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Commit a768c306 authored by Eric Laurent's avatar Eric Laurent
Browse files

audio: add audio device address helper function 

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

14815883

Change-Id: Icf47218f1809f567ef93bdd99d6308475886b298
parent 0a381a37

include/system/audio.h

+18 −0
Original line number Diff line number Diff line
@@ -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