Testing av_video_enc_params_alloc()
VP9: OK, type=0, nb_blocks=4, size>0=yes
H264: OK, type=1, nb_blocks=4, size>0=yes
MPEG2: OK, type=2, nb_blocks=4, size>0=yes
zero blocks: OK, nb_blocks=0
alloc (no size): OK

Testing av_video_enc_params_block()
frame qp=26, delta_qp[0]={-2,-1}
block 0: src=(0,0) size=16x16 delta_qp=-1
block 1: src=(16,16) size=16x16 delta_qp=0
block 2: src=(32,32) size=16x16 delta_qp=1

Testing av_video_enc_params_create_side_data()
side_data: OK, type=0, nb_blocks=2
side_data block 0: delta_qp=5

Testing NONE type
NONE: OK, type=-1
