I'm using the H.264 encoder software module for ADSP-BF561. I have achieved compression ratio around 60:1. Is it possible to reduce the compression ratio to increase the output video quality ? If so, then how?
Thanks for contacting private support. You're issue has been logged as PR73519.
You can use -b command line switch to change the bit rate of the compressed video.
Higher bit rate will reduce the compression and increase the output video quality and vice versa.
-b <bit rate>
-b 1000000 for 1Mbps bit rate.
Other option is changing the quantization parameter using the command line switch.
Refer to demo guide for details.
Thank you for your reply, Mr. Ajeet. I'm facing another problem now. I have loaded the program for H.264 encoder into Flash Memory of the board. After power-on the board, the code is loaded into the processor and H.264 encoding is working properly only when the emulator (ICE-100B) is connected with the PC and board. But without this emulator, the USB(NET2272)is not detected. I'm getting the message "No Blackfin USB devices were found" on the Command prompt Window. Please let me know the possible reasons behind it so that we can get rid of the problem.
The reason why the USB(NET2272) is not detected is because of the default initialization file which you may be using is not working properly. Please send this request through processor.tools.support <firstname.lastname@example.org>
and we will provide you a modified ezkitBF561_initcode.dxe file.
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