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海思VPSS旋转180度后掉帧
3516aDV500 一路500W，一路720P，旋转180度之后，VPSS掉帧（不足30帧），cat /dev/logmpp 显示`nc]:vpss_get_bind [line]:447 [info]:grp0 chn1 get bind failed!
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<3>[ vpss] [func]:vpss_get_bind [line]:447 [info]:grp0 chn2 get bind failed!
`
vpss 信息————————————————————vpss chn output status—————————————————————————————
grp chn enable width height pixel_fmt video_format dynamic_range cmp_mode send_ok frame_rate proc_time
0 0 Y 2880 1620 YVU-SP420 LINEAR SDR8 NONE 28676 24 67739
0 1 Y 1280 720 YVU-SP420 LINEAR SDR8 NONE 28674 24 67759
0 2 Y 1920 1080 YVU-SP420 LINEAR SDR8 NONE 28676 25 67769
0 3 Y 720 576 YVU-SP420 LINEAR SDR8 NONE 0 24 67778
0 4 Y 720 576 YVU-SP420 LINEAR SDR8 NONE 0 16 0
这是为什么呢，求大神指点一下
该回答已被题主采纳为最佳答案瞎猜是vb不够导致的，你这个/dev/logmpp的信息不足以分析，重新发一份看看，还有就是cat /proc/umap/* > proc.txt，把这个txt文件也发上来
我已经发了umap信息出来，VB分配的足够，我看还没用完。今天我看了下属于旋转0、90、270都没问题，VPSS的cost_time大概在32372左右，但是旋转180后，这个时间要去到300000+,所以怀疑是处理旋转180的时候有额外的运算开销导致的掉帧
这个旋转用的是VGS实现的，看了下VGS占用已经100%，处理不过来了导致帧率跟不上，优先考虑使用VPSS的翻转/镜像参数，这个不消耗VGS
感谢大哥指明了方向
实际上旋转的流程 关闭RGN -> 关闭VENC -> 设置VPSS旋转参数 -> 重启VENC -> 重启RGN , 过程中未涉及VGS的接口调用，为啥会默认去消耗VGS的呢
这个功能是模块内部主动去调用VGS实现的，MPP文档有说明
谢谢~ 那我懂了，按照你一开始说的通过翻转+镜像的效果实现180度也是可以的
这是我详细的umap信息
文件：
proc.txt
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