Modify RAOP volume computation and printing

Compute the absolute value and do not use floor() to print out the
volume.
This commit is contained in:
Julien BLACHE 2010-12-04 16:13:54 +01:00
parent da3900afad
commit 4ac75a316a
1 changed files with 5 additions and 3 deletions

View File

@ -1675,11 +1675,13 @@ raop_volume_convert(int volume)
/* RAOP volume
* -144.0 is off
* 0 - -30.0 maps to 100 - 0
*
* Here, raop_volume is the absolute value
*/
if (volume == 0)
raop_volume = -144.0;
raop_volume = 144.0;
else
raop_volume = -30.0 + ((double)volume * 30.0) / 100.0;
raop_volume = 30.0 - ((double)volume * 30.0) / 100.0;
return raop_volume;
}
@ -1702,7 +1704,7 @@ raop_set_volume_internal(struct raop_session *rs, int volume, evrtsp_req_cb cb)
raop_volume = raop_volume_convert(volume);
/* Don't let locales get in the way here */
ret = evbuffer_add_printf(evbuf, "volume: %d.%06d", (int)raop_volume, (int)(1000000.0 * (raop_volume - floor(raop_volume))));
ret = evbuffer_add_printf(evbuf, "volume: -%d.%06d", (int)raop_volume, (int)(1000000.0 * (raop_volume - (int)raop_volume)));
if (ret < 0)
{
DPRINTF(E_LOG, L_RAOP, "Out of memory for SET_PARAMETER payload (volume)\n");