User manual VIEWCAST OSPREY-700E HD FOR WINDOWS

[. . . ] Osprey-700e HD User Guide For Microsoft Windows XP and Windows Server 2003 Osprey-700e HD User Guide Table of Contents TABLE OF CONTENTS Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i UL STATEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a FCC NOTICE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a PRODUCT DISPOSAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . b Chapter 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The user must decide what type of pin to select based on several criteria. The user should be aware software applications that use Osprey capture cards and AVStream drivers communicate with the hardware via a Microsoftdeveloped software layer named DirectShow®. DirectShow is a collection of software objects, i. e. , an object library, for working with video, audio, and other multimedia data. The object library primarily consists of filtersobjects that process video and audio data and are connected or chained together into filter graphs. For example, ViewCast-designs filters included in all Osprey AVStream drivers that interact with the capture hardware to grab digitized frames of video. These filters then process video streams and pass them to target software applications like WME. Other filters are associated with previewing or displaying video that decode video and render video to the screen. Filters usually have inputs and outputs and are interconnected programmatically as needed. The input and output connections are referred to as pins, and the pins of interest to the Osprey user are the Capture Output pin and the Preview Output pin. Generally, captured audio and video to be fed to the Encoder is taken from the Capture pin, while video for local preview, such as the Input video window in the Windows Media® Controller dashboard, will usually use the Preview pin. In most cases the Preview pin is given a lower priority in the video processing engine. If the host PC is nearing its upper performance margin where video quality could be compromised, it is preferable to sacrifice quality or drop frames in the Preview output in favor of sustaining quality of the Capture pin's output. Exposing these pins separately in Osprey drivers allows the user to balance his or her needs with the host computer's performance and the user's video application's features. The user might apply a very low-effort de-interlacing process to a preview window to save CPU cycles, and apply a more CPU intensive Advanced Motion Adaptive De-interlacing process to the captured stream for maximum video quality. 22 Osprey-700e HD User Guide Chapter 1 Like other Osprey cards, the Osprey-700e HD allows the user to define various setups for the two pins. For example, the user could choose to include a Logo in the capture pin's video, but not in the Preview output. When the user selects the Capture radio button, the current logo settings for the Capture pin are loaded, and changes the user makes apply only to the Capture pin, not to the Preview pin. The Preview button works in the same manner. The DirectShow Pin Properties some applications use with Osprey cards might expose for Capture and Preview pins are always per-pin. 23 Osprey-700e HD User Guide Chapter 2 CHAPTER 2 SETTING THE OSPREY-700e HD AVSTREAM DRIVER PROPERTIES Accessing the Osprey Video Capture Card Properties After the user has installed the Osprey-700e HD card and driver, the user will be able to access the properties for the card through most major DirectShow applications (such as WME and RealProducer®). For detailed information on how to select the Osprey Card and access its Video Properties window from third-party applications, the user should refer to the documentation for the encoding application. Note that most of these encoding applications expose the drivers' property pages without modification, so the examples set forth below will probably appear as shown. However, some applications expose the Property pages slightly differently. Therefore, the examples below might differ somewhat. The Video Capture Properties Window When the user's video application is invited to expose the Osprey-700e HD's video-related property pages--usually by navigating to the user's applications' Video Properties or Video Settings page--the user will see a pop-up form as shown in the figure below. [. . . ] The user's authorized ViewCast Support representative might invite the user to change these settings should the user experience problems using the Osprey-700e HD with a video application 39 Osprey-700e HD User Guide Chapter 2 Warning: The user should not enable these settings without specific instructions from ViewCast Support. Doing so without proper instructions might result in system instability or in the system crashing. 40 Osprey-700e HD User Guide Chapter 3 CHAPTER 3 THE AUDIO DRIVER Setup and control for audio are much simpler than for video. The basic steps are covered in the following topics. Selecting the Audio Source and Input Volume The audio source is set using the Osprey mixer driver interface. Most applications, including the WME applications, interface to the mixer driver directly and expose the look and feel of specific applications. [. . . ]