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https://github.com/nyanmisaka/mpp.git
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f96141033d
Add checksum calculation function and file access function for debug. NOTE: checksum for YUV image and for luma only so far. Change-Id: I54509bebd64f5e5143e14824733d9c25af9db204 Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
/*
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* Copyright 2015 Rockchip Electronics Co. LTD
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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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#define MODULE_TAG "utils"
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#include <string.h>
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#include "mpp_log.h"
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#include "utils.h"
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void _show_options(int count, OptionInfo *options)
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{
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int i;
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for (i = 0; i < count; i++) {
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mpp_log("-%s %-16s\t%s\n",
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options[i].name, options[i].argname, options[i].help);
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}
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}
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void dump_mpp_frame_to_file(MppFrame frame, FILE *fp)
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{
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RK_U32 width = 0;
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RK_U32 height = 0;
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RK_U32 h_stride = 0;
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RK_U32 v_stride = 0;
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MppFrameFormat fmt = MPP_FMT_YUV420SP;
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MppBuffer buffer = NULL;
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RK_U8 *base = NULL;
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if (NULL == fp || NULL == frame)
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return ;
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width = mpp_frame_get_width(frame);
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height = mpp_frame_get_height(frame);
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h_stride = mpp_frame_get_hor_stride(frame);
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v_stride = mpp_frame_get_ver_stride(frame);
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fmt = mpp_frame_get_fmt(frame);
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buffer = mpp_frame_get_buffer(frame);
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if (NULL == buffer)
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return ;
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base = (RK_U8 *)mpp_buffer_get_ptr(buffer);
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switch (fmt) {
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case MPP_FMT_YUV420SP : {
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RK_U32 i;
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RK_U8 *base_y = base;
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RK_U8 *base_c = base + h_stride * v_stride;
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for (i = 0; i < height; i++, base_y += h_stride) {
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fwrite(base_y, 1, width, fp);
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}
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for (i = 0; i < height / 2; i++, base_c += h_stride) {
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fwrite(base_c, 1, width, fp);
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}
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} break;
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default : {
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mpp_err("not supported format %d\n", fmt);
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} break;
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}
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}
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void calc_frm_checksum(MppFrame frame, RK_U8 *sum)
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{
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RK_U32 checksum = 0;
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RK_U8 xor_mask;
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RK_U32 y, x;
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RK_U32 width = mpp_frame_get_width(frame);
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RK_U32 height = mpp_frame_get_height(frame);
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RK_U32 stride = mpp_frame_get_hor_stride(frame);
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RK_U8 *buf = (RK_U8 *)mpp_buffer_get_ptr(mpp_frame_get_buffer(frame));
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x++) {
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xor_mask = (x & 0xff) ^ (y & 0xff) ^ (x >> 8) ^ (y >> 8);
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checksum = (checksum + ((buf[y * stride + x] & 0xff) ^ xor_mask)) & 0xffffffff;
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}
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}
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sum[0] = (checksum >> 24) & 0xff;
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sum[1] = (checksum >> 16) & 0xff;
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sum[2] = (checksum >> 8) & 0xff;
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sum[3] = checksum & 0xff;
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}
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void write_checksum(FILE *fp, RK_U8 *sum)
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{
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RK_S32 i;
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for (i = 0; i < 16; i++)
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fprintf(fp, "%02hhx", sum[i]);
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fprintf(fp, "\n");
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}
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void read_checksum(FILE *fp, RK_U8 *sum)
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{
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RK_S32 i;
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for (i = 0; i < 16; i++)
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fscanf(fp, "%02hhx", sum + i);
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fscanf(fp, "\n");
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}
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