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audio: add audio device address helper function

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Add helper function to derive set_parameter command
string from device type and address.

14815883

Change-Id: Icf47218f1809f567ef93bdd99d6308475886b298
This commit is contained in:
Eric Laurent 2014-07-28 11:33:43 -07:00
parent 0a381a379d
commit a768c306b2
1 changed files with 18 additions and 0 deletions
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18
include/system/audio.h
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@ -20,6 +20,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/cdefs.h>
#include <sys/types.h>
@ -1325,6 +1326,23 @@ static inline size_t audio_bytes_per_sample(audio_format_t format)
return size;
}
/* converts device address to string sent to audio HAL via set_parameters */
static char *audio_device_address_to_parameter(audio_devices_t device, const char *address)
{
const size_t kSize = AUDIO_DEVICE_MAX_ADDRESS_LEN + sizeof("a2dp_sink_address=");
char param[kSize];
if (device & AUDIO_DEVICE_OUT_ALL_A2DP)
snprintf(param, kSize, "%s=%s", "a2dp_sink_address", address);
else if (device & AUDIO_DEVICE_OUT_REMOTE_SUBMIX)
snprintf(param, kSize, "%s=%s", "mix", address);
else
snprintf(param, kSize, "%s", address);
return strdup(param);
}
__END_DECLS
#endif // ANDROID_AUDIO_CORE_H