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ISVP-SDK
3.12.0
Ingenic Smart Video Platform SDK
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Define the VBR ratecontrol attribute of h264 channel. More...
#include <imp_encoder.h>
Data Fields | |
| uint32_t | maxQp |
| max encoder Quantization parameter,range:[0-51] | |
| uint32_t | minQp |
| min encoder Quantization parameter,range:[0-maxQp] | |
| uint32_t | staticTime |
| bitstream statistic time, unit:second | |
| uint32_t | maxBitRate |
| max bitrate in one second, unit:kbps | |
| int32_t | iBiasLvl |
| I proportional frame support (-3~3), 7 levels. | |
| uint32_t | changePos |
| adjust qp position avriation when bitrate exceeds changepos*maxBitRate, range:[50, 100] | |
| uint32_t | qualityLvl |
| Video quality lowest level, range:[0-7]；the lower the value, the higher the quality and the biger the bitstream, minBitRate = maxBitRate * quality[qualityLvl], quality[] = {0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1}. | |
| uint32_t | frmQPStep |
| Inter frames QP variation. | |
| uint32_t | gopQPStep |
| QP variation among GOPs. More... | |
| bool | gopRelation |
| gop是否关联 | |
Define the VBR ratecontrol attribute of h264 channel.
| uint32_t gopQPStep |
QP variation among GOPs.
1.8.8
