Class HWDownload

Downloads hardware frames to system memory.

Inheritance
object
OptionQueryableBase
FilterContext
HWDownload
Implements
IAVPointer<_AVFilterContext>
Inherited Members
Namespace: FFmpeg.Filters.VideoFilters
Assembly: FFmpeg.dll
Syntax
public class HWDownload : FilterContext, IOptionQueryable, ILoggingContext, IAVPointer<_AVFilterContext>, IBufferSource, IBufferSink
Remarks

The input frames must be hardware frames, while the output frames are stored in system memory using a non-hardware pixel format.

Not all pixel formats are supported as output. If the required output format is not supported by the hardware download operation, an additional format filter may need to be inserted immediately after this filter to convert the frames to a supported format.

Methods

View Source

Allocate(string, FilterGraph)

Allocates an uninitialized HWDownload filter context.

Declaration
public static HWDownload Allocate(string name, FilterGraph graph)
Parameters
Type Name Description
string name

The name assigned to the filter context.
FilterGraph graph

The filter graph to which the filter belongs.
Returns
Type Description
HWDownload

A newly allocated HWDownload filter context.
Remarks

The returned filter is not initialized. Call Init() before using the filter.

View Source

Create(string, FilterGraph)

Creates and initializes an HWDownload filter.

Declaration
public static HWDownload Create(string name, FilterGraph graph)
Parameters
Type Name Description
string name

The name assigned to the filter context.
FilterGraph graph

The filter graph to which the filter belongs.
Returns
Type Description
HWDownload

An initialized HWDownload filter context.

Implements

Extension Methods