Class VideoStreamDecoder

Handles video stream decoding using FFmpeg, supporting hardware acceleration and metadata retrieval.

Inheritance
object
VideoStreamDecoder
Namespace: Evergine.Runtimes.Video.Helpers
Assembly: Evergine.Runtimes.Video.dll
Syntax
public class VideoStreamDecoder

Constructors

VideoStreamDecoder(string, AVHWDeviceType)

Initializes a new instance of the VideoStreamDecoder class.

Declaration
public VideoStreamDecoder(string videoPath, AVHWDeviceType hWDeviceType = AVHWDeviceType.AV_HWDEVICE_TYPE_NONE)
Parameters
Type Name Description
string videoPath

The path to the video file.
AVHWDeviceType hWDeviceType

The hardware acceleration device type.

Properties

CodecName

Gets the name of the codec used for decoding.

Declaration
public string CodecName { get; }
Property Value
Type Description
string

FrameRate

Gets the frame rate of the video.

Declaration
public float FrameRate { get; }
Property Value
Type Description
float

FrameSize

Gets the size of the video frame.

Declaration
public Size FrameSize { get; }
Property Value
Type Description
Size

PixelFormat

Gets the pixel format of the video frame.

Declaration
public AVPixelFormat PixelFormat { get; }
Property Value
Type Description
AVPixelFormat

Methods

Dispose()

Releases resources used by the decoder.

Declaration
public void Dispose()

GetContextInfo()

Retrieves metadata from the video context.

Declaration
public IReadOnlyDictionary<string, string> GetContextInfo()
Returns
Type Description
IReadOnlyDictionary<string, string>

A dictionary containing metadata key-value pairs.

Reset()

Resets the video stream to the beginning.

Declaration
public void Reset()

TryDecodeNextFrame(out AVFrame, bool)

Attempts to decode the next video frame.

Declaration
public bool TryDecodeNextFrame(out AVFrame frame, bool loop)
Parameters
Type Name Description
AVFrame frame

The output decoded frame.
bool loop

Whether to loop the video when it reaches the end.
Returns
Type Description
bool

True if a frame was successfully decoded, otherwise false.

Extension Methods