MPEG settings:

The MPEG stream settings are situated at the right side of the window. There are two options for the Multiplex Type: Program or Transport stream.

When  Transport stream is selected, the TS Mux Rate spin-box becomes active, so you could either select  Automatic, or fix the Mux rate manually. The Audio Bit Rate is adjustable for both stream types. It is 192kbit/s.

If you select  Program stream, the network protocol will be switched automatically to  UDP.

With  Transport stream you can choose between UDP and RTP.

CPU time factor – similar to IP Pump, in IP Streamer we use the CPU clock to generate the PCRs of the Transport Stream. Enter the value from the stream analyzer in this spin box to compensate the inaccuracy of the CPU clock frequency.

Pressing the Mux Settings button will open the dedicated setup dialog of installed Multiplexor module. Please, do not change the default settings here, before consulting with our support team.

Pressing the Encoder Settings button will open the setup dialog of the video codec properties dialog.

You can set some encoding video parameters here, like video bitrate, Video Profile, GOP structure, etc.

For reference, here is a brief description of the options for the MainConcept© video encoding.

In the MPEG Preset drop-down list all of the available MPEG video compression types in the Main Concept encoder are listed.

The Video Format drop-down list provides a list of video formats – PAL, NTSC, SECAM, etc.

Below you can select the encoding Profile, Level, Picture type.

Further down you can specify the Field Order (bottom or top first) and the Pull-down mode. Pull-down is applied for conversion when the source bitrate and the output bitrate are different.

The Bit Rate Control field is situated to the right. There you can specify the bit rate Mode: Constant, Variable, or Constant Quantization. The specific bitrate values strings can be managed from the subfield below.

The Pass drop-down list is used to specify the multi-pass encoding mode:

Simple – encoding without gathering statistics

Analyze – encoding and gathering statistics for next pass

Encode – encoding using the gathered statistics and updating it.

In the GOP structure area, you can specify:

Max GOP length – the maximum length of any Group of Pictures. Larger numbers frequently provide better compression. Smaller numbers provide better error recovery and better access to the frames for editing.

Max B-frames count – the maximum number of B frames in a GOP. Some decoding situations, such as video conferencing, may require “no B-frames” for providing low communication delay.

Scene change detection – enables/disables the scene change detection.

The  Overall PSNR check-box is situated in the lower right corner of the Statistics filed. It enables/disables the measuring the Peak Signal to Noise Ratio. This requires some CPU resources, so check it only if you need these statistics.

The Advanced Settings page contains more sophisticated options that should not be changed, unless advised by our support team!