Diff: benchmark_BaseJpegDecode.cpp

Revision:

1:58dfd5386a92

Child:

3:2709bbf8baae

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/benchmark_BaseJpegDecode.cpp	Mon Oct 08 11:38:57 2012 +0000
@@ -0,0 +1,82 @@
+#if 0
+#include "mbed.h"
+#include "BaseJpegDecode.h"
+#include <vector>
+
+#define DBG(...) do{fprintf(stderr,"[%s@%d] ",__PRETTY_FUNCTION__,__LINE__);fprintf(stderr,__VA_ARGS__);} while(0);
+#define ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);};
+
+LocalFileSystem local("local");
+DigitalOut myled(LED1);
+Serial pc(USBTX, USBRX);
+
+class JpegDecode : public BaseJpegDecode {
+public:
+    JpegDecode();
+    virtual void outputDC(int mcu, int block, int value);
+    virtual void outputAC(int mcu, int block, int scan, int value);
+    virtual void outputMARK(uint8_t c);
+    int DC_count;
+    int AC_count;
+};
+
+JpegDecode::JpegDecode()
+{
+    DC_count = 0;
+    AC_count = 0;
+}
+
+void JpegDecode::outputDC(int mcu, int block, int value)
+{
+    DC_count++;
+}
+
+void JpegDecode::outputAC(int mcu, int block, int scan, int value)
+{
+    AC_count++;
+}
+
+void JpegDecode::outputMARK(uint8_t c)
+{
+}
+
+int main() {
+    pc.baud(921600);
+    printf("%s\n", __FILE__);
+
+    JpegDecode* decode = new JpegDecode;
+    ASSERT(decode);
+    while(1) {
+        char path[128];
+        printf("JPEG file: ");
+        gets(path);
+        FILE* fp = fopen(path, "rb");
+        if (fp == NULL) {
+            printf("file open error %s\n", path);
+            continue;
+        }
+        vector<uint8_t> image;
+        while(1) {
+            int c = fgetc(fp);
+            if (c == EOF) {
+                break;
+            }
+            image.push_back(c);
+        }
+        fclose(fp);
+        printf("%s %d bytes\n", path, image.size());
+        decode->DC_count = 0;
+        decode->AC_count = 0;
+        Timer t;
+        t.reset();
+        t.start();
+        decode->clear();    
+        for(int i = 0; i < image.size(); i++) {
+            decode->input(image[i]);
+        }
+        t.stop();
+        printf("DC: %d AC: %d benchmark: %d ms\n", decode->DC_count, decode->AC_count, t.read_ms());
+    }     
+}
+
+#endif
\ No newline at end of file