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||Computer Science and Information Engineering|
|Type of Document
||The Development of Efficiently Lightweight Media Framework for Media Editor and Live Video Streaming|
|Date of Defense
||In the recent days, the hardware ability of embedded devices has been enhanced vastly and more straightforwardly to use software tool to develop, leading vigorous development of the handheld device, such as mobile phone or tablet. In the past, we can enjoy the multimedia entertainment on personal computer, but now multimedia appears in handheld devices anywhere. The advances of multimedia with the network technology bring much more user experience and value-added services offerings, such as YouTube, Live Streaming, Video Conference and so on.|
This paper proposes an efficiently lightweight multimedia framework. The framework could be used in various Android handset systems. Just install in application layer simply and do not re-build the Android image. Out of the shackle and dependency from Android system, it could achieve downloadable purpose.
The efficiently lightweight multimedia framework is based on the Stagefright Player framework which Google bring up in Android 2.2. Stagefright would be the mainstream multimedia framework in Android. Efficiently Lightweight Stagefright (EL-Stagefright) inherits Stagefright¡¦s functions such as playback, hardware decoding, stop play and support http streaming playback etc. Add two functions in EL-Stagefright, one is a trimming function that support MP4, 3GP container format by technique of frame reference. Another is live video streaming player which contain a FLV parser and RTMP protocol in EL-Stagefright multimedia framework.
|Table of Content
Table of ContentsIV
Lists of FiguresVI
Chapter 1: Introduction1
Chapter 2: Background and Related Work4
2.1 Development Platform4
2.2 Multimedia Framework8
2.3 Media Container11
2.3.1 MPEG4 Container12
2.3.2 FLV Container and RTMP12
Chapter 3: System Architecture14
3.1 System Goal14
3.1.2 Implementation API from EL-Stagefright14
3.1.3 System Overview15
3.2 The media flow of Android16
3.3 Efficiently Lightweight multimedia framework19
Chapter 4: Implementation24
4.1 Video Trimming24
4.1.1 Frame reference format:25
4.1.2 Implementation function25
4.2 Live Video Streaming29
4.2.1 Environment setup29
4.2.2 Implementation function31
4.2.3 Streaming Buffer control34
Chapter 5: Conclusion and Future Work37
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|Date of Submission