255 lines
12 KiB
C
255 lines
12 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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/*****************************************************************************/
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/* File Includes */
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/*****************************************************************************/
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/* System include files */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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/* User include files */
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#include "ih264_typedefs.h"
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#include "ih264_defs.h"
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#include "iv2.h"
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#include "ive2.h"
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#include "ih264e.h"
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#include "app.h"
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#include "psnr.h"
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/*****************************************************************************/
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/* */
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/* Function Name : init_psnr */
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/* */
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/* Description : Initialize PSNR for the Y, U, V component */
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/* */
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/* Inputs : */
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/* */
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/* Globals : */
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/* */
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/* Processing : */
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/* */
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/* Outputs : */
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/* */
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/* Returns : */
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/* */
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/* Issues : */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 28 12 2005 Ittiam Draft */
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/* */
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/*****************************************************************************/
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void init_psnr(app_ctxt_t *ps_app_ctxt)
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{
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ps_app_ctxt->adbl_psnr[0] = 0;
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ps_app_ctxt->adbl_psnr[1] = 0;
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ps_app_ctxt->adbl_psnr[2] = 0;
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ps_app_ctxt->u4_psnr_cnt = 0;
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}
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/*****************************************************************************/
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/* */
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/* Function Name : compute_psnr */
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/* */
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/* Description : Computes the PSNR for the Y, U, V component */
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/* */
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/* Inputs : */
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/* */
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/* Globals : */
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/* */
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/* Processing : */
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/* */
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/* Outputs : */
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/* */
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/* Returns : */
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/* */
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/* Issues : */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 28 12 2005 Ittiam Draft */
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/* */
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/*****************************************************************************/
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void compute_psnr(app_ctxt_t *ps_app_ctxt, iv_raw_buf_t *ps_buf1, iv_raw_buf_t *ps_buf2)
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{
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WORD32 i, j;
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WORD32 comp;
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DOUBLE df_psnr[3];
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WORD32 wd, ht, strd1, strd2;
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UWORD8 *pu1_buf1, *pu1_buf2;
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WORD32 incr1, incr2;
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printf("\nPicNum %4d\t ", ps_app_ctxt->u4_psnr_cnt);
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for(comp = 0; comp < 3; comp++)
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{
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df_psnr[comp] = 0;
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pu1_buf1 = (UWORD8 *)ps_buf1->apv_bufs[comp];
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pu1_buf2 = (UWORD8 *)ps_buf2->apv_bufs[comp];
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wd = ps_buf1->au4_wd[comp];
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ht = ps_buf1->au4_ht[comp];
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strd1 = ps_buf1->au4_strd[comp] - ps_buf1->au4_wd[comp];
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strd2 = ps_buf2->au4_strd[comp] - ps_buf2->au4_wd[comp];
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incr1 = 1;
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incr2 = 1;
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if((IV_YUV_420SP_UV == ps_buf1->e_color_fmt)
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|| (IV_YUV_420SP_VU == ps_buf1->e_color_fmt))
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{
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switch(comp)
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{
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case 0:
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pu1_buf1 = ps_buf1->apv_bufs[0];
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break;
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case 1:
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if(IV_YUV_420SP_UV == ps_buf1->e_color_fmt)
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pu1_buf1 = (UWORD8 *)ps_buf1->apv_bufs[1];
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else
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pu1_buf1 = (UWORD8 *)ps_buf1->apv_bufs[1] + 1;
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incr1 = 2;
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wd = ps_buf1->au4_wd[0] >> 1;
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ht = ps_buf1->au4_ht[0] >> 1;
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break;
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case 2:
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if(IV_YUV_420SP_UV == ps_buf1->e_color_fmt)
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pu1_buf1 = (UWORD8 *)ps_buf1->apv_bufs[1] + 1;
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else
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pu1_buf1 = ps_buf1->apv_bufs[1];
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incr1 = 2;
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wd = ps_buf1->au4_wd[0] >> 1;
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ht = ps_buf1->au4_ht[0] >> 1;
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strd1 = ps_buf1->au4_strd[1] - ps_buf1->au4_wd[1];
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break;
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}
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}
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if ((IV_YUV_420SP_UV == ps_buf2->e_color_fmt)
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|| (IV_YUV_420SP_VU == ps_buf2->e_color_fmt))
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{
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switch(comp)
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{
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case 0:
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pu1_buf2 = ps_buf2->apv_bufs[0];
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break;
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case 1:
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if(IV_YUV_420SP_UV == ps_buf2->e_color_fmt)
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pu1_buf2 = ps_buf2->apv_bufs[1];
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else
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pu1_buf2 = (UWORD8 *)ps_buf2->apv_bufs[1] + 1;
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incr2 = 2;
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wd = ps_buf2->au4_wd[0] >> 1;
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ht = ps_buf2->au4_ht[0] >> 1;
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break;
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case 2:
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if(IV_YUV_420SP_UV == ps_buf2->e_color_fmt)
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pu1_buf2 = (UWORD8 *)ps_buf2->apv_bufs[1] + 1;
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else
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pu1_buf2 = ps_buf2->apv_bufs[1];
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incr2 = 2;
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wd = ps_buf2->au4_wd[0] >> 1;
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ht = ps_buf2->au4_ht[0] >> 1;
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strd2 = ps_buf2->au4_strd[1] - ps_buf2->au4_wd[1];
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break;
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}
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}
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for(i = 0; i < ht; i++)
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{
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for(j = 0; j < wd; j++)
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{
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WORD32 diff;
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diff = (*pu1_buf1 - *pu1_buf2);
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pu1_buf1 += incr1;
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pu1_buf2 += incr2;
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df_psnr[comp] += diff * diff;
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}
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pu1_buf1 += strd1;
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pu1_buf2 += strd2;
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}
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df_psnr[comp] /= (wd * ht);
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if(df_psnr[comp])
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df_psnr[comp] = 20 * log10(255 / sqrt(df_psnr[comp]));
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else
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df_psnr[comp] = 100;
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ps_app_ctxt->adbl_psnr[comp] += df_psnr[comp];
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switch(comp)
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{
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case 0:
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printf("Y :");
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break;
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case 1:
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printf("U :");
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break;
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case 2:
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printf("V :");
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break;
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default:
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break;
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}
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printf("%2.2f\t", df_psnr[comp]);
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}
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ps_app_ctxt->u4_psnr_cnt++;
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}
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/*****************************************************************************/
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/* */
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/* Function Name : print_average_psnr */
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/* */
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/* Description : Computes the average PSNR for the Y, U, V component */
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/* */
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/* Inputs : */
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/* */
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/* Globals : */
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/* */
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/* Processing : */
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/* */
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/* Outputs : */
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/* */
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/* Returns : */
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/* */
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/* Issues : */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 28 12 2005 Ittiam Draft */
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/* */
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/*****************************************************************************/
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void print_average_psnr(app_ctxt_t *ps_app_ctxt)
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{
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printf("\n");
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printf("Avg PSNR Y : %-2.2f\n", (ps_app_ctxt->adbl_psnr[0] / ps_app_ctxt->u4_psnr_cnt));
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printf("Avg PSNR U : %-2.2f\n", (ps_app_ctxt->adbl_psnr[1] / ps_app_ctxt->u4_psnr_cnt));
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printf("Avg PSNR V : %-2.2f\n", (ps_app_ctxt->adbl_psnr[2] / ps_app_ctxt->u4_psnr_cnt));
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}
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