[Milhouse]

For anyone looking to bump their h264 frequency, the settings required depend on the plls and how close you can get with integer divisors (see here for formula).

A few options:

With default core_freq:

Code:

gpu_freq=275
force_turbo=1

should get a h264_freq=275 (along with all other gpu freqs)

When overclocking core_freq (in this example, to 500Mhz):

Code:

core_freq=500
gpu_freq=275
avoid_pwm_pll=1
force_turbo=1

should get a h264_freq=275.

h264 should be fine at 400, the following should work:

Code:

gpu_freq=400
v3d_freq=300
sdram_freq=500
avoid_pwm_pll=1
force_turbo=1

If you don't want force_turbo it's a bit trickier. You have to go higher.

Code:

h264_freq_min=333
over_voltage_min=2

This should also work:

Code:

gpu_freq_min=240
h264_freq_min=300
over_voltage_min=2