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author | Glenn Kasten <gkasten@google.com> | 2014-12-30 23:41:18 +0000 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2014-12-30 23:41:19 +0000 |
commit | 49d44ef14da70f3159cf7908cab58c32ed3dbf26 (patch) | |
tree | f285f76803d8d92213f6de9ce6ee8bd5c454f705 /media | |
parent | b187de1ada34a9023c05d020a4592686ba761278 (diff) | |
parent | 3957ebaefc10eebdd24f204918fc0f864abed63f (diff) | |
download | frameworks_av-49d44ef14da70f3159cf7908cab58c32ed3dbf26.zip frameworks_av-49d44ef14da70f3159cf7908cab58c32ed3dbf26.tar.gz frameworks_av-49d44ef14da70f3159cf7908cab58c32ed3dbf26.tar.bz2 |
Merge "Flowchart for handling of AudioTrack client paused"
Diffstat (limited to 'media')
-rw-r--r-- | media/libmedia/docs/Makefile | 2 | ||||
-rw-r--r-- | media/libmedia/docs/paused.dot | 73 |
2 files changed, 75 insertions, 0 deletions
diff --git a/media/libmedia/docs/Makefile b/media/libmedia/docs/Makefile new file mode 100644 index 0000000..bddbc9b --- /dev/null +++ b/media/libmedia/docs/Makefile @@ -0,0 +1,2 @@ +paused.png : paused.dot + dot -Tpng < $< > $@ diff --git a/media/libmedia/docs/paused.dot b/media/libmedia/docs/paused.dot new file mode 100644 index 0000000..8856647 --- /dev/null +++ b/media/libmedia/docs/paused.dot @@ -0,0 +1,73 @@ +digraph paused { +initial [label="INITIAL\n\ +mIgnoreNextPausedInt = false\n\ +mPaused = false\n\ +mPausedInt = false"]; + +resume_body [label="mIgnoreNextPausedInt = true\nif (mPaused || mPausedInt)"]; +resume_paused [label="mPaused = false\nmPausedInt = false\nsignal()"]; +resume_paused -> resume_merged; +resume_merged [label="return"]; + +Application -> ATstop; +ATstop [label="AudioTrack::stop()"]; +ATstop -> pause; +Application -> ATpause; +ATpause [label="AudioTrack::pause()"]; +ATpause -> pause; +ATstart -> resume; +ATstart [label="AudioTrack::start()"]; +destructor [label="~AudioTrack()"]; +destructor -> requestExit; +requestExit [label="AudioTrackThread::requestExit()"]; +requestExit -> resume; +Application -> ATstart; + +resume [label="AudioTrackThread::resume()"]; +resume -> resume_body; + +resume_body -> resume_paused [label="true"]; +resume_body -> resume_merged [label="false"]; + +pause [label="mPaused = true"]; +pause -> return; + +threadLoop [label="AudioTrackThread::threadLoop()\nENTRY"]; +threadLoop -> threadLoop_1; +threadLoop_1 [label="if (mPaused)"]; +threadLoop_1 -> threadLoop_1_true [label="true"]; +threadLoop_1 -> threadLoop_2 [label="false"]; +threadLoop_1_true [label="wait()\nreturn true"]; +threadLoop_2 [label="if (mIgnoreNextPausedInt)"]; +threadLoop_2 -> threadLoop_2_true [label="true"]; +threadLoop_2 -> threadLoop_3 [label="false"]; +threadLoop_2_true [label="mIgnoreNextPausedInt = false\nmPausedInt = false"]; +threadLoop_2_true -> threadLoop_3; +threadLoop_3 [label="if (mPausedInt)"]; +threadLoop_3 -> threadLoop_3_true [label="true"]; +threadLoop_3 -> threadLoop_4 [label="false"]; +threadLoop_3_true [label="wait()\nmPausedInt = false\nreturn true"]; +threadLoop_4 [label="if (exitPending)"]; +threadLoop_4 -> threadLoop_4_true [label="true"]; +threadLoop_4 -> threadLoop_5 [label="false"]; +threadLoop_4_true [label="return false"]; +threadLoop_5 [label="ns = processAudioBuffer()"]; +threadLoop_5 -> threadLoop_6; +threadLoop_6 [label="case ns"]; +threadLoop_6 -> threadLoop_6_0 [label="0"]; +threadLoop_6 -> threadLoop_6_NS_INACTIVE [label="NS_INACTIVE"]; +threadLoop_6 -> threadLoop_6_NS_NEVER [label="NS_NEVER"]; +threadLoop_6 -> threadLoop_6_NS_WHENEVER [label="NS_WHENEVER"]; +threadLoop_6 -> threadLoop_6_default [label="default"]; +threadLoop_6_default [label="if (ns < 0)"]; +threadLoop_6_default -> threadLoop_6_default_true [label="true"]; +threadLoop_6_default -> threadLoop_6_default_false [label="false"]; +threadLoop_6_default_true [label="FATAL"]; +threadLoop_6_default_false [label="pauseInternal(ns)\nmPausedInternal = true\nmPausedNs = ns\nreturn true"]; +threadLoop_6_0 [label="return true"]; +threadLoop_6_NS_INACTIVE [label="pauseInternal()\nmPausedInternal = true\nmPausedNs = 0\nreturn true"]; +threadLoop_6_NS_NEVER [label="return false"]; +threadLoop_6_NS_WHENEVER [label="ns = 1s"]; +threadLoop_6_NS_WHENEVER -> threadLoop_6_default_false; + +} |