Our freeware filters
Log object for logging the parameters of the DS graph.
Opus Encoder for encode PCM stream to Opus format.
DirectShow filter for tracing (together with the log object) connections, positioning, data flow, etc.
DirectShow filter for generating a video stream with the required parameters and a synchronized audio stream
DirectShow filter for conversions of uncompressed video stream.
DirectShow filter to generate a multichannel sine wave with the required bit depth, amplitude, frequency, etc.