Enable Cropping

Setting Driver Properties

If your Pin Select setting is Both, both the Capture and Preview fields are enabled, and the two fields to the right of the group show the worst-case granularity that works for both the Capture and Preview color formats. For example, if the Capture color format is I420 and the Preview color format is YUY2, the resultant granularity is I420’s more stringent 4 x 2 requirement.

The granularity and alignment settings affect values you subsequently enter for crop width, crop height, and default output width and height – they are adjusted to these granularities. Adjustments are made when you click Recalc, Apply, or OK.

You can change the video format in the drop-down list, so that granularities are set for a different format. Note that this does not automatically cause the pin to have this format – you still have to select that format using the Pin Properties window or via your application. It just ensures the sizes you select work correctly when you do select this color format in the application.

If you set up your crops with a less restrictive granularity (for example, YUY2) and then capture with a more restricted granularity (for example, I420), the driver may automatically adjust the video crop and/or output size without notifying you. Or, the capture may fail. You may also find that in the Pin Properties window the default size you wanted is not listed – because it is not a legal size for this format.

If you select [none] as the color format(s), the minimum granularity and alignment adjustments are applied to your crop and size data.

If you select [any] as the video format, the coarsest granularity required by any of the available formats is applied to your crop and size data. In practice, [any] is the same as YVU9, that is, 4 x 4. You are guaranteed your crop and output sizes will never be adjusted, regardless of what video format you select now or in the future.

If you disable Enable Cropping, your video is not cropped regardless of any crop settings you may previously have made. The edit boxes showing the edges, height, and width of your crop is read-only and shows settings for full-frame, uncropped video.

Figure 51. Enable Cropping

If you enable Enable Cropping, your video is cropped to the indicated boundaries. Previously stored crop settings are recovered. The edit-boxes are enabled. The Top and Left boxes set the top left corner of the cropping rectangle. The Right and Bottom boxes set the bottom right.

You can apply cropping to either the Capture pin or the Preview pin independently, or can be applied to both simultaneously, depending on the currently selected Pin Select option.

ViewCast

Osprey-450e, Osprey-240e specifications

The ViewCast Osprey series, particularly the Osprey-240e and Osprey-450e, represents a significant advancement in the field of video capture and encoding technology. These high-performance video capture cards are designed to meet the growing demands of professional broadcast environments, video production, and live streaming applications.

The Osprey-240e offers a compact design while delivering excellent performance. It is equipped with dual channel input capabilities, allowing users to capture multiple streams simultaneously. This feature is particularly beneficial for broadcasters and content creators looking to streamline their workflows. The Osprey-240e supports a variety of input formats including SDI and HDMI, ensuring compatibility with a wide range of video sources. Its robust encoding capabilities allow for real-time video streaming in HD resolution, making it suitable for live events, webinars, and other digital content delivery applications.

On the other hand, the Osprey-450e takes video capture to the next level with enhanced capabilities. It supports up to four channels of video input, making it an ideal solution for multi-camera setups. The Osprey-450e also boasts advanced encoding technologies that facilitate high-quality video compression without sacrificing performance. This model is particularly well-suited for enterprise-level applications where high-definition video quality is paramount. Users can experience lower latency and improved encoding efficiency, resulting in smoother viewing experiences for end-users.

Both models feature powerful drivers and software support that integrate seamlessly with a variety of video production and streaming applications. The Osprey series is designed with user-friendly interfaces, making it accessible for both seasoned professionals and newcomers alike. The cards are also compatible with many of the industry-standard software solutions, enabling users to harness the full potential of their video content.

These capture cards also prioritize reliability and durability, ensuring long operational life even under demanding conditions. Their efficient thermal management systems keep components cool during extended use, thereby enhancing performance consistency.

In summary, the ViewCast Osprey-240e and Osprey-450e deliver impressive features tailored for a range of video applications. Their support for multiple input channels, advanced encoding technologies, and strong software compatibility make them invaluable tools in the modern digital media landscape, solidifying their reputation among content creators and broadcasters alike.