UM2222 Rev 2
35/76
UM2222
Performance
75
6.5
Hardware JPEG Decoding
The JPEG peripheral provides a fast and simple hardware compressor and decompressor
of JPEG images with the full management of JPEG headers. The JPEG decoder outputs
are organized in YCbCr blocks.
The STM32F7 and STM32H7 Series devices support the hardware JPEG decoding.
Using the STM32F7 Series, the conversion from YCbCr to RGB is performed by software.
Using the STM32H7 Series, the YCbCr to RGB conversion is accelerated by the
Chrom-ART allowing to reach 100 fps with 640x480 resolution versus 38 fps with the
STM32F7 Series.
Note:
For more details about the JPEG hardware codec performance, please refer to the
application note “JPEG hardware codec peripheral in STM32F76/77xxx and STM32H7x3
line microcontrollers” (AN4996).
Figure 22. Hardware JPEG decoding
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