test.c added for benchmarking

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@789 b3059339-0415-0410-9bf9-f77b7e298cf2

mp3lib/Makefile

@@ -18,6 +18,9 @@ CFLAGS  = $(OPTFLAGS)
 libMP3.a:	.depend $(OBJS)
 	$(AR) r libMP3.a $(OBJS)
 
+test:	libMP3.a test.c
+	$(CC) $(CFLAGS) test.c -o test -I.. -L. -lMP3
+
 all:	libMP3.a
 
 clean:

mp3lib/test.c

@@ -0,0 +1,62 @@
+
+// gcc test.c -I.. -L. -lMP3 -o test -O4
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <unistd.h>
+#include <sys/time.h>
+
+#include "mp3lib/mp3.h"
+#include "config.h"
+
+static inline unsigned int GetTimer(){
+  struct timeval tv;
+  struct timezone tz;
+//  float s;
+  gettimeofday(&tv,&tz);
+//  s=tv.tv_usec;s*=0.000001;s+=tv.tv_sec;
+  return (tv.tv_sec*1000000+tv.tv_usec);
+}  
+
+static FILE* mp3file=NULL;
+
+int mplayer_audio_read(char *buf,int size){
+    return fread(buf,1,size,mp3file);
+}
+
+#define BUFFLEN 4608
+static unsigned char buffer[BUFFLEN];
+
+int main(int argc,char* argv[]){
+  int len;
+  int total=0;
+  unsigned int time1;
+  float length;
+  
+  mp3file=fopen((argc>1)?argv[1]:"test.mp3","rb");
+  if(!mp3file){  printf("file not found\n");  exit(1); }
+
+  // MPEG Audio:
+#ifdef USE_FAKE_MONO
+  MP3_Init(0);
+#else
+  MP3_Init();
+#endif
+  MP3_samplerate=MP3_channels=0;
+  
+  time1=GetTimer();
+  while((len=MP3_DecodeFrame(buffer,-1))>0){
+      total+=len;
+      // play it
+      //putchar('.');fflush(stdout);
+  }
+  time1=GetTimer()-time1;
+  length=(float)total/(float)(MP3_samplerate*MP3_channels*2);
+  printf("\nDecoding time: %8.6f\n",(float)time1*0.000001f);
+  printf("Uncompressed size: %d bytes  (%8.3f secs)\n",total,length);
+  printf("CPU usage at normal playback: %5.2f %\n",time1*0.0001f/length);
+  
+  fclose(mp3file);
+  
+}