Hi,
Please replace with attached lib and give it a try.
r32_5_x_TEST_vp9_lib.zip (329.2 KB)
It is verified with the command:
// generate YUV420 data
00_video_decode$ ./video_decode H264 --disable-rendering -o 1080.yuv ../../data/Video/sample_outdoor_car_1080p_10fps.h264
07_video_convert$ ./video_convert ../00_video_decode/1080.yuv 1920 1080 NV12 sample_720p.yuv 1280 720 YUV420
// encode to vp9
01_video_encode$ ./video_encode ../07_video_convert/sample_720p.yuv0 1280 720 VP9 a.vp9 --report-metadata -br 500000 -vbs 33333