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Tutorial 11: Fidelity analysis
Tutorial 11: Fidelity analysis
This tutorial covers the following:
Fidelity analysis in real-time (PSNR).
Using a YUV source reference
fi
le.
Fidelity metrics.
Graph navigation.
Comparing the
fi
delity of the same bitstream compressed with either MPEG-2
or H.264/AVC.
Viewing the visual difference between the compressed bitstream and the YUV
source reference video.
This tutorial requires that you have completed the previous tutorials and that
you can:
Open example streams.
Play, stop, step forward, and rewind a video.
Use and interpret alert pop-up messages.
Use the icons and controls on the buffer analysis graphical display.
This tutorial also requires that you already understand the principles of
fi
delity
analysis (this topic is not covered in this tutorial; however, the user manual
contains descriptions of the
fi
delity metrics).
Procedure
1.
To load the tutorial, click
File
>
Example
fi
les
>
MPEG-4 Elementary
Streams
>
Man Walking
. Ensure that the video is not playing.
2.
From the
Analysis
menu, click
Enable
fi
delity analysis
. The
Video analysis
options
dialog box appears for theYUV reference
fi
le. This
fi
le will later be
used for comparison with the compressed video
fi
le. The YUV reference
fi
le is provided as an example, as indicated by the text under the
Reference
fi
lename
fi
eld. (See Figure 92.)
3.
Set the
Frame rate
to 30. (See Figure 92.)
MTS4EAV7 HEVC / AVC Video and Compressed Audio Analyzer Tutorials
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