DM6437 Codecs
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Overview
The DM643x architecture does not include a hardware accelerator. The DM6437 codecs are implemented on the DSP. They can run on the DSP of any DaVinci heterogeneous platform such as DM6446 or DM6467 as long as there is no mismatch between the xDM version supported by the codec and the xDM version supported by the framework on the device.
The DM6437 codecs will not run on non-DaVinci platforms such as TMS320C6455.
JPEG Encoder
The JPEG Encoder v1.11.000 datasheet mentions in Table2. that the performance is 38.8 Mega Pixels per Sec. for a frame size 768x512 (YUV422) at 10:1 compression ratio.
Q: How do we compute how many frames/sec can be processed?
A: The pixels refer to bytes. In a WxH YUV422 image, there are 2xWxH pixels (bytes). So, a 768x512 YUV422 image has 786432 pixels. The JPEG performance of 38.8 Megapixel per second corresponds to 38800000/786432=49.36 frames/sec
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