Exploration
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- This section starts with exploring and understanding the Intel® Media Server Studio related packages installed on your computer. It also covers the related customized applications, such as the sample decoder bundled with installation.
- Understand the performance differences between hardware and software based encoding/decoding.
- Observe the performance difference between various Intel® Media SDK operations using a system performance monitoring tool.
- Observe the utilization of GPU and CPU in software and hardware acceleration modes.
By the end of this module, you should have a basic understanding of the Intel® Media Server Studio, the installation structure, and the performance enhancement of selected applications.
Packages Installed on Your Machine
- Intel® Media Server Studio:
Default installs located at: /opt/intel/mediasdk/
- Intel®Media Server Studio Sample applications:
Pre built samples are available at /opt/intel/mediasdk/samples/ for 64-bit architecture
- Intel® Media Server Studio documentation: /opt/intel/mediasdk/doc/
Commands:
System Analyzer
System Analyzer tool reports back following information about CPU, GPU and Intel ® Media Server studio components.- Platform readiness: check if processor has necessary GPU components
- OS readiness: check if OS can see GPU, and if it has required glibc/gcc level
- Check for successful installation of Intel® Media Server Studio/Intel® SDK for OpenCL™ applications components
- Run smoke test programs and validate Intel® Media Server Studio and OpenCL™
Perfromance Monitoring
We need a few performance monitoring tools before we proceed with Intel® Media Server Studio sample programs.
Open the Performance monitoring tool as shown in the picture
This tool is used to compare the CPU performance of software and hardware decode processing in the Intel® Media Server Studio.
Note: If you are running any other programs alongside the decode program below, their process will be added to the CPU, GPU & memory utilization results.Hence, this might give your incorrect results. Close all other programs before running this test. Then, observe the sample_decode process performance from the system monitor tool.
Decode a raw video
Intel® Media Server Studio ships with a few basic samples demonstrating various functinalities. Here we are using a console application which performs decoding of elementary compressed video stream to raw frames.
Make sure to review the performance parameters while running these samples. This can illustrate the difference between software and hardware acceleration modes.
Open new terminal and change the directory:
Case 1: Execute the below command for software implementation:
In this example -sw stands for Software base Acceleration, -r is for rendering the output.
Note: These are very small video clips, they may close down before you notice. Try to download bigger H264 files and try this application.
Case 2: Execute the below command for hardware acceleration:
In this example, we are instructing the application to use the vaapi memory type. If you don't specify, then application will use system memory as default. -hw stands for hardware Acceleration.
If you wish to see all the available options for decode, then type ./sample_decode
Encode raw video frames
sample_encode is another console application which encodes raw video frames into elementary compressed streams.
Case 1: Execute the below command for software implementation:
We are passing an input raw video stream and converting it to h264 formatted elementary stream.
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We specify width, height and framerate for this conversion. You can review all the available switches by typing ./sample_encode at the terminal. Superior drummer sdx keygen crack.
Observe the CPU utilization from System Monitor.
Case 2: Execute the below command for hardware acceleration:
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To view the converted h264 file, run the decoding sample as follows:
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Lessons learnt
Autoplay Media Studio 8 Examples
- Explored Intel® Media Server Studio sample applications.
- Performance monitoringing of video decoding and encoding processes.