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passing samplerate to LPCM writer - 44, 32 and 96khz are also supported from now

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4301 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-01-22 02:15:23 +00:00
parent 35b41e3920
commit 1908064274
1 changed files with 18 additions and 2 deletions
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20
libao2/ao_mpegpes.c
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@ -22,6 +22,9 @@ static int control(int cmd,int arg){
return -1; return -1;
} }
static int freq_id=0;
// open & setup audio device // open & setup audio device
// return: 1=success 0=fail // return: 1=success 0=fail
static int init(int rate,int channels,int format,int flags){ static int init(int rate,int channels,int format,int flags){
@ -29,6 +32,16 @@ static int init(int rate,int channels,int format,int flags){
ao_data.outburst=2000; ao_data.outburst=2000;
ao_data.format=format; ao_data.format=format;
switch(rate){
case 48000: freq_id=0;break;
case 96000: freq_id=1;break;
case 44100: freq_id=2;break;
case 32000: freq_id=3;break;
default:
fprintf(stderr,"ao_mpegpes: %d Hz not supported, try to resample (RTFM)\n",rate);
return 0;
}
return 1; return 1;
} }
@ -55,7 +68,7 @@ static void audio_resume()
} }
void send_pes_packet(unsigned char* data,int len,int id,int timestamp); void send_pes_packet(unsigned char* data,int len,int id,int timestamp);
void send_lpcm_packet(unsigned char* data,int len,int id,int timestamp); void send_lpcm_packet(unsigned char* data,int len,int id,int timestamp,int freq_id);
extern int vo_pts; extern int vo_pts;
// return: how many bytes can be played without blocking // return: how many bytes can be played without blocking
@ -64,6 +77,7 @@ static int get_space(){
int y; int y;
if(x<=0) return 0; if(x<=0) return 0;
y=48000*4*x;y/=ao_data.outburst;y*=ao_data.outburst; y=48000*4*x;y/=ao_data.outburst;y*=ao_data.outburst;
// if(y>2000) y=2000;
// printf("diff: %5.3f -> %d \n",x,y); // printf("diff: %5.3f -> %d \n",x,y);
return y; return y;
} }
@ -77,8 +91,10 @@ static int play(void* data,int len,int flags){
else { else {
int i; int i;
unsigned short *s=data; unsigned short *s=data;
// if(len>2000) len=2000;
printf("ao_mpegpes: len=%d \n",len);
for(i=0;i<len/2;i++) s[i]=(s[i]>>8)|(s[i]<<8); // le<->be for(i=0;i<len/2;i++) s[i]=(s[i]>>8)|(s[i]<<8); // le<->be
send_lpcm_packet(data,len,0xA0,ao_data.pts); send_lpcm_packet(data,len,0xA0,ao_data.pts,freq_id);
} }
return len; return len;
} }