How can I set properties of encoders used in TimeShifting object?

There are 2 ways to do that:

1. Use GetVideoCodecProps() and SetVideoCodecProps() methods.

This methods use ICGetState interface of codecs ( http://msdn.microsoft.com/en-us/library/dd743157(v=VS.85).aspx ). That means that they get and set properties in binary structure and it is impossible to change them manually (data storing format is codec specific).

So, here is a sequence of actions to use them:

• Set all needed codec settings through property page.

• Get state (settings) with GetVideoCodecProps() method.

• Save received settings.

• On next usage restore this settings with SetVideoCodecProps() method.

Note: ICGetState is supported by VCM codecs only (they are marked as blue in GraphEdit). Edit).

2. Receive pointer to codec object and use it's DirectShow interface directly.

Here is a sequence of actions:

• Create an instance of codec DirectShow interface (must be provided by codec developers).

• Get the pointer to codec object with GetVideoEncoderFilter() or GetAudioEncoderFilter() method.

• Cast codec object to it's DirectShow interface instance.

• Use DirectShow interface instance methods to set codec properties.

Note: This method is supported by non-VCM codecs with DirectShow interface only.