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Diffstat (limited to 'media/libmediaplayerservice/nuplayer/MediaClock.h')
-rw-r--r-- | media/libmediaplayerservice/nuplayer/MediaClock.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/media/libmediaplayerservice/nuplayer/MediaClock.h b/media/libmediaplayerservice/nuplayer/MediaClock.h new file mode 100644 index 0000000..d005993 --- /dev/null +++ b/media/libmediaplayerservice/nuplayer/MediaClock.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef MEDIA_CLOCK_H_ + +#define MEDIA_CLOCK_H_ + +#include <media/stagefright/foundation/ABase.h> +#include <utils/Mutex.h> +#include <utils/RefBase.h> + +namespace android { + +struct AMessage; + +struct MediaClock : public RefBase { + MediaClock(); + + void setStartingTimeMedia(int64_t startingTimeMediaUs); + + void clearAnchor(); + // It's highly recommended to use timestamp of just rendered frame as + // anchor time, especially in paused state. Such restriction will be + // required when dynamic playback rate is supported in the future. + void updateAnchor( + int64_t anchorTimeMediaUs, + int64_t anchorTimeRealUs, + int64_t maxTimeMediaUs = INT64_MAX); + + void updateMaxTimeMedia(int64_t maxTimeMediaUs); + + void pause(); + void resume(); + + int64_t getTimeMedia(int64_t realUs, bool allowPastMaxTime = false); + +protected: + virtual ~MediaClock(); + +private: + Mutex mLock; + + int64_t mAnchorTimeMediaUs; + int64_t mAnchorTimeRealUs; + int64_t mMaxTimeMediaUs; + int64_t mStartingTimeMediaUs; + + bool mPaused; + + DISALLOW_EVIL_CONSTRUCTORS(MediaClock); +}; + +} // namespace android + +#endif // MEDIA_CLOCK_H_ |