MovieSaver Manual

Table of Contents

• About
• Allocation/Deallocation
• Functionality
• Further Reading

About

The MovieSaver class is used to save image data to a movie file. Supported movie containers are either AVI (FILTER_AVI) or QuickTime (FILTER_MOVIE).

Warning

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

Allocation/Deallocation

A MovieSaver can be created with the usual tools:

• MovieSaver::Alloc(): Creates a new MovieSaver object.
• MovieSaver::Free(): Deletes the given MovieSaver object.

Functionality

A MovieSaver object simply opens a movie file and writes multiple frames into that file:

• MovieSaver::Open(): Opens or creates the given movie file.
• MovieSaver::Write(): Writes the given BaseBitmap into the movie file.
• MovieSaver::Close(): Closes the open movie file.
• MovieSaver::Choose(): Opens the standard dialog to select movie compression settings.

  // This example saves multiple bitmaps into a movie file.
 
  AutoAlloc<MovieSaver> movieSaver;
  if (movieSaver == nullptr)
    return maxon::OutOfMemoryError(MAXON_SOURCE_LOCATION);
 
  // open the movie file
  const IMAGERESULT res = movieSaver->Open(saveMovieFile,
    typicalFrame, 25, FILTER_AVI, nullptr, SAVEBIT::NONE);
 
  if (res != IMAGERESULT::OK)
    return maxon::IoError(MAXON_SOURCE_LOCATION, MaxonConvert(saveMovieFile, MAXONCONVERTMODE::NONE), "Could not create movie file."_s);
 
  // store each frame
  for (Int32 frame = 0; frame < frameCnt; ++frame)
  {
    // get bitmap content
    // this is a just a custom function
    GetBitmapOfFrame(bitmap, frame) iferr_return;
 
    // store bitmap data
    if (movieSaver->Write(bitmap) != IMAGERESULT::OK)
      return maxon::UnknownError(MAXON_SOURCE_LOCATION);
  }
 
  movieSaver->Close();

Further Reading

• Files & Media
• Classic API Files & Media
• BaseBitmap Manual
• MovieLoader Manual