diff options
author | Glenn Kasten <gkasten@google.com> | 2014-12-30 15:08:59 -0800 |
---|---|---|
committer | Glenn Kasten <gkasten@google.com> | 2014-12-30 15:08:59 -0800 |
commit | 3957ebaefc10eebdd24f204918fc0f864abed63f (patch) | |
tree | 01f1b3509951033302ddc6725915f9743c18db78 /media/libmedia/docs | |
parent | 64cbdee08a18b25448a5fb0b058d3b83d5630d7f (diff) | |
download | frameworks_av-3957ebaefc10eebdd24f204918fc0f864abed63f.zip frameworks_av-3957ebaefc10eebdd24f204918fc0f864abed63f.tar.gz frameworks_av-3957ebaefc10eebdd24f204918fc0f864abed63f.tar.bz2 |
Flowchart for handling of AudioTrack client paused
Change-Id: I6fde6ea257684deaf5f92e97ee7c500192e7d8ca
Diffstat (limited to 'media/libmedia/docs')
-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; + +} |