[utils]: add mpp_frame write file function to utils

git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@921 6e48237b-75ef-9749-8fc9-41990f28c85a

utils/utils.c

@@ -25,8 +25,52 @@ void _show_options(int count, OptionInfo *options)
 {
     int i;
     for (i = 0; i < count; i++) {
-        mpp_log("-%s  %s\t\t%s\n",
+        mpp_log("-%s  %-16s\t%s\n",
                 options[i].name, options[i].argname, options[i].help);
     }
 }
 
+void dump_mpp_frame_to_file(MppFrame frame, FILE *fp)
+{
+    RK_U32 width    = 0;
+    RK_U32 height   = 0;
+    RK_U32 h_stride = 0;
+    RK_U32 v_stride = 0;
+    MppFrameFormat fmt  = MPP_FMT_YUV420SP;
+    MppBuffer buffer    = NULL;
+    RK_U8 *base = NULL;
+
+    if (NULL == fp || NULL == frame)
+        return ;
+
+    width    = mpp_frame_get_width(frame);
+    height   = mpp_frame_get_height(frame);
+    h_stride = mpp_frame_get_hor_stride(frame);
+    v_stride = mpp_frame_get_ver_stride(frame);
+    fmt      = mpp_frame_get_fmt(frame);
+    buffer   = mpp_frame_get_buffer(frame);
+
+    if (NULL == buffer)
+        return ;
+
+    base = (RK_U8 *)mpp_buffer_get_ptr(buffer);
+
+    switch (fmt) {
+    case MPP_FMT_YUV420SP : {
+        RK_U32 i;
+        RK_U8 *base_y = base;
+        RK_U8 *base_c = base + h_stride * v_stride;
+
+        for (i = 0; i < height; i++, base_y += h_stride) {
+            fwrite(base_y, 1, width, fp);
+        }
+        for (i = 0; i < height / 2; i++, base_c += h_stride) {
+            fwrite(base_c, 1, width, fp);
+        }
+    } break;
+    default : {
+        mpp_err("not supported format %d\n", fmt);
+    } break;
+    }
+}
+

utils/utils.h

@@ -17,6 +17,9 @@
 #ifndef __UTILS_H__
 #define __UTILS_H__
 
+#include <stdio.h>
+#include "mpp_frame.h"
+
 typedef struct OptionInfo_t {
     const char*     name;
     const char*     argname;
@@ -33,6 +36,7 @@ extern "C" {
 #endif
 
 void _show_options(int count, OptionInfo *options);
+void dump_mpp_frame_to_file(MppFrame frame, FILE *fp);
 
 #ifdef __cplusplus
 }