From 7a8b0ed6419e57dd8b41d3806893d63d3df91aab Mon Sep 17 00:00:00 2001 From: Jean-Michel Trivi Date: Thu, 2 Feb 2012 09:06:31 -0800 Subject: 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 --- media/libmediaplayerservice/MediaPlayerService.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'media/libmediaplayerservice/MediaPlayerService.h') 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& 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; } -- cgit v1.1