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ffmpeg马赛克命令:
ffmpeg -i input.mp4 -vf ‘frei0r=pixeliz0r:0.02|0.02’ -f mp4 output.mp4 -yffmpeg -i input.mp4 -vf 'frei0r=pixeliz0r:0.02|0.02' -f mp4 output.mp4 -y
设置马赛克块像素的大小:
block_size_x = 1 + ( ((double)param) * (inst->width/2)) 设置pixeliz0r参数配置像素块大小。void f0r_set_param_value(f0r_instance_t instance, f0r_param_t param, int param_index){ assert(instance); pixelizer_instance_t* inst = (pixelizer_instance_t*)instance; switch(param_index) { case 0: // scale to [1..width] inst->block_size_x = 1 + ( *((double*)param) * (inst->width/2)) ; break; case 1: // scale to [1..height] inst->block_size_y = 1 + ( *((double*)param) * (inst->height/2)) ; break; } }
https://github.com/dyne/frei0r/blob/master/src/filter/pixeliz0r/pixeliz0r.c
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