Best Way To Get Directx Windows Media Player 11. Dissolve

 

If you’ve seen DirectX Windows Media Player 11, this guide will help you.

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g.Microsoft DirectX 11 is a group of experts who integrate with Windows and give me the skills to run many of the most popular PC games on Windows.

 

 

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This section explains how to enable Microsoft® DirectX® video acceleration when playing streaming content in a custom player.

Context

DirectX Video (DirectX VA Speed) is an API specification for electronically accelerating 2D decoding processes. This helps the software decoders to outsource some of the CPU-intensive processes to handle the cards on the graphics card. For end users, this allows this type of full screen high speed DVD video to be played on traditional computers with DirectX VA compatible labels.

Starting with the Windows Media Format 9 Series SDK, the DMO wrapper filter supports DirectX VA. This means that local video playback applications can use the WM ASF Reader filter to play Windows Media content in addition to DirectX hardware. Acceleration is often called automatically if your graphics card also supports it. However, the WM ASF Filter Player does not support playing broadcast content. TrackAwesome, if you want to support the DirectX virtual device when playing streaming content in a modified player, you must use the alternate process used in Windows Media Player from the Windows Media 9 series.

Because Windows Media Player was developed before the QASF filters were added, Windows Media Player has its own update filter based on the Windows Media Format SDK for playing Windows Media content. The Windows Media WMP Source Filter delivers uncompressed material directly to audio video clips and renderers. In contrast, ASF WM Player provides downstream compressed content for most DirectX Media Objects (DMO) in Windows Media Decoders hosted in the DMO. The following diagrams roughly show the differences between the WM ASF Player and the native Windows Media WMP filter.

To enable DirectX VA for streaming content, you need to create a better custom source filter, such as the one listed at the top of the diagram. Essentially, this filter should be usedCall the Windows Media Format SDK so you can instantiate a WM-Reader object, unpack a specific sample, send it, and send it downstream to its output contacts. This discussion assumes that you have already created the original filter and are now ready to implement VA Directx support.

To enable DirectX VA, the primary job of the original filter is to provide the video renderer and WMV DMO decoder with the interfaces they really need to negotiate the DirectX VA network connection. The original filter does not participate in all negotiations. Once streaming has started, another related non-DirectX VA task that source cleanup can perform is to change the video timestamps before sending them to the video renderer from the WMV decoder. The main reason for this is to provide custom timeline control close to what standard DirectShow® interfaces allow.

Three connections have been defined to activate the required peripherals between the Windows Media Format SDK, specifically Player Source Filter, Windows Media Video Decoder DMO and Overlay the Mixer, and е Video Mixing Renderer. These interfaces are described in the following table.

Interface	Description
IWMCodecAMVideoAccelerator	is detected by its Windows Media Decoder DMO and called next to the media player source filter to restore the various connections required for DirectX VA to be able to decode Windows Media video content.
IWMPlayerTimestampHook	Implemented separately on the player’s sources. This allows the filter to change its timestamps on video samples before they are delivered to the downstream.
IWMReaderAccelerator	The reader is implemented in WM. Called by the original filter element to get the interfaces of the new DMO decoder.

VA Order Of Operation – Directx Read Enabled

This section describes the general run-time sequence for a DirectX VA compatible player and its source filter. This subsection mentions the following components:

• Third party media player named “where player”.
• Custom source filter createdth by the player itself, which uses the Windows Media Format SDK to decompress Windows Media content.
• An output pin of the source disk, called an output pin.
• Video Directshow playback filter schematic versus diagram.
• A video mix renderer called VMR.
• The Windows Media SDK creates an asynchronous player object called player.
• Windows Media Video Decoder DirectX media object known as decoder-DMO.

1. The player instantiates its filter source and you can read the object easily. The player creates a DMO receive decoder and determines the (compressed) sentences for input. This should be done recently. The player is trying to adjust its movie playback schedule because the SDK and DMO decoder currently need to be in graphics alignment and your DMO needs to know the input format in step 9.
2. The player calls the video source filter output pin to provide igraphbuilder :: render, IT. At the moment, a Forex broker with a DirectShow filter diagram is trying to connect the VMR to the fThe video source filter of our own player.
3. The graphics filter coordinator calls IPin :: Connect to the output pin of all video filter sources in the player.

1. The source block gets the IWMCodecAMVideoAccelerator interface from the IWMReaderAccelerator :: GetCodecInterface method of the target group. If the codec definitely supports VA, the call to GetCodecInterface may fail directly. In this case, negotiation continues normally without support for the DirectX virtual appliance.

2. 

   The power filter passes an IAMVideoAccelerator pointer to each of our pins, which is passed to the Connect to Decoder of the main DMO via IWMCodecAMVideoAccelerator :: SetAcceleratorInterface.

3. The International Filter Source then delegates the remainder of the IPin :: Connect operation to the CBaseOutputPin :: Connect method. The enumeration of formats is done using the SDK as it is now. If the codec supports DirectX VA for the content to be linked, the codec first presents DMO with these DirectX VA subtypes using the older YUV and RGB types. If DirectX Virtual Appliance support is available, procedures 7-11 are usually taken in contextnot a subtype of the DirectX virtual device. By following the code snippet, you will learn how to determine the DirectX VA media subtype.

     bool IsDXVASubtype (AM_MEDIA_TYPE * pmt)    All // DXVA types have the same last 3 longer DWORDs.    // guidDXVA is without a doubt the base GUID for all DXVA subtypes.    GUID guidDXVA stands for 0x00000000, 0xa0c7, 0x11d3, 0xb9,0x84,0x00,0xc0,0x4f, 0x2e, 0x73,0xc5;    unsigned too long const * plguid;    long unsigned const * plguidDXVA;    plguid matches (unsigned long const *) & pmt-> subtype;    plguidDXVA = (long unsigned *) & guidDXVA;    if ((plguid [1] == plguidDXVA [1]) &&        (plguid [2] == plguidDXVA [2]) &&        (plguid [3] == plguidDXVA [3]))            returns true;        it is bad to visit your blog; 

4. The CBaseOutputPin :: Connect implementation calls IPin :: CompleteConnect in Tip 3. If a DirectX virtual device subtype has been taken into account, no doubt a DirectX virtual device negotiation will be attempted. The output pin calls IWMCodecAMVideoAccelerator :: NegotiateConnection, which passes the current output media type.

5. The DMO decoder does the necessary negotiation with most VMRs through the IAMVideoAccelerator interface and returns the GUID of the video subtype with whichThe legs agreed. The output delegates the personal identification number of all IAMVideoAcceleratorNotify calls made in this step to the IAMVideoAcceleratorNotify interface of the DMO decoder, which can also be obtained using the IWMReaderAccelerator :: GetCodecInterface method.

6. If NegotiateConnection succeeds, the egress contact phone with iwmcodecamvideoaccelerator :: setplayer notifies the IWMPlayerTimestampHook interface. This elevation allows the original filter to update the actual timestamps of the samples before many people are passed to the renderer.

7. 

   The filtering site calls IWMReaderAccelerator :: Notify with the matched media class. This allows the reader to update internal variables and pass them to the DirectX VA. This is the last place where a codec or player can fail. If any of the above fails, the original filters should go back to step 3 and run the next type specified for the new disk.

8. Playback starts. The player ignores output buffers, including the DMO decoder, if the type of adding output is DirectX VA.IPin :: Disconnect

9. In this case, each filter is source The library calls IWMCodecAMVideoAccelerator :: SetAcceleratorInterface with a NULL value. This causes the DirectX virtual appliance to break between the web connection, the codec, and the renderer.

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