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The MovieLoader class is used to load image data from a movie file.

警告: For MAXON API media input and output see Media Sessions Manual .

Allocation/Deallocation

A MovieLoader can be created with the usual tools:

MovieLoader::Alloc() : Creates a new MovieLoader 对象。
MovieLoader::Free() : Deletes the given MovieLoader 对象。

Functionality

A MovieLoader object simply opens a movie file to read its content:

MovieLoader::Open() : Opens the given movie file.
MovieLoader::GetInfo() : Gets the movie's frame rate and frame count.
MovieLoader::Read() : Returns the frame with the given index as a BaseBitmap .
MovieLoader::Close() : Closes the currently open movie file.

注意: 另请参阅 GeGetMovieInfo() .

// This example loads the given movie file and displays // each frame of the movie in the Picture Viewer.

AutoAlloc<MovieLoader> movieLoader; if (movieLoader == nullptr ) return maxon::OutOfMemoryError( MAXON_SOURCE_LOCATION );

// load movie file const IMAGERESULT res = movieLoader-> Open (selectedMovieFile); if (res != IMAGERESULT::OK ) return maxon::IoError( MAXON_SOURCE_LOCATION , MaxonConvert (selectedMovieFile, MAXONCONVERTMODE::NONE ), "Could not open movie file." _s);

// get movie info Float fps = 0.0; const Int32 frames = movieLoader-> GetInfo (&fps);

// load and display each frame for ( Int32 i = 0; i < frames; ++i) { // load frame Int32 frameResult; BaseBitmap * const frameContent = movieLoader-> 读取 (i, &frameResult);

// check if frame could been loaded

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Allocation/Deallocation

Functionality

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