mp3lib/test.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #define DUMP_PCM
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23
  24 #include <unistd.h>
  25 #include <sys/time.h>
  26
  27 #include "config.h"
  28 #include "mp3lib/mp3.h"
  29 #include "cpudetect.h"
  30
  31 static inline unsigned int GetTimer(void){
  32   struct timeval tv;
  33   struct timezone tz;
  34 //  float s;
  35   gettimeofday(&tv,&tz);
  36 //  s=tv.tv_usec;s*=0.000001;s+=tv.tv_sec;
  37   return tv.tv_sec * 1000000 + tv.tv_usec;
  38 }
  39
  40 static FILE* mp3file=NULL;
  41
  42 int mplayer_audio_read(char *buf,int size){
  43     return fread(buf,1,size,mp3file);
  44 }
  45
  46 #define BUFFLEN 4608
  47 static unsigned char buffer[BUFFLEN];
  48
  49 int main(int argc,char* argv[]){
  50   int len;
  51   int total=0;
  52   unsigned int time1;
  53   float length;
  54 #ifdef DUMP_PCM
  55   FILE *f=NULL;
  56   f=fopen("test.pcm","wb");
  57 #endif
  58
  59   mp3file=fopen((argc>1)?argv[1]:"test.mp3","rb");
  60   if(!mp3file){  printf("file not found\n");  exit(1); }
  61
  62   GetCpuCaps(&gCpuCaps);
  63
  64   // MPEG Audio:
  65 #ifdef CONFIG_FAKE_MONO
  66   MP3_Init(0);
  67 #else
  68   MP3_Init();
  69 #endif
  70   MP3_samplerate=MP3_channels=0;
  71
  72   time1=GetTimer();
  73   while((len=MP3_DecodeFrame(buffer,-1))>0 && total<2000000){
  74       total+=len;
  75       // play it
  76 #ifdef DUMP_PCM
  77       fwrite(buffer,len,1,f);
  78 #endif
  79       //putchar('.');fflush(stdout);
  80   }
  81   time1=GetTimer()-time1;
  82   length=(float)total/(float)(MP3_samplerate*MP3_channels*2);
  83   printf("\nDecoding time: %8.6f\n",(float)time1*0.000001f);
  84   printf("Uncompressed size: %d bytes  (%8.3f secs)\n",total,length);
  85   printf("CPU usage at normal playback: %5.2f %%\n",time1*0.0001f/length);
  86
  87   fclose(mp3file);
  88   return 0;
  89 }