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Commit a82797fa authored by Eric Laurent's avatar Eric Laurent
Browse files

audio policy: add fallback for output selection 

When getOutputForDevice() finds a matching direct output profile
but fails to open it, try to fallback to downmix on mixer output
when format is PCM and sampling rate allows it.

Bug: 19197137.
Change-Id: I197b9b202504265b6928e69740875cb7aba5c2c5
parent a93fd2be

services/audiopolicy/AudioPolicyManager.cpp

+4 −0
Original line number Diff line number Diff line
@@ -1098,6 +1098,10 @@ audio_io_handle_t AudioPolicyManager::getOutputForDevice( 
            if (output != AUDIO_IO_HANDLE_NONE) {

                mpClientInterface->closeOutput(output);

            }

            // fall back to mixer output if possible when the direct output could not be open

            if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE) {

                goto non_direct_output;

            }

            return AUDIO_IO_HANDLE_NONE;

        }

        outputDesc->mSamplingRate = config.sample_rate;