the value is allocated to a wrong variable as follows

READ_FLAG(uiCode, "all_layers_idr_aligned_flag" ); vps->setCrossLayerIrapAlignFlag(uiCode);

It should be assigned as below.

READ_FLAG(uiCode, "all_layers_idr_aligned_flag" ); vps->setCrossLayerAlignedIdrOnlyFlag(uiCode);

When bit-depth scalability is enabled with 1x spatial scalability, SHM-5.0 software does not match the specification of the resampling process in section H.8.1.4 of SHVC working draft 5.

SHVC draft 5 section H.8.1.4 specifies that when the base layer and enhancement layer have the same picture sizes, same internal bit-depths, and zero scaled reference layer offsets, the inter-layer reference picture ilRefPic is set equal to the decoded reference layer picture rlPic.

However in SHM-5.0, when the base layer and enhancement layer have the same picture sizes and zero scaled reference layer offset, the inter-layer reference picture ilRefPic is set equal to the decoded reference layer picture rlPic without checking the bit-depth difference of BL and EL. Consequently, SHM-5.0 does not support bit-depth scalability with 1x scalability in the inter-layer prediction process.

This bug was reported in JCTVC-Q0130, and two implementations of the bug fix are in the software attached in JCTVC-P0130-v2 with the following two macros:

• BIT_DEPTH_AND_1X_SCALABILTY_FIX1
• BIT_DEPTH_AND_1X_SCALABILTY_FIX2

I came across the following type in the SHVC spec:

H.8.5 Decoding process for coding units coded in inter prediction mode The specifications in subclause F.8.5 apply with the following addtions.

This should be: The specifications in subclause F.8.5 apply with the following additions.