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/*
* Copyright © 2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWAR OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Chen, Peng <chen.c.peng@intel.com>
*
*/
#include "intel_driver.h"
#include "gen9_hevc_enc_utils.h"
static unsigned int
hevc_get_max_mbps(unsigned int level_idc)
{
unsigned int max_bps = 0;
switch (level_idc) {
case 30:
max_bps = 552960;
break;
case 60:
max_bps = 686400;
break;
case 90:
max_bps = 13762560;
break;
case 93:
max_bps = 33177600;
break;
case 120:
case 123:
max_bps = 62668800;
break;
case 126:
case 129:
max_bps = 133693440;
break;
case 150:
case 153:
max_bps = 267386880;
break;
case 156:
max_bps = 534773760;
break;
case 180:
max_bps = 1002700800;
break;
case 183:
max_bps = 2005401600;
break;
case 186:
max_bps = 4010803200;
break;
default:
max_bps = 13762560;
break;
}
return max_bps;
}
unsigned int
gen9_hevc_get_profile_level_max_frame(VAEncSequenceParameterBufferHEVC *seq_param,
unsigned int user_max_frame_size,
unsigned int frame_rate)
{
double bits_per_mb, tmp_f;
int num_mb_per_frame;
unsigned int max_mbps;
unsigned long long max_byte_per_pic, max_byte_per_pic_not0;
int profile_level_max_frame;
double frameRateD = 100;
bits_per_mb = 192;
if (seq_param->seq_fields.bits.chroma_format_idc == 0)
max_mbps = hevc_get_max_mbps(seq_param->general_level_idc) / 16 / 16;
else
max_mbps = (int)(((double)hevc_get_max_mbps(seq_param->general_level_idc)) * 1.5 / 16 / 16);
num_mb_per_frame = ALIGN(seq_param->pic_width_in_luma_samples, 16) *
ALIGN(seq_param->pic_height_in_luma_samples, 16) / 256;
tmp_f = (double)num_mb_per_frame;
if (tmp_f < max_mbps / 172)
tmp_f = max_mbps / 172;
max_byte_per_pic = (unsigned long long)(tmp_f * bits_per_mb);
max_byte_per_pic_not0 =
(unsigned long long)((((double)max_mbps * frameRateD) /
(double)frame_rate) * bits_per_mb);
if (user_max_frame_size) {
profile_level_max_frame = (unsigned int)MIN(user_max_frame_size, max_byte_per_pic);
profile_level_max_frame = (unsigned int)MIN(max_byte_per_pic_not0, profile_level_max_frame);
} else
profile_level_max_frame = (unsigned int)MIN(max_byte_per_pic_not0, max_byte_per_pic);
return MIN(profile_level_max_frame,
seq_param->pic_width_in_luma_samples * seq_param->pic_height_in_luma_samples);
}
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