now gop_size <= (max_b_frames + 1) * p_per_i + 1 (IDR frame),
so celing p_per_i = (gop_size - 1 + max_b_frames) / (max_b_frames + 1)
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Leilei <leilei.shang@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>