diff options
| -rw-r--r-- | libaudio2/AudioHardware.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libaudio2/AudioHardware.cpp b/libaudio2/AudioHardware.cpp index 3755e23..10409a1 100644 --- a/libaudio2/AudioHardware.cpp +++ b/libaudio2/AudioHardware.cpp @@ -28,6 +28,7 @@ #include <sys/ioctl.h> #include <sys/types.h> #include <sys/stat.h> +#include <sys/resource.h> #include <dlfcn.h> #include <fcntl.h> @@ -311,8 +312,13 @@ status_t AudioHardware::setMode(int mode) sp<AudioStreamInALSA> spIn; status_t status; + // bump thread priority to speed up mutex acquisition + int priority = getpriority(PRIO_PROCESS, 0); + setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_URGENT_AUDIO); + // Mutex acquisition order is always out -> in -> hw AutoMutex lock(mLock); + spOut = mOutput; while (spOut != 0) { if (!spOut->checkStandby()) { @@ -349,6 +355,8 @@ status_t AudioHardware::setMode(int mode) } // spIn is not 0 here only if the input is active + setpriority(PRIO_PROCESS, 0, priority); + int prevMode = mMode; status = AudioHardwareBase::setMode(mode); LOGV("setMode() : new %d, old %d", mMode, prevMode); |