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| author | scherkus@chromium.org <scherkus@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-07-28 20:36:37 +0000 |
|---|---|---|
| committer | scherkus@chromium.org <scherkus@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-07-28 20:36:37 +0000 |
| commit | 46564213965397d01fb87975f3bddd597985fcbf (patch) | |
| tree | 346f9cf4005fcb9865196622f13462065f52a83f /media/base/pipeline_impl.h | |
| parent | c2972193bd0d0c2354d0862444b7ce4662d52d77 (diff) | |
| download | chromium_src-46564213965397d01fb87975f3bddd597985fcbf.zip chromium_src-46564213965397d01fb87975f3bddd597985fcbf.tar.gz chromium_src-46564213965397d01fb87975f3bddd597985fcbf.tar.bz2 | |
Implemented a proper clock for audio/video synchronization.
More or less a change to pull out time management from PipelineImpl into a new class ClockImpl. Biggest difference is ClockImpl will use the system clock + linear interpolation to provide a more "precise" representation of the current playback position.
BUG=16508
TEST=a/v sync should remain the same, currentTime should report more precise values
Review URL: http://codereview.chromium.org/159517
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@21882 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'media/base/pipeline_impl.h')
| -rw-r--r-- | media/base/pipeline_impl.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/media/base/pipeline_impl.h b/media/base/pipeline_impl.h index be3ad28..5c84e26 100644 --- a/media/base/pipeline_impl.h +++ b/media/base/pipeline_impl.h @@ -16,6 +16,7 @@ #include "base/ref_counted.h" #include "base/thread.h" #include "base/time.h" +#include "media/base/clock_impl.h" #include "media/base/filter_host.h" #include "media/base/pipeline.h" @@ -282,8 +283,10 @@ class PipelineImpl : public Pipeline, public FilterHost { // the filters. float playback_rate_; - // Current playback time. Set by filters. - base::TimeDelta time_; + // Reference clock. Keeps track of current playback time. Uses system + // clock and linear interpolation, but can have its time manually set + // by filters. + ClockImpl clock_; // Status of the pipeline. Initialized to PIPELINE_OK which indicates that // the pipeline is operating correctly. Any other value indicates that the |