YUVtools includes YUVPlayer, YUVConverter, YUVAnalyzer and YUVEditor.  

    The main features of YUVTools are:

1. It can accept (play, convert and analyse) the combination of following 4 formats:
   • in 4:4:4, 4:2:2 or 4:2:0 YUV sample format, or in 4:4:4 RGB format;
   • in different compoent order, like YUV, YVU, UYV,  RGB, BGR, etc.
   • in progressive (one single field) or interlaced (two fields) format;
   • in planar (YYY...UUU...VVV...) or packed (YUV, YUV....) pixel format;
   • with predefined or arbitrary resolution;
   • One example of the file format can be: YUV 4:2:0, interlaced, pixel packed, 352 x 288.
2. Support FOURCC ( refer to: http://www.fourcc.org/). When one FOURCC is selected, other cooresponding formats are set to match this FOURCC:
   • UYVY (YUV422, U-Y-V-Y, progressive, packed)
   • UYNV (same as UYVY )
   • Y422 (same as UYVY )
   • IUYV ( YUV422, U-Y-V-Y, interlaced, packed)
   • YUYV (YUV422, Y-U-Y-V, progressive, packed)
   • YUNV (same asYUYV)
   • V422 (same asYUYV)
   • YUY2 (same asYUYV)
   • YVYU (YUV422, Y-V-Y-U, progrssive, packed)
   • IYU2 ( YUV444, U-Y-V, progressive, packed)
   • YV16 (YUV422, Y-U-V, progressive, planar)
   • YV12 (YUV420, Y-V-U, progressive, planar)
   • IYUV (YUV420, Y-U-V, progressive, planar)
   • I420 (same as IYUV)
3. Since the raw video data is headless and with no format information saved in the file, a format guess function is provided when the video data is loaded to play, convert and analyse. For each format combination, an image preview (first frame), a format diagram (illustrating the data structure) and a raw data dump map will be displayed interactively, to help the users to try the combination of above format, till right format is obtained. 
4. YUV Player:
   • When playing a video file, user can start/stop, play/pause, reverse play, frame by frame forward/backward, or directly drag to certain frame;
   • When playing a video file, user can select display YUV all components, or one of Y, U, V components separately;
   • User can open and play multiple video files at same time;
5. YUV Converter:
   • It can be used to convert any combination of above format to another;
   • It can convert a sequence of BMP files into a single YUV/RGB format, or vice versa;
   • It can scale up/down if the input and output have different resolution
   • Join: Two YUV files can be joined into one file.
   • Crop:One area of all frames can be cropped and saved into a new YUV file.
   • Filp: Vertically flipping all frames in original file and saved into a new YUV file. 
6. YUV Analyzer:
   • A PSNR tools can be used to calculate the PSNR of two input video file;
   • Two video files can be compared frame by frame, and the difference (residual) will be displayed
   • The brightness of the difference image can be adjusted, in case the difference is very small; The comparison can be applied to YUV all components, or one of Y, U, V components separately;
   • Data Overlay:Other information can be overlaid on top of video display while it is playing. For each macroblock, one dimensional (like block type) or two dimensional inforation (like motion vector) can be overlaied;
7. YUV Editor :
   • You can select one block, and zoom in to check each pixel values, whether in RGB or in YUV, and at the same time, you can change the pixel values, in order to create sepecial colors or patterns in block
8. Additional options:
   • Overlay two layers of grid, which can be used to show MB (Macro Block, 16x16 in MPEG2) and Block (8x8 in MPEG2), in two different colors;
9. Support command line options for yuv playing and converting, useful for batch process or scripting.