[Libav-user] How to optimize v360 filter config_output

[thông trần minh]

Hi everyone,

I'm trying to change v360 filter params such as roll, pitch at
real-time speed. I'm using avfilter_graph_send_command() to make thing
happen. The problem came when the image became larger, it took more time to
init a new filter graph. I found that most of the time it spent on running
this callback v360_slice()

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*Full Name*: Trần Minh Thông
*Phone*: (+84) 38 731 0304
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