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author | Eric Laurent <elaurent@google.com> | 2014-09-29 19:44:56 +0000 |
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committer | Android Git Automerger <android-git-automerger@android.com> | 2014-09-29 19:44:56 +0000 |
commit | 788dfbee2860fc6f9574cb00c6423052fa5f3a19 (patch) | |
tree | 18a71b962beccfad40a684ac8a73562defbfcf69 | |
parent | 17fa4e4f00f1985e180c13d4733d1847d531b60b (diff) | |
parent | d1ed2a189a9ba44877cb302025f2317519a47468 (diff) | |
download | frameworks_av-788dfbee2860fc6f9574cb00c6423052fa5f3a19.zip frameworks_av-788dfbee2860fc6f9574cb00c6423052fa5f3a19.tar.gz frameworks_av-788dfbee2860fc6f9574cb00c6423052fa5f3a19.tar.bz2 |
am d1ed2a18: am a8a4eeb9: Merge "audio policy: favor mixed over direct output for PCM format" into lmp-dev
* commit 'd1ed2a189a9ba44877cb302025f2317519a47468':
audio policy: favor mixed over direct output for PCM format
-rw-r--r-- | services/audiopolicy/AudioPolicyManager.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/services/audiopolicy/AudioPolicyManager.cpp b/services/audiopolicy/AudioPolicyManager.cpp index d51ee8e..d0b990f 100644 --- a/services/audiopolicy/AudioPolicyManager.cpp +++ b/services/audiopolicy/AudioPolicyManager.cpp @@ -927,13 +927,21 @@ audio_io_handle_t AudioPolicyManager::getOutputForDevice( flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); } + sp<IOProfile> profile; + + // skip direct output selection if the request can obviously be attached to a mixed output + if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && + audio_channel_count_from_out_mask(channelMask) <= 2) { + goto non_direct_output; + } + // Do not allow offloading if one non offloadable effect is enabled. This prevents from // creating an offloaded track and tearing it down immediately after start when audioflinger // detects there is an active non offloadable effect. // FIXME: We should check the audio session here but we do not have it in this context. // This may prevent offloading in rare situations where effects are left active by apps // in the background. - sp<IOProfile> profile; + if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || !isNonOffloadableEffectEnabled()) { profile = getProfileForDirectOutput(device, @@ -1016,6 +1024,8 @@ audio_io_handle_t AudioPolicyManager::getOutputForDevice( return output; } +non_direct_output: + // ignoring channel mask due to downmix capability in mixer // open a non direct output |