mirror of https://github.com/mpv-player/mpv
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
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// gcc test.c -I.. -L. -lMP3 -lm -o test2 -O4
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <sys/soundcard.h>
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#include "mp3lib/mp3.h"
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#include "config.h"
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static FILE* mp3file=NULL;
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int mplayer_audio_read(char *buf,int size){
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return fread(buf,1,size,mp3file);
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}
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#define BUFFLEN 4608
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static unsigned char buffer[BUFFLEN];
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int main(int argc,char* argv[]){
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int len;
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int total=0;
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float length;
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int r;
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int audio_fd;
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mp3file=fopen((argc>1)?argv[1]:"test.mp3","rb");
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if(!mp3file){ printf("file not found\n"); exit(1); }
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// MPEG Audio:
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#ifdef USE_FAKE_MONO
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MP3_Init(0);
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#else
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MP3_Init();
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#endif
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MP3_samplerate=MP3_channels=0;
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len=MP3_DecodeFrame(buffer,-1);
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audio_fd=open("/dev/dsp", O_WRONLY);
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if(audio_fd<0){ printf("Can't open audio device\n");exit(1); }
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r=AFMT_S16_LE;ioctl (audio_fd, SNDCTL_DSP_SETFMT, &r);
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r=MP3_channels-1;ioctl (audio_fd, SNDCTL_DSP_STEREO, &r);
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r=MP3_samplerate;ioctl (audio_fd, SNDCTL_DSP_SPEED, &r);
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printf("audio_setup: using %d Hz samplerate (requested: %d)\n",r,MP3_samplerate);
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while(1){
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int len2;
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if(len==0) len=MP3_DecodeFrame(buffer,-1);
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if(len<=0) break; // EOF
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// play it
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len2=write(audio_fd,buffer,len);
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if(len2<0) break; // ERROR?
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len-=len2; total+=len2;
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if(len>0){
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// this shouldn't happen...
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memcpy(buffer,buffer+len2,len);
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putchar('!');fflush(stdout);
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}
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}
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fclose(mp3file);
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}
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