Cross Reference: /frameworks/wilhelm/src/itf/IOutputMixExt.c

Lines Matching refs:track
43 /** \brief Check whether a track has any data for us to read */
45 static SLboolean track_check(Track *track)
47     assert(NULL != track);
50     CAudioPlayer *audioPlayer = track->mAudioPlayer;
53         // track is initialized
58         assert(audioPlayer->mTrack == track);
60         SLuint32 framesMixed = track->mFramesMixed;
62             track->mFramesMixed = 0;
78             track->mReader = NULL;
79             track->mAvail = 0;
87             unsigned i = track - outputMix->mOutputMixExt.mTracks;
90             track->mAudioPlayer = NULL;
101         case SL_PLAYSTATE_PLAYING:  // continue playing current track data
102             if (0 < track->mAvail) {
111                 track->mReader = oldFront->mBuffer;
112                 track->mAvail = oldFront->mSize;
122             // copy gains from audio player to track
123             track->mGains[0] = audioPlayer->mGains[0];
124             track->mGains[1] = audioPlayer->mGains[1];
138                 track->mReader = oldFront->mBuffer;
139                 track->mAvail = oldFront->mSize;
167 /** \brief This is the track mixer: fill the specified 16-bit stereo PCM buffer */
200         Track *track = &thiz->mTracks[i];
202         // track is allocated
204         if (!track_check(track)) {
208         // track is playing
216             float gain = track->mGains[channel];
230             if (track->mAvail < actual) {
231                 actual = track->mAvail;
235                 assert(NULL != track->mReader);
237                 const stereo *source = (const stereo *) track->mReader;
244                                 mixBuffer->left += (short) (source->left * track->mGains[0]);
245                                 mixBuffer->right += (short) (source->right * track->mGains[1]);
258                                 mixBuffer->left = (short) (source->left * track->mGains[0]);
259                                 mixBuffer->right = (short) (source->right * track->mGains[1]);
263                             memcpy(dstWriter, track->mReader, actual);
270                 track->mReader = (char *) track->mReader + actual;
271                 track->mAvail -= actual;
272                 if (track->mAvail == 0) {
273                     IBufferQueue *bufferQueue = &track->mAudioPlayer->mBufferQueue;
291                         track->mReader = newFront->mBuffer;
292                         track->mAvail = newFront->mSize;
308                 track->mFramesMixed += actual >> 2;    // sizeof(short) * STEREO_CHANNELS
312             if (track_check(track)) {
344     Track *track = &thiz->mTracks[0];
346     for (i = 0; i < MAX_TRACK; ++i, ++track) {
347         track->mAudioPlayer = NULL;
353 /** \brief Called by Engine::CreateAudioPlayer to allocate a track */
383     Track *track = NULL;
390         // allocate an entry within OutputMix for this track
395             // All track slots full in output mix
401         track = &omExt->mTracks[i];
402         track->mAudioPlayer = NULL;    // only field that is accessed before full initialization
404         thiz->mTrack = track;
414     assert(NULL != track);
415     track->mBufferQueue = &thiz->mBufferQueue;
416     track->mAudioPlayer = thiz;
417     track->mReader = NULL;
418     track->mAvail = 0;
419     track->mGains[0] = 1.0f;
420     track->mGains[1] = 1.0f;
421     track->mFramesMixed = 0;