helix mobile producer on-demand user's guide - RealPlayer

Helix Mobile Producer On-Demand User’s GuideResizing ValuesCodec Min. Size Max SizeMPEG4 32x32 640x288 4RealVideo 32x32 2048x2048 4You can resize your video input either by selecting a predefined size (forexample, 50% or CIF) or by specifying the height and width of the videooutput (in pixels).Min.incrementInsert LogoUse this option to add a still image logo overlay onto the video input framesbefore encoding. A common use case is to insert a station or content provideridentifier.The logo insertion filter has three parameters.• The first is a filename and path to an image file. JPEG, BMP, PNG, andGIF are the supported image formats; animated GIFs are not supported.• The distance of the left edge of the logo from the left edge of the video.• The distance of the top edge of the logo from the top edge of the video.Change Frame RateSets the maximum output frame rate of a video stream. In multi-rate files,each video stream can have its own frame rate setting. There is no guaranteethat the target frame rate will be achieved. Limiting factors will include theframe rate of the source, the bit rate of the video stream, the dimensions of thevideo stream, the codec used, and the load on the machine.RealVideo codecs should be feed all video frames, along with the target framerate to allow the codec to decide how to achieve the best results. For example,if the target frame rate is 15 fps, but the bit rate and frame size make achievingthis consistently impossible, the RealVideo codecs will drop down to a lowerconstant frame rate for the best end user experience.Select this option to change the frame rate (the number of frames per second,or fps) in the original video source and specify the ratio for dividing frames.Note that reducing the frame rate decreases the bandwidth used by theencoder and might affect the minimum bit rate.46