Decoder Buffer Requirements - Decoder Buffer Requirements - 3.0 English - PG447

H.264/H.265/JPEG Video Codec Unit 2 (VCU2) Solutions LogiCORE IP Product Guide (PG447)
Document ID
PG447
Release Date
2026-03-06
Version
3.0 English
The Decoder input and output requirements are shown in the following table.
Table 1. VCU2 Decoder Buffer Requirements
Requirement Description
Input Buffer
Number of Buffers >=1
Contiguous No
Alignment 0
Size Any > 0
Output Buffer
Number of Buffers

Stream dependent, provided by the following Control Software API calls:

For AVC
AL_AVC_GetMinOutputBuffersNeeded (Control Software API call)
For HEVC
AL_HEVC_GetMinOutputBuffersNeeded (Control Software API call)
Note: Dimension, chroma-mode and bit-depth are in stream-settings.
Contiguous Yes
Alignment 32
Size stride * slice-height * chroma-mode.
Note: Stride and slice-height should be 64-aligned.