Example Commands

To decode 100 JPEG files into 720 x 480 images in RGB format

Enter the command:

./nvm_ijpd_sci -f input%d.jpg -of outputfile -fn 100

To decode 100 JPEG files with CRC generation

Enter the command:

./nvm_ijpd_sci -f input%d.jpg -of outputfile -fn 100 -crcgen crc.txt

To decode 100 JPEG files with CRC checking

Enter the command:

./nvm_ijpd_sci -f input%d.jpg -of outputfile -fn 100 -crcchk crc.txt

To decode a monochrome (YUV400) file

Enter the command:

./nvm_ijpd_sci -f input.jpg -of outputfile -format 4

The default format value is 0 (yuv420). Format conversion from YUV400 to YUV420 is not supported. You must set the -format switch to 4 for monochrome decode.

Configuration Format

The ‑format parameter configures the color format of the decoded YUV. Supported formats are:

• 0: yuv420 (the default)
• 1: rgba
• 2: yuv422
• 3: yuv444
• 4: yuv400

The output format that can be configured for a JPEG input depends on the format of the JPEG:

Output YUV Resolution

The resolution of generated YUV is always aligned to the next multiple of 16. For example, if the input JPEG resolution is 800x600, the resolution of output YUV file is 800x608. Note that the image is not scaled from 800x600 to 800x608; the last eight lines must be ignored.