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This commit is contained in:
Jaroslav Kysela 1998-11-27 15:07:56 +00:00
parent d9087a8773
commit fb1938d29f
6 changed files with 569 additions and 553 deletions
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173
test/pause.c
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@ -4,95 +4,98 @@
#define AU_FILE "/home/ftp/pub/audio/AlwaysOnTheRun.au"
static void show_playback_status( void *handle )
static void show_playback_status(void *handle)
{
snd_pcm_playback_status_t pstatus;
snd_pcm_playback_status_t pstatus;
if ( snd_pcm_playback_status( handle, &pstatus ) < 0 ) {
perror( "playback status" );
return;
}
printf( "PCM playback status:\n" );
printf( " rate = %i\n", pstatus.rate );
printf( " fragments = %i\n", pstatus.fragments );
printf( " fragment_size = %i\n", pstatus.fragment_size );
printf( " count = %i\n", pstatus.count );
printf( " queue = %i\n", pstatus.queue );
printf( " underrun = %i\n", pstatus.underrun );
printf( " time = %i.%i\n", (int)pstatus.time.tv_sec, (int)pstatus.time.tv_usec );
printf( " stime = %i.%i\n", (int)pstatus.stime.tv_sec, (int)pstatus.stime.tv_usec );
printf( " scount = %i\n", pstatus.scount );
if (snd_pcm_playback_status(handle, &pstatus) < 0) {
perror("playback status");
return;
}
printf("PCM playback status:\n");
printf(" rate = %i\n", pstatus.rate);
printf(" fragments = %i\n", pstatus.fragments);
printf(" fragment_size = %i\n", pstatus.fragment_size);
printf(" count = %i\n", pstatus.count);
printf(" queue = %i\n", pstatus.queue);
printf(" underrun = %i\n", pstatus.underrun);
printf(" time = %i.%i\n", (int) pstatus.time.tv_sec, (int) pstatus.time.tv_usec);
printf(" stime = %i.%i\n", (int) pstatus.stime.tv_sec, (int) pstatus.stime.tv_usec);
printf(" scount = %i\n", pstatus.scount);
}
void main( void )
void main(void)
{
int card = 0, device = 0, err, fd, count, count1, size, idx;
void *handle;
snd_pcm_format_t format;
snd_pcm_playback_status_t status;
char *buffer, *buffer1;
int card = 0, device = 0, err, fd, count, count1, size, idx;
void *handle;
snd_pcm_format_t format;
snd_pcm_playback_status_t status;
char *buffer, *buffer1;
buffer = (char *)malloc( 512 * 1024 );
if ( !buffer ) return;
if ( (err = snd_pcm_open( &handle, card, device, SND_PCM_OPEN_PLAYBACK )) < 0 ) {
fprintf( stderr, "open failed: %s\n", snd_strerror( err ) );
return;
}
format.format = SND_PCM_SFMT_MU_LAW;
format.rate = 8000;
format.channels = 1;
if ( (err = snd_pcm_playback_format( handle, &format )) < 0 ) {
fprintf( stderr, "format setup failed: %s\n", snd_strerror( err ) );
snd_pcm_close( handle );
return;
}
if ( (err = snd_pcm_playback_status( handle, &status )) < 0 ) {
fprintf( stderr, "status failed: %s\n", snd_strerror( err ) );
snd_pcm_close( handle );
return;
}
fd = open( AU_FILE, O_RDONLY );
if ( fd < 0 ) {
perror( "open file" );
snd_pcm_close( handle );
return;
}
idx = 0;
count = read( fd, buffer, 512 * 1024 );
if ( count <= 0 ) {
perror( "read from file" );
snd_pcm_close( handle );
return;
}
close( fd );
if ( !memcmp( buffer, ".snd", 4 ) ) {
idx = (buffer[4]<<24)|(buffer[5]<<16)|(buffer[6]<<8)|(buffer[7]);
if ( idx > 128 ) idx = 128;
if ( idx > count ) idx = count;
}
buffer1 = buffer + idx;
count -= idx;
if ( count < 256 * 1024 ) {
perror( "small count < 256k" );
snd_pcm_close( handle );
return;
}
count1 = status.fragment_size * 12;
show_playback_status( handle );
size = snd_pcm_write( handle, buffer1, count1 );
sleep( 2 );
show_playback_status( handle );
printf( "Pause.. Bytes written %i from %i...\n", size, count1 );
count -= count1;
buffer1 += count1;
snd_pcm_playback_pause( handle, 1 );
show_playback_status( handle );
sleep( 5 );
printf( "Pause end..\n" );
snd_pcm_playback_pause( handle, 0 );
show_playback_status( handle );
size = snd_pcm_write( handle, buffer1, count );
printf( "Pause end.. Bytes written %i from %i...\n", size, count );
snd_pcm_close( handle );
free( buffer );
buffer = (char *) malloc(512 * 1024);
if (!buffer)
return;
if ((err = snd_pcm_open(&handle, card, device, SND_PCM_OPEN_PLAYBACK)) < 0) {
fprintf(stderr, "open failed: %s\n", snd_strerror(err));
return;
}
format.format = SND_PCM_SFMT_MU_LAW;
format.rate = 8000;
format.channels = 1;
if ((err = snd_pcm_playback_format(handle, &format)) < 0) {
fprintf(stderr, "format setup failed: %s\n", snd_strerror(err));
snd_pcm_close(handle);
return;
}
if ((err = snd_pcm_playback_status(handle, &status)) < 0) {
fprintf(stderr, "status failed: %s\n", snd_strerror(err));
snd_pcm_close(handle);
return;
}
fd = open(AU_FILE, O_RDONLY);
if (fd < 0) {
perror("open file");
snd_pcm_close(handle);
return;
}
idx = 0;
count = read(fd, buffer, 512 * 1024);
if (count <= 0) {
perror("read from file");
snd_pcm_close(handle);
return;
}
close(fd);
if (!memcmp(buffer, ".snd", 4)) {
idx = (buffer[4] << 24) | (buffer[5] << 16) | (buffer[6] << 8) | (buffer[7]);
if (idx > 128)
idx = 128;
if (idx > count)
idx = count;
}
buffer1 = buffer + idx;
count -= idx;
if (count < 256 * 1024) {
perror("small count < 256k");
snd_pcm_close(handle);
return;
}
count1 = status.fragment_size * 12;
show_playback_status(handle);
size = snd_pcm_write(handle, buffer1, count1);
sleep(2);
show_playback_status(handle);
printf("Pause.. Bytes written %i from %i...\n", size, count1);
count -= count1;
buffer1 += count1;
snd_pcm_playback_pause(handle, 1);
show_playback_status(handle);
sleep(5);
printf("Pause end..\n");
snd_pcm_playback_pause(handle, 0);
show_playback_status(handle);
size = snd_pcm_write(handle, buffer1, count);
printf("Pause end.. Bytes written %i from %i...\n", size, count);
snd_pcm_close(handle);
free(buffer);
}