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Commit 6f7e097e authored by Eric Laurent's avatar Eric Laurent
Browse files

Limit AudioFlinger mixer track sampling rate. 

When changing the audio output stream sampling rate with setParameters() make sure that all tracks have a sampling rate less or equal to 2 times the new output sampling rate.
parent 36093d4e

libs/audioflinger/AudioFlinger.cpp

+4 −0
Original line number Diff line number Diff line
@@ -1512,6 +1512,10 @@ bool AudioFlinger::MixerThread::checkForNewParameters_l() 
                    int name = getTrackName_l();

                    if (name < 0) break;

                    mTracks[i]->mName = name;

                    // limit track sample rate to 2 x new output sample rate

                    if (mTracks[i]->mCblk->sampleRate > 2 * sampleRate()) {

                        mTracks[i]->mCblk->sampleRate = 2 * sampleRate();

                    }

                }

                sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED);

            }