Description: Designed and Optimized H264 Decoder on ARM9 and ARM11 (25 optimized).
Designed and Optimized H263/MPEG4 Decoder on Freescale SC3400 QuadCore platform (18 optimized).
Designed and Optimized MPEG4 Encoder and improved video quality by changing bitrate algorithm on Freescale StarCore QuadCore platform and ARM11 processors (25 optimized).
Designed and Optimized RealVideo Decoder for ARM11 processor (20 optimized).
Worked on porting of various codecs on ARM processors
- Designed and Optimized H264 Decoder on ARM9 and ARM11 (25 optimized).
Designed and Optimized H263/MPEG4 Decoder on Freescale SC3400 QuadCore platform (18 optimized).
Designed and Optimized MPEG4 Encoder and improved video quality by changing bitrate algorithm on Freescale StarCore QuadCore platform and ARM11 processors (25 optimized).
Designed and Optimized RealVideo Decoder for ARM11 processor (20 optimized).
Worked on porting of various codecs on ARM processors
Platform: |
Size: 22528 |
Author:satya |
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Description: android内核移植推荐选项---包括需要的和不需要的以及可选的-android kernel porting Recommended options--- including the need for and do not need as well as optional Platform: |
Size: 1024 |
Author:邱天 |
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Description: H264解码器源码，移植ffmpeg中的H264解码部分到Android，深度删减优化，在模拟器(320x480)中验证通过。
程序的采用jni架构。界面部分，文件读取，视频显示都是用java做的，底层的视频解码用C来做满足速度的要求。
在这个版本中，从H264码流中分割出Nal是在java层做的，这样在java层直接调用解码时就知道是否有显示视频，缺点的就是耦合度/封装性差一点。
如果采用在底层做Nal分割的方法，可以封装得好看一些，但是每次送的数据有限制，如果送的数据太多，底层可能会一次解码出好几帧视频，但是通知到界面层只能显示一帧，造成丢帧的现象。 如果每次送的数据较少，就会有很多次底层调用没有进行实质解码，很小气的做法，比如有一压缩数据帧需要600字节，如果一次送100个字节给解码器，那么要送6次才会进行实质解码，因为每个数据帧有大有小，所以只能取极小值才不会导致丢帧。
不过所有的编码解码都是各种因素平衡折中的结果，具体用什么方法具体分析。
注意解码库写死了视频大小240x320,其他视频大小要简单修改一下底层的代码。-H264 decoder source code, porting ffmpeg s H264 decoding to Android, the depth of cut optimization, in the simulator (320x480) in the validation passed. Platform: |
Size: 650240 |
Author:caoliang |
Hits:
Description: 我自己前一段时间收集的android上层开发、底层移植文档。希望对大家有所帮助!-I have collected some time ago the upper android development of the underlying Portable Document. We want to help! Platform: |
Size: 35266560 |
Author:苗瑞瑞 |
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Description: Android移植指南:
台湾硕士研究生毕业论文-The study and implementation of
operating system porting for android
National Taipei University Platform: |
Size: 3087360 |
Author:kate |
Hits:
Description: H264解码器源码，移植ffmpeg中的H264解码部分到Android，深度删减优化，在模拟器(320x480)中验证通过。
程序的采用jni架构。界面部分，文件读取，视频显示都是用java做的，底层的视频解码用C来做满足速度的要求。
在这个版本中，从H264码流中分割出Nal是在java层做的，这样在java层直接调用解码时就知道是否有显示视频，缺点的就是耦合度/封装性差一点。
如果采用在底层做Nal分割的方法，可以封装得好看一些，但是每次送的数据有限制，如果送的数据太多，底层可能会一次解码出好几帧视频，但是通知到界面层只能显示一帧，造成丢帧的现象。 如果每次送的数据较少，就会有很多次底层调用没有进行实质解码，很小气的做法，比如有一压缩数据帧需要600字节，如果一次送100个字节给解码器，那么要送6次才会进行实质解码，因为每个数据帧有大有小，所以只能取极小值才不会导致丢帧。
不过所有的编码解码都是各种因素平衡折中的结果，具体用什么方法具体分析。-H264 decoder source code, porting ffmpeg s H264 decoder part to Android, the depth of cut optimization, in the simulator (320x480) to verify through.
Program using jni architecture. Interface portion of the file to read, the video display is made with java, the underlying video decoding in C to do to meet the speed requirements.
In this version, the H264 stream from a separate layer of Nal is done in java, so call decoding in java layer directly whether there is to know when to display video, drawback is the coupling/packaging of almost.
If used at the bottom do Nal segmentation method can be encapsulated look good, but each time there is limited data to send, if you get too much data, the underlying may be a decoding of several frames of video, but the notice to the interface layer can only display one, resulting in dropped frames phenomenon. If you send less data each time, there will be many times not to call the underlying substance of decoding, a small gas practices, s Platform: |
Size: 230400 |
Author:wyc |
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Description: 很好的 JNI 编程指南，是代码移植必备秘籍，可用于JAVA开发，ANDROID开发中C代码移植过程中间层开发，详细参见文档-Good JNI Programming Guide, code essential transplantation Cheats, can be used in Java development, the middle layer of the ANDROID development of C code porting process development, detailed see the documentation Platform: |
Size: 159744 |
Author:shone |
Hits:
Description: H264解码器源码，移植ffmpeg中的H264解码部分到Android，深度删减优化，在模拟器(320x480)中验证通过。
程序的采用jni架构。界面部分，文件读取，视频显示都是用java做的，底层的视频解码用C来做满足速度的要求。
在这个版本中，从H264码流中分割出Nal是在java层做的，这样在java层直接调用解码时就知道是否有显示视频，缺点的就是耦合度/封装性差一点。
如果采用在底层做Nal分割的方法，可以封装得好看一些，但是每次送的数据有限制，如果送的数据太多，底层可能会一次解码出好几帧视频，但是通知到界面层只能显示一帧，造成丢帧的现象。 如果每次送的数据较少，就会有很多次底层调用没有进行实质解码，很小气的做法，比如有一压缩数据帧需要600字节，如果一次送100个字节给解码器，那么要送6次才会进行实质解码，因为每个数据帧有大有小，所以只能取极小值才不会导致丢帧。
不过所有的编码解码都是各种因素平衡折中的结果，具体用什么方法具体分析。-H264 decoder source code, porting the H264 decoding ffmpeg to Android, depth of cut optimization, in the simulator (320x480) is verified.
Program using jni architecture. Part of the interface, file read, the video display is made with java, the underlying video decoding using C do meet the speed requirements.
In this version, from the H264 stream is segmented Nal java layer do so directly call the java layer decoding know whether displaying video, the disadvantage is that the degree of coupling/encapsulation almost.
If you do use the underlying Nal segmentation method, you can get some good-looking package, but every time there is limited data to send, if sending too much data, the underlying may decode several time-frame video, but can only display notifications to the UI layer one, resulting in dropped frames phenomenon. If you send less data each time, there will be many times the underlying call no substantial decoding, a small gas practice, such a frame requ Platform: |
Size: 243712 |
Author:caojin |
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Description: 一般有能力移植 Android 的業界不願公開移植的步驟及流程，而學界則恐缺資
源及人才，因此不易將Android 移植至實際平台，我們不僅成功地將Android 移植
至PXA270，並公開移植的步驟、流程、所撰寫及修改的程式碼，使他人可以仿照
此流程，建立Android 的執行環境。-The general ability of the industry s reluctance to transplant Android transplant procedures and processes, and the fear of lack of academic resources
Source and talent, it is not easy to transplant to the actual Android platform, we not only succeeded in porting Android
To PXA270, step and publicly transplant process, written and modified the code so that others may follow
This process, the establishment of the execution environment of Android. Platform: |
Size: 2846720 |
Author:锐哥 |
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Description: Android 驱动开发与移植实战详解面向实战的基于驱动和移植开发的技术书-The book based on the development of the drive and transplant Android driver development and porting for combat combat Xiangjie Platform: |
Size: 32983040 |
Author:王小刚 |
Hits:
Search - porting of android