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ref_iface_IVDXVideoDecoderModel_GetRequiredCount
VirtualDub Plugin SDK 1.2
IVDXVideoDecoderModel interface
Returns the number of source samples required to decode the desired frame, based on the current decoder state.
int GetRequiredCount();
This method is not thread-safe.
Errors may not be returned from this function (see SetError()).
A return value of zero is possible if the frame is already resident in an internal frame buffer.
This is used in smart rendering mode by the encoding engine to determine if a frame can be copied in Direct mode or if the engine must drop back to full processing mode.
Copyright (C) 2007-2012 Avery Lee.
Setting up your development environment
Conventions
Plugin initialization
Dynamic loading
Reference counting
Using CPU extensions
Introduction
What's new
Breaking changes
Gotchas
Deprecated features
Migrating from the old Filter SDK
Programming model
Handling bitmaps
Creating a video filter
Setting filter parameters
Processing video frames
Managing filter data
Creating time-varying filters
Handling aspect ratio
Prefetching multiple source frames
Handling multiple sources
Making a filter configurable
Scripting support
CPU dependent optimization
VDXA index omitted
Getting started
Writing the module entry point
Creating a video filter
Adding configurability
Adding script support
Introduction
What's new
Autodetect
Direct mode
Video frames vs. samples
Video decodint model
Video decoder