sudo yum install gcc gcc-c++ lz4-devel snappy-devel libnghttp2-devel libpcap-devel sudo yum install qt-devel libtool qt5-qtbase-devel qt5-qtmultimedia-devel sudo yum install qt5-linguist desktop-file-utils wget https://1.eu.dl.wireshark.org/src/wireshark-2.6.2.tar.xz cd wireshark-2.6.2 ./configure make all sudo make install
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July 30, 2018
Build Wireshark in CentOS 7
First, download the source code for the latest stable release from the Wireshark download page. We will use release 2.6.2 in this example.
August 13, 2017
H.264/AVC Video Compression on Smartphones
In this paper we studied the usage of H.264/AVC video compression tools by the flagship smartphones. The results show that only a subset of tools is used, meaning that there is still a potential to achieve higher compression efficiency within H.264/AVC standard, but the most advanced smartphones are already reaching compression efficiency limit of H.264/AVC.
Published in: Sharabayko M.P., N.G. Markov. H.264/AVC Video Compression on Smartphones. Journal of Physics: Conference Series. Vol. 803, 2017: Information Technologies in Business and Industry (ITBI2016).
Published in: Sharabayko M.P., N.G. Markov. H.264/AVC Video Compression on Smartphones. Journal of Physics: Conference Series. Vol. 803, 2017: Information Technologies in Business and Industry (ITBI2016).
August 7, 2016
Contemporary Video Compression Standards. H.265/HEVC, VP9, VP10, Daala
In this paper we compare compression efficiency of the latest video coding standards H.265/HEVC, VP9, VP10 and Daala to H.264/AVC with the help of reference video encoders available.
This blog post deliberates on the results published in our research paper:
Sharabayko M.P., Markov N.G. Contemporary Video Compression Standards. H.265/HEVC, VP9, VP10, Daala.
Control and Communications (SIBCON), 2016 International Siberian Conference on, Moscow, 12-14 May, 2016, pp. 1-4.
that can be found on IEEE Xplore.
that can be found on IEEE Xplore.
March 19, 2016
January 18, 2016
Fast YUV to RGB conversion in Python 3
This Python scripts implements fast matrix-based conversion from YUV to RGB colospace. Conversion from YV12 (YUV420) requires one extra line of code to perform up-sampling of chroma planes.
July 12, 2015
A Python script evaluating PSNR metric of two YUV420 frames
A script evaluating PSNR metric of two YUV420 frames.
usage: psnr.py filename1.yuv filename2.yuv frame_width frame_height
Alternatively if filename1 contains width and height in the form file-1200x1600.yuv,
the script will extract width and height of a frame from the filename. Then usage even simplier:
psnr.py filename1-1200x1600.yuv filename2.yuv
usage: psnr.py filename1.yuv filename2.yuv frame_width frame_height
Alternatively if filename1 contains width and height in the form file-1200x1600.yuv,
the script will extract width and height of a frame from the filename. Then usage even simplier:
psnr.py filename1-1200x1600.yuv filename2.yuv
November 17, 2014
The maturity of H.265/HEVC video compression on the study of X265 v.1.4
In this post I share my test results on x265 coding efficiency to track the development progress. The x265 version 1.4 was used for this test, as well as the JCT-VC test sequences. It is worth mentioning that the Class E sequence set has changed, as described in JCTVC-O0022. However, for backward compatibility of the test results I still use the old test sequences set.
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