GLYUVPlay OpenGL based raw YCbCr sequence player (and converter) with several options of comparison between two sequences
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GLYUVPlay Tags

view convert play yuv viewer codec tester yuv conversion

GLYUVPlay Description

OpenGL based raw YCbCr sequence player (and converter) with several options of comparison between two sequences In video coding research, standalone implementation and testing of video codecs often involves the use of raw YUV streams. Since these streams can be parsed and generated by very simple means, raw YUV files are very common in video codec standardization and development.GLYUVPlay provides YUV playback, comparison and conversion capabilities on Mac OS X.Among the highlights of this program is the auto-detection of common formats. The correlation based auto-detection for sequences in planar YCbCr4:2:2 and YCbCr4:2:0 formats covers typical resolutions like CIF, QCIF, 720p and 1080p. When working with less common input formats, the auto-detection can be disabled in the open dialog.Since version 0.9, there is a raw export option available to save the input sequences in different RAW formats, resolutions and color depths. The algorithm for scaled output uses a high quality 16 tap windowed sinc filter (sinc windowed sinc aka Lanczos filter). Another change in v0.9 is the inclusion of multiple input formats, either 8 or 10 Bit in 4:2:0 and 4:2:2 subsampling.Furthermore, RAW sequences can be converted to any movie format supported by Quicktime (e.g. for use in presentations). Here are some key features of "GLYUVPlay": · displays either one or two sequences side-by-side · automatic correlation based guessing of width/height and chroma subsampling format for common resolutions (QCIF,SIF,CIF,720p,1080p,..., 4:2:0 8 Bit planar, 4:2:2 8 Bit planar) · loading of one-file and multi-file (segmented) sequences, automatic calculation of total frame number · loading of SGI file format sequences (8/16 Bit) · PSNR calculation, picture match indication (*) · difference visualization with optional contrast/saturation boost (*) · selective display of Y, U, V channels and top/bottom field · Macroblock raster display and magnification of highlighted Macroblock for FRAME, FIELD and MBAFF Modes · comparison result (PSNR or matching frame) shown in the frame slider · export as QuickTime supported movie (MOV,AVI,MP4,...) · export as RAW sequence (8/10 bit, 4:2:0, 4:2:2) · optional scaling in RAW export · copy current image into paste board · (*) Only in case that both sequences are of the same size. Requirements: · Graphic card with OpenGL rectangular texture support (Radeon, GeForce, GMA950 or better) What's New in This Release: · Snow Leopard compatibility. · Implemented support for YUV 4:0:0 (Luma only), 8 Bit. · Additional file extensions .yuv8, .yuv16 plus ability to change the default list by editing the GLYUVPlay.plist file.

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