【技术分享】Firefly-RK3288多路视频编解码技术案例源码发布啦~

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kuangye1988 发表于 2016-8-3 11:31
Android 5.1 已经编译过了，但测试又出现问题了。

reload的板子，连接2个UVC时，程序只显示一个摄像头的 ...

hi，按照上面操作，而且把APK的源码的sd卡路径修改了一下。三个视频播放正常，但是无法成功预览。用的摄像头是罗技的C270与C920，/dev目录下能看到video设备文件。请问你当时是怎么成功预览的？谢谢

214740484

LZ,reload板子，android 5.1系统，最新的git代码，按照你的教程一步步操作，而且把APK的源码的sd卡路径修改了一下。三个视频播放正常，但是无法成功预览。用的摄像头是罗技的C270与C920，/dev目录下能看到video设备文件。进程里面有uvcserver，

APP的log信息如下
08-10 11:46:51.859 8588-8588/com.example.multicodecs D/UvcJNI: native_setup
08-10 11:46:51.859 8588-8588/com.example.multicodecs D/UvcJNI: JniTachographCallback construct
08-10 11:46:51.859 8588-8588/com.example.multicodecs D/IUvcService: createUvc
08-10 11:46:51.860 8588-8588/com.example.multicodecs D/UvcClient: createUvc mUvc=0xb72a4f20
08-10 11:46:51.860 8588-8588/com.example.multicodecs D/UvcClient: setCallback 0xb726ff10
08-10 11:46:51.860 8588-8588/com.example.multicodecs D/UvcClient: setUvcId(0)
08-10 11:46:51.860 8588-8588/com.example.multicodecs D/UvcClient: connect
08-10 11:46:51.860 8588-8588/com.example.multicodecs D/UvcJNI: valid
08-10 11:46:51.860 8588-8588/com.example.multicodecs D/UvcClient: valid
08-10 11:46:51.861 8588-8588/com.example.multicodecs D/UvcJNI: release 0xb7270358
08-10 11:46:51.861 8588-8588/com.example.multicodecs D/UvcClient: disconnect
08-10 11:46:51.861 8588-8588/com.example.multicodecs D/UvcClient: setCallback 0x0
08-10 11:46:51.861 8588-8588/com.example.multicodecs D/UvcClient: release
08-10 11:46:51.862 8588-8588/com.example.multicodecs D/UvcJNI: JniTachographCallback destruct
08-10 11:46:51.874 8588-8588/com.example.multicodecs D/UvcJNI: native_setup
08-10 11:46:51.874 8588-8588/com.example.multicodecs D/UvcJNI: JniTachographCallback construct
08-10 11:46:51.874 8588-8588/com.example.multicodecs D/IUvcService: createUvc
08-10 11:46:51.875 8588-8588/com.example.multicodecs D/UvcClient: createUvc mUvc=0xb72e4528
08-10 11:46:51.875 8588-8588/com.example.multicodecs D/UvcClient: setCallback 0xb72e40a0
08-10 11:46:51.875 8588-8588/com.example.multicodecs D/UvcClient: setUvcId(1)
08-10 11:46:51.875 8588-8588/com.example.multicodecs D/UvcClient: connect
08-10 11:46:51.875 8588-8588/com.example.multicodecs D/UvcJNI: valid
08-10 11:46:51.875 8588-8588/com.example.multicodecs D/UvcClient: valid
08-10 11:46:51.876 8588-8588/com.example.multicodecs D/UvcJNI: release 0xb72e44e8
08-10 11:46:51.876 8588-8588/com.example.multicodecs D/UvcClient: disconnect
08-10 11:46:51.876 8588-8588/com.example.multicodecs D/UvcClient: setCallback 0x0
08-10 11:46:51.877 8588-8588/com.example.multicodecs D/UvcClient: release
08-10 11:46:51.877 8588-8588/com.example.multicodecs D/UvcJNI: JniTachographCallback destruct
08-10 11:46:55.467 8588-8600/com.example.multicodecs D/UvcJNI: native_finalize
08-10 11:46:55.467 8588-8600/com.example.multicodecs D/UvcJNI: release 0x0
08-10 11:46:55.467 8588-8600/com.example.multicodecs D/UvcJNI: native_finalize
08-10 11:46:55.467 8588-8600/com.example.multicodecs D/UvcJNI: release 0x0
08-10 11:46:55.468 8588-8600/com.example.multicodecs D/UvcJNI: native_finalize
08-10 11:46:55.468 8588-8600/com.example.multicodecs D/UvcJNI: release 0x0
08-10 11:46:55.468 8588-8600/com.example.multicodecs D/UvcJNI: native_finalize
08-10 11:46:55.468 8588-8600/com.example.multicodecs D/UvcJNI: release 0x0

想知道哪里出了问题，谢谢！

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Livvol 发表于 2016-8-10 15:28
1、在板子上打开相机，摄像分别都能用吧，只插一个uvc试试？
2、我在测试的时候没有遇到这种情况，代码 ...

谢谢！后来发现两个摄像头只能识别一个，没有太多时间去熟悉UVC这部分了。简单测试发现，三路播放720P基本是极限了，1080P的话很容易出现卡顿和音视频不同步的问题。