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some more printfs 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@753 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi_esp 2001-05-10 13:20:56 +00:00
parent 07e88fd65f
commit 4c3818cc9f
1 changed files with 11 additions and 6 deletions
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17
TOOLS/audio-block2.c
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@ -1,7 +1,8 @@
// This small util discovers your audio driver's behaviour // This small util discovers your audio driver's behaviour
#define OUTBURST 512 //#define OUTBURST 512
//#define OUTBURST 4096 //#define OUTBURST 4096
#define MAX_OUTBURST 32768
#include <stdio.h> #include <stdio.h>
@ -24,7 +25,7 @@ unsigned int GetTimer(){
return (tv.tv_sec*1000000+tv.tv_usec); return (tv.tv_sec*1000000+tv.tv_usec);
} }
static unsigned char a_buffer[OUTBURST]; static unsigned char a_buffer[MAX_OUTBURST];
void inline print_info(int audio_fd){ void inline print_info(int audio_fd){
#if 1 #if 1
@ -42,6 +43,7 @@ int main(){
int audio_fd; int audio_fd;
char *dsp="/dev/dsp"; char *dsp="/dev/dsp";
unsigned int t0,t1,t2; unsigned int t0,t1,t2;
int outburst;
audio_fd=open(dsp, O_WRONLY); audio_fd=open(dsp, O_WRONLY);
if(audio_fd<0){ if(audio_fd<0){
@ -60,6 +62,7 @@ int main(){
r=0; ioctl (audio_fd, SNDCTL_DSP_GETBLKSIZE, &r); r=0; ioctl (audio_fd, SNDCTL_DSP_GETBLKSIZE, &r);
printf("fragment size = %d\n",r); printf("fragment size = %d\n",r);
outburst=r; if(outburst>4096) outburst=4096;
print_info(audio_fd); print_info(audio_fd);
@ -71,17 +74,19 @@ while(xxx-->0){
struct timeval tv; struct timeval tv;
FD_ZERO(&rfds); FD_SET(audio_fd,&rfds); FD_ZERO(&rfds); FD_SET(audio_fd,&rfds);
tv.tv_sec=0; tv.tv_usec = 0; tv.tv_sec=0; tv.tv_usec = 0;
if(select(audio_fd+1, NULL, &rfds, NULL, &tv)) c=' '; // if(select(audio_fd+1, NULL, &rfds, NULL, &tv)) c=' ';
// print_info(audio_fd); print_info(audio_fd);
r=write(audio_fd,a_buffer,OUTBURST); r=0; ioctl (audio_fd, SNDCTL_DSP_GETODELAY, &r); printf("delay = %d\n",r);
r=write(audio_fd,a_buffer,outburst);
t2=GetTimer(); t2=GetTimer();
if(r<0) printf("Error writting to device\n"); else if(r<0) printf("Error writting to device\n"); else
if(r==0) printf("EOF writting to device???\n"); else { if(r==0) printf("EOF writting to device???\n"); else {
printf("%c %6.3f %6.3f [%6d] writting %3d of %3d bytes in %7d us\n",c, printf("%c %6.3f %6.3f [%6d] writting %3d of %3d bytes in %7d us\n",c,
(float)audio_buffer_size/(44100.0f*4.0f),(float)(t1-t0)*0.000001f, (float)audio_buffer_size/(44100.0f*4.0f),(float)(t1-t0)*0.000001f,
audio_buffer_size,r,OUTBURST,t2-t1); audio_buffer_size,r,outburst,t2-t1);
audio_buffer_size+=r; audio_buffer_size+=r;
} }
t1=t2; t1=t2;