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| author | crogers@google.com <crogers@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-03-23 01:52:48 +0000 |
|---|---|---|
| committer | crogers@google.com <crogers@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-03-23 01:52:48 +0000 |
| commit | 161ee06e2799fc4c83c7ce615f6bea157ccec906 (patch) | |
| tree | 18d9abb1b63e4ff40fbf99e73cc1a38a9b0a4d5d /media | |
| parent | 7785b17f588fb9d8b583f3a38db0bc40f414cc3d (diff) | |
| download | chromium_src-161ee06e2799fc4c83c7ce615f6bea157ccec906.zip chromium_src-161ee06e2799fc4c83c7ce615f6bea157ccec906.tar.gz chromium_src-161ee06e2799fc4c83c7ce615f6bea157ccec906.tar.bz2 | |
Add WebKit API to retrieve the audio hardware sample-rate
BUG=none
TEST=none
Review URL: http://codereview.chromium.org/6721015
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@79088 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'media')
| -rw-r--r-- | media/audio/audio_util.cc | 15 | ||||
| -rw-r--r-- | media/audio/audio_util.h | 3 |
2 files changed, 18 insertions, 0 deletions
diff --git a/media/audio/audio_util.cc b/media/audio/audio_util.cc index 277bb1a..18e2abb 100644 --- a/media/audio/audio_util.cc +++ b/media/audio/audio_util.cc @@ -11,6 +11,9 @@ #include "base/basictypes.h" #include "base/logging.h" #include "media/audio/audio_util.h" +#if defined(OS_MACOSX) +#include "media/audio/mac/audio_low_latency_output_mac.h" +#endif namespace media { @@ -219,4 +222,16 @@ void InterleaveFloatToInt16(const std::vector<float*>& source, } } +double GetAudioHardwareSampleRate() +{ +#if defined(OS_MACOSX) + // Hardware sample-rate on the Mac can be configured, so we must query. + return AUAudioOutputStream::HardwareSampleRate(); +#else + // Hardware for Windows and Linux is nearly always 48KHz. + // TODO(crogers) : return correct value in rare non-48KHz cases. + return 48000.0; +#endif +} + } // namespace media diff --git a/media/audio/audio_util.h b/media/audio/audio_util.h index 274c82c..15a0935 100644 --- a/media/audio/audio_util.h +++ b/media/audio/audio_util.h @@ -91,6 +91,9 @@ void SwizzleCoreAudioLayout5_1(Format* b, uint32 filled) { } } +// Returns the default audio hardware sample-rate. +double GetAudioHardwareSampleRate(); + } // namespace media #endif // MEDIA_AUDIO_AUDIO_UTIL_H_ |