diff options
Diffstat (limited to 'media/libstagefright/AudioPlayer.cpp')
| -rw-r--r-- | media/libstagefright/AudioPlayer.cpp | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/media/libstagefright/AudioPlayer.cpp b/media/libstagefright/AudioPlayer.cpp index df27566..9427ef7 100644 --- a/media/libstagefright/AudioPlayer.cpp +++ b/media/libstagefright/AudioPlayer.cpp @@ -110,13 +110,18 @@ status_t AudioPlayer::start(bool sourceAlreadyStarted) { success = format->findInt32(kKeySampleRate, &mSampleRate); CHECK(success); - int32_t numChannels; + int32_t numChannels, channelMask; success = format->findInt32(kKeyChannelCount, &numChannels); CHECK(success); + if(!format->findInt32(kKeyChannelMask, &channelMask)) { + ALOGW("source format didn't specify channel mask, using channel order"); + channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER; + } + if (mAudioSink.get() != NULL) { status_t err = mAudioSink->open( - mSampleRate, numChannels, AUDIO_FORMAT_PCM_16_BIT, + mSampleRate, numChannels, channelMask, AUDIO_FORMAT_PCM_16_BIT, DEFAULT_AUDIOSINK_BUFFERCOUNT, &AudioPlayer::AudioSinkCallback, this); if (err != OK) { @@ -137,11 +142,15 @@ status_t AudioPlayer::start(bool sourceAlreadyStarted) { mAudioSink->start(); } else { + // playing to an AudioTrack, set up mask if necessary + audio_channel_mask_t audioMask = channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER ? + audio_channel_mask_from_count(numChannels) : channelMask; + if (0 == audioMask) { + return BAD_VALUE; + } + mAudioTrack = new AudioTrack( - AUDIO_STREAM_MUSIC, mSampleRate, AUDIO_FORMAT_PCM_16_BIT, - (numChannels == 2) - ? AUDIO_CHANNEL_OUT_STEREO - : AUDIO_CHANNEL_OUT_MONO, + AUDIO_STREAM_MUSIC, mSampleRate, AUDIO_FORMAT_PCM_16_BIT, audioMask, 0, 0, &AudioCallback, this, 0); if ((err = mAudioTrack->initCheck()) != OK) { |