| Description | Hierarchy | Fields | Methods | Properties |
type TAdMediaDecoder = class(TAdPersistent)
Abstract video decoder class that can be implemented to provide a new video decoder class. Call the "RegisterVideoDecoder" procedure to register your new video decoder class.
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constructor Create(AReadProc: TAdMediaReadproc); virtual; |
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destructor Destroy; override; |
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function Decode: TAdMediaDecoderState; virtual; abstract; |
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procedure GetPacket(var Packet: TAdMediaPacket); virtual; abstract; |
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procedure OpenDecoder; virtual; abstract; |
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procedure CloseDecoder; virtual; abstract; |
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property MediaStreams: TAdMediaStreamList read FStreams; |
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property ReadProc: TAdMediaReadproc read FReadProc; |
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constructor Create(AReadProc: TAdMediaReadproc); virtual; |
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Creates an instance of TAdVideoDecoder. | |
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destructor Destroy; override; |
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Destorys the instance of TAdVideoDecoder. | |
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function Decode: TAdMediaDecoderState; virtual; abstract; |
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Tells the decoder to go on decoding. When data is needed, the specified callback should be called. ReturnsThe current decoder state See also
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procedure GetPacket(var Packet: TAdMediaPacket); virtual; abstract; |
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If Decoder returned "vdHasFrame", this method will fill information about the decoded buffer and a pointer to this buffer in the packet structure. | |
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procedure OpenDecoder; virtual; abstract; |
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Initializes the decoder and stores all streams, that were found in the "MediaStreams" property. | |
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procedure CloseDecoder; virtual; abstract; |
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Closes the decoder. | |
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property MediaStreams: TAdMediaStreamList read FStreams; |
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A list that gives an overview over all media streams that have been found in the media file. | |
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property ReadProc: TAdMediaReadproc read FReadProc; |
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Pointer to the read callback procedure | |