/* return: number of bytes */
int32 general_output_convert(int32 *buf, int32 count)
{
int32 bytes;
if(!(play_mode->encoding & PE_MONO))
count *= 2; /* Stereo samples */
bytes = count;
if(play_mode->encoding & PE_16BIT)
{
bytes *= 2;
if(play_mode->encoding & PE_BYTESWAP)
{
if(play_mode->encoding & PE_SIGNED)
s32tos16x(buf, count);
else
s32tou16x(buf, count);
}
else if(play_mode->encoding & PE_SIGNED)
s32tos16(buf, count);
else
s32tou16(buf, count);
}
else if(play_mode->encoding & PE_24BIT) {
bytes *= 3;
if(play_mode->encoding & PE_BYTESWAP)
{
if(play_mode->encoding & PE_SIGNED)
s32tos24x(buf, count);
else
s32tou24x(buf, count);
} else if(play_mode->encoding & PE_SIGNED)
s32tos24(buf, count);
else
s32tou24(buf, count);
}
else if(play_mode->encoding & PE_ULAW)
s32toulaw(buf, count);
else if(play_mode->encoding & PE_ALAW)
s32toalaw(buf, count);
else if(play_mode->encoding & PE_SIGNED)
s32tos8(buf, count);
else
s32tou8(buf, count);
return bytes;
}
static void output_data(int32 *buf, int32 count)
{
if (!(dpm.encoding & PE_MONO)) count*=2; /* Stereo samples */
if (dpm.encoding & PE_16BIT)
{
/* Convert data to signed 16-bit PCM */
s32tos16(buf, count);
/* Write the data out. Linux likes to give an EINTR if you suspend
a program while waiting on a write, so we may need to retry. */
while ((-1==write(dpm.fd, buf, count * 2)) && errno==EINTR)
;
}
else
{
/* Convert to 8-bit unsigned and write out. */
s32tou8(buf, count);
while ((-1==write(dpm.fd, buf, count)) && errno==EINTR)
;
}
}
static void output_data(int32 *buf, int32 count)
{
int ocount;
if (!(dpm.encoding & PE_MONO)) count*=2; /* Stereo samples */
ocount = count;
if (ocount) {
if (dpm.encoding & PE_16BIT)
{
/* Convert data to signed 16-bit PCM */
s32tos16(buf, count);
ocount *= 2;
}
else
{
/* Convert to 8-bit unsigned and write out. */
s32tou8(buf, count);
}
}
b_out(dpm.fd, (int *)buf, ocount);
}