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| author | Jean-Michel Trivi <jmtrivi@google.com> | 2012-02-02 09:06:31 -0800 |
|---|---|---|
| committer | Jean-Michel Trivi <jmtrivi@google.com> | 2012-02-13 12:39:54 -0800 |
| commit | 7a8b0ed6419e57dd8b41d3806893d63d3df91aab (patch) | |
| tree | da2076d221f7eb3e26db190d51173c04a91e0788 /media/libmediaplayerservice/MediaPlayerService.h | |
| parent | 1f5ce8b0941c9c6baadd40d151634145f6d5a35c (diff) | |
| download | frameworks_av-7a8b0ed6419e57dd8b41d3806893d63d3df91aab.zip frameworks_av-7a8b0ed6419e57dd8b41d3806893d63d3df91aab.tar.gz frameworks_av-7a8b0ed6419e57dd8b41d3806893d63d3df91aab.tar.bz2 | |
Playback rate on MediaPlayer
Add support for modifying the playback rate of a MediaPlayer
by altering the sample rate of its AudioTrack.
The playback rate is expressed in permille, where 1000 is the
playback at normal speed.
Change-Id: I981d060ab32f7bae7a767e82c60c88ae635dceed
Diffstat (limited to 'media/libmediaplayerservice/MediaPlayerService.h')
| -rw-r--r-- | media/libmediaplayerservice/MediaPlayerService.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h index fa71d11..52af64d 100644 --- a/media/libmediaplayerservice/MediaPlayerService.h +++ b/media/libmediaplayerservice/MediaPlayerService.h @@ -95,6 +95,7 @@ class MediaPlayerService : public BnMediaPlayerService virtual void close(); void setAudioStreamType(audio_stream_type_t streamType) { mStreamType = streamType; } void setVolume(float left, float right); + virtual status_t setPlaybackRatePermille(int32_t ratePermille); status_t setAuxEffectSendLevel(float level); status_t attachAuxEffect(int effectId); virtual status_t dump(int fd, const Vector<String16>& args) const; @@ -112,6 +113,8 @@ class MediaPlayerService : public BnMediaPlayerService audio_stream_type_t mStreamType; float mLeftVolume; float mRightVolume; + int32_t mPlaybackRatePermille; + uint32_t mSampleRateHz; // sample rate of the content, as set in open() float mMsecsPerFrame; uint32_t mLatency; int mSessionId; @@ -152,6 +155,7 @@ class MediaPlayerService : public BnMediaPlayerService virtual void close() {} void setAudioStreamType(audio_stream_type_t streamType) {} void setVolume(float left, float right) {} + virtual status_t setPlaybackRatePermille(int32_t ratePermille) { return INVALID_OPERATION; } uint32_t sampleRate() const { return mSampleRate; } audio_format_t format() const { return mFormat; } size_t size() const { return mSize; } |