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author | Andreas Huber <andih@google.com> | 2011-09-15 12:25:04 -0700 |
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committer | Andreas Huber <andih@google.com> | 2011-09-16 10:44:02 -0700 |
commit | 078cfcf7cce9185ec7559910d08b0bc02bfc88a3 (patch) | |
tree | d4fb458318a3f0b3982b05e0c79a2cfc447dd732 /media/libstagefright/chromium_http | |
parent | 5dc2812abddde309234edc786a541d251c4f820a (diff) | |
download | frameworks_av-078cfcf7cce9185ec7559910d08b0bc02bfc88a3.zip frameworks_av-078cfcf7cce9185ec7559910d08b0bc02bfc88a3.tar.gz frameworks_av-078cfcf7cce9185ec7559910d08b0bc02bfc88a3.tar.bz2 |
Various improvements to nuplayer playback
- Drastically cut down the number of times we supply the AudioSink with data
by estimating the time until the sink would run out of data and then scheduling
a refill in advance of that.
- Use a dedicated looper for video decoders since they are currently taking
too long to return from OMX_FillThisBuffer (bug 5325201)
- Revise thread priorities for the OMX dispatcher and software codecs, instead
of running them at ANDROID_PRIORITY_AUDIO, they now only run at
ANDROID_PRIORITY_FOREGROUND
- Since threads created by pthread_create inherit all of the parent threads
attributes including thread priority, briefly reset thread priority to
ANDROID_PRIORITY_FOREGROUND before instantiating OMX components and then
restore it.
Change-Id: If9332a3a20dad5485333d68c11de0d2d5d3fffc3
Diffstat (limited to 'media/libstagefright/chromium_http')
-rw-r--r-- | media/libstagefright/chromium_http/support.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/media/libstagefright/chromium_http/support.cpp b/media/libstagefright/chromium_http/support.cpp index de936c4..f15014e 100644 --- a/media/libstagefright/chromium_http/support.cpp +++ b/media/libstagefright/chromium_http/support.cpp @@ -74,10 +74,32 @@ bool logMessageHandler( return false; } +struct AutoPrioritySaver { + AutoPrioritySaver() + : mTID(androidGetTid()), + mPrevPriority(androidGetThreadPriority(mTID)) { + androidSetThreadPriority(mTID, ANDROID_PRIORITY_NORMAL); + } + + ~AutoPrioritySaver() { + androidSetThreadPriority(mTID, mPrevPriority); + } + +private: + pid_t mTID; + int mPrevPriority; + + DISALLOW_EVIL_CONSTRUCTORS(AutoPrioritySaver); +}; static void InitializeNetworkThreadIfNecessary() { Mutex::Autolock autoLock(gNetworkThreadLock); + if (gNetworkThread == NULL) { + // Make sure any threads spawned by the chromium framework are + // running at normal priority instead of inheriting this thread's. + AutoPrioritySaver saver; + gNetworkThread = new base::Thread("network"); base::Thread::Options options; options.message_loop_type = MessageLoop::TYPE_IO; |