Max pool output in inception network

Course Q&A Deep Learning Specialization Convolutional Neural Networks
1

In Inception Network Motivation video of week 2 of cnn, Andrew said the output of pooling to be (28,28,32) for a input of (28,28,192).
Time:- 2:10
I think in pooling we only have one 2d filter of size f and thus the number of channel at output is equal to no of channel at input

2

Andrew later clarified in the next video that the max pooling layer was followed by a conv layer with 32 filters.