The bit rate in the SPS can be scaled by an exponent, which allows to reduce the number of bits in the SPS in case of high bit rates. The driver did not scale the bitrate, but used a scaling exponent of 0. Fix this by properly calculating the scaling factor and writing the bit rate as value and scaling factor into the SPS. Signed-off-by: Michael Tretter <m.tretter@xxxxxxxxxxxxxx> --- drivers/media/platform/allegro-dvt/allegro-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c index 8bcb40637c93..9cd903bab0ca 100644 --- a/drivers/media/platform/allegro-dvt/allegro-core.c +++ b/drivers/media/platform/allegro-dvt/allegro-core.c @@ -1558,8 +1558,9 @@ static ssize_t allegro_h264_write_sps(struct allegro_channel *channel, sps->vui.nal_hrd_parameters_present_flag = 0; sps->vui.vcl_hrd_parameters_present_flag = 1; sps->vui.vcl_hrd_parameters.cpb_cnt_minus1 = 0; - sps->vui.vcl_hrd_parameters.bit_rate_scale = 0; /* See Rec. ITU-T H.264 (04/2017) p. 410 E-53 */ + sps->vui.vcl_hrd_parameters.bit_rate_scale = + ffs(channel->bitrate_peak) - 6; sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] = channel->bitrate_peak / (1 << (6 + sps->vui.vcl_hrd_parameters.bit_rate_scale)) - 1; /* See Rec. ITU-T H.264 (04/2017) p. 410 E-54 */ -- 2.30.2
