int cst_track_save_est_binary(cst_track *t, const char *filename)
{
cst_file fd;
float foo;
int i, j;
if ((fd = cst_fopen(filename, CST_OPEN_WRITE | CST_OPEN_BINARY)) == NULL)
{
cst_errmsg("cst_track_save_est_binary: can't open file \"%s\"\n",
filename);
return -1;
}
cst_fprintf(fd, "EST_File Track\n");
cst_fprintf(fd, "DataType binary\n");
cst_fprintf(fd, "ByteOrder %s\n",
CST_LITTLE_ENDIAN ? BYTE_ORDER_LITTLE : BYTE_ORDER_BIG);
cst_fprintf(fd, "NumFrames %d\n", t->num_frames);
cst_fprintf(fd, "NumChannels %d\n", t->num_channels);
cst_fprintf(fd, "BreaksPresent true\n");
cst_fprintf(fd, "EST_Header_End\n");
foo = 1.0; /* put a bogus 'breaks' value in for now */
for (i = 0; i < t->num_frames; i++)
{
cst_fwrite(fd, t->times + i, sizeof(float), 1);
cst_fwrite(fd, &foo, sizeof(float), 1);
for (j = 0; j < t->num_channels; j++)
cst_fwrite(fd, &(t->frames[i][j]), sizeof(float), 1);
}
cst_fclose(fd);
return 0;
}
static int play_wave_from_socket(snd_header *header,int audiostream)
{
/* Read audio from stream and play it to audio device, converting */
/* it to pcm if required */
int num_samples;
int sample_width;
cst_audiodev *audio_device;
int q,i,n,r;
unsigned char bytes[CST_AUDIOBUFFSIZE];
short shorts[CST_AUDIOBUFFSIZE];
cst_file fff;
fff = cst_fopen("/tmp/awb.wav",CST_OPEN_WRITE|CST_OPEN_BINARY);
if ((audio_device = audio_open(header->sample_rate,1,
(header->encoding == CST_SND_SHORT) ?
CST_AUDIO_LINEAR16 : CST_AUDIO_LINEAR8)) == NULL)
{
cst_errmsg("play_wave_from_socket: can't open audio device\n");
return -1;
}
if (header->encoding == CST_SND_SHORT)
sample_width = 2;
else
sample_width = 1;
num_samples = header->data_size / sample_width;
/* we naively let the num_channels sort itself out */
for (i=0; i < num_samples; i += r/2)
{
if (num_samples > i+CST_AUDIOBUFFSIZE)
n = CST_AUDIOBUFFSIZE;
else
n = num_samples-i;
if (header->encoding == CST_SND_ULAW)
{
r = read(audiostream,bytes,n);
for (q=0; q<r; q++)
shorts[q] = cst_ulaw_to_short(bytes[q]);
r *= 2;
}
else /* if (header->encoding == CST_SND_SHORT) */
{
r = read(audiostream,shorts,n*2);
if (CST_LITTLE_ENDIAN)
for (q=0; q<r/2; q++)
shorts[q] = SWAPSHORT(shorts[q]);
}
if (r <= 0)
{ /* I'm not getting any data from the server */
audio_close(audio_device);
return CST_ERROR_FORMAT;
}
for (q=r; q > 0; q-=n)
{
n = audio_write(audio_device,shorts,q);
cst_fwrite(fff,shorts,2,q);
if (n <= 0)
{
audio_close(audio_device);
return CST_ERROR_FORMAT;
}
}
}
audio_close(audio_device);
cst_fclose(fff);
return CST_OK_FORMAT;
}
