Hi All:
As we know DM365 H264 encode support several kinds of bit rate control algorithm, copy the link here:
http://processors.wiki.ti.com/index.php/DM36x_Rate_Control_Modes
I have tried the CVBR, VBR and CBR base on this guide and I found that the real bit rate is very close to the target bit rate when I try to switch the camera between simple and complex scene, it's reasonable for CBR mode, but for CVBR and VBR I suppose the bit rate should be changed base on the scene, right? In face the real bit rate will be always between 90%~110% of the target bit rate.
I have also tired use Fix Qp mode under the different scene and the bit rate in simple scene is about 500Kbps, but in complex scene, it reach to 2~4Mbps.
Is there any way to enlarge the bit rate range for CVBR and VBR mode? I think it's almost same as CBR mode.
What I want is:
1. Bit rate should be changed base on the scene, in some simple scene, the bit rate should be very low for save bandwidth.
2. The maximum bit rate should be in control, you know the bit rate is out of control under Fix Qp mode.
Any one who can help on this?
Thanks in advance!