dm8127 开发板换了 sensor, 图象很黑,该如何设置 ISS 寄存器

你自己做的这套，除了SPI，在硬件上和之前的有什么不同？你提到了ISS参数有可能不对，那么AFE给过来的数据和先前有什么差异？

你提到了这套系统还是能够对手电的光线产生反应的，是否有去测量过CCD出来的模拟信号本身，已经相关双采样的结果进行测试？   

你现在采集到的东西就是黑的，所以ISS这边牵涉到的只是采集相关的寄存器而已，问题基本上要往数据来源这边看。

非常感谢 Eason Wang 的回复, 我检查了Sensor 的 pin 脚, 发现 VD_EN 没有拉高,  我把这脚拉高之后, 图象正常了.

现在又面临一个新的问题, 就是 图像分辨率的问题.

 原来 IT 的sensor是 mt9j003 ,  分辨率 1920x1080, 现在的 sensor 是 ICX274AQ , 分辨率最高是 1600x1200 的,   我只想改成 1280x720 的 分辨率, 原来 RDK 代码中设置分辨率的地方是 直接填数字 1920, 1080 的,  有很多地方,  我都改成了1280 , 720,   可能我修改的地方不全, 造成现在经过 encoder 编码后的视频流总是有帧错误, 时不时花屏,  在IE中看不到错误, 但是换成 mplayer 来播放视频流, 就可以看到打印出来编码帧有错误:

...........

............

[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]I cbpy damaged at 20 43
[mpeg4 @ 012b9d60]Error at MB: 3503
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]illegal mb_num in video packet (3972 3600)
[mpeg4 @ 012b9d60]illegal mb_num in video packet (3844 3600)
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
Marker bit missing before time_increment in video packed header
[mpeg4 @ 012b9d60]Error at MB: 783
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
Marker bit missing before time_increment in video packed header
Marker bit missing before vop_coding_type in video packed header
[mpeg4 @ 012b9d60]Error at MB: 655
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]Error at MB: 1433
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
Marker bit missing before time_increment in video packed header
Marker bit missing before vop_coding_type in video packed header
[mpeg4 @ 012b9d60]Error at MB: 1688
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
Marker bit missing before time_increment in video packed header
[mpeg4 @ 012b9d60]Error, video packet header damaged (f_code=0)
[mpeg4 @ 012b9d60]Error at MB: 1947
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code
[mpeg4 @ 012b9d60]marker does not match f_code

......

..................

修改的地方似乎包括 每个视频流各自的分辨率 ,  每个视频流对应的编码encoder也有不同的分辨率,   另外sensor 输出的分辨必须填最大值 (在 文件 issdrv_captureApi.c 中 ), 即 查274 手册 知道 最大值是  SRC_HSZ = 1688 -1 , SRC_VSZ = 1248 -1 , 这两个值我只对 rsz_reg 和 ipipe_reg 这两组值赋值了, 不知道 isif_reg 和其它 组的寄存器组还需不需要赋这两个最大值?   

在enclink_priv.h 中 define ENC_LINK_MAX_FRAME_WIDTH  ENC_LINK_MAX_FRAME_HEIGHT , 我都改成了 1280, 720

在 multich_tristream_fullfeature.c 中,  pCameraOutPrm->scOutWidth = 1280,  原来是 1920的,  高度也改成720了,  

 pCameraInstPrm->standard = SYSTEM_STD_720P_60 , 原来是 SYSTEM_STD_1080P_30 ,

这些地方修改后, 还是没得到正确的编码流, 请问我修改的地方不全吗, 还是这种方式不对? 

______________________________

 另外, multich_tristream_fullfeature.c 文件中, 有 pCameraInstPrm,  和 pCameraOutPrm, 这两个结构体有保存了视频的尺寸 , 现在搞不清楚这两个变量对于 sensor来说对代表了什么意义? 应该怎样填写这些值? 

先谢谢了

wait wait wait,,,

请问你这里需要什么分辨率，然后传感器配置了什么分辨率，实际输出和采集的又是什么分辨率？

我需要下面的分辨率:

 Stream 1 : mpeg4 1280x720 

 Stream 2 : mpeg4 720 x 480

 Stream 3 : jpeg 1280x720 

传感器设置了 1600x1200的分辨率,  实际输出 也是1600x1200,  采集分辨率不明白是指什么,  是不是指 isif_reg 的 HDW, VDW ?   

下面是icx274的参数:

Device Structure
• Interline CCD image sensor
• Image size: Diagonal 8.923mm (Type 1/1.8)
• Total number of pixels: 1688 (H) × 1248 (V) approx. 2.11M pixels
• Number of effective pixels: 1628 (H) × 1236 (V) approx. 2.01M pixels
• Number of active pixels: 1620 (H) × 1220 (V) approx. 1.98M pixels
• Recommended number of
recording pixels: 1600 (H) × 1200 (V) approx. 1.92M pixels
• Chip size: 8.50mm (H) × 6.80mm (V)
• Unit cell size: 4.40μm (H) × 4.40μm (V)
• Optical black: Horizontal (H) direction: Front 12 pixels, rear 48 pixels
Vertical (V) direction: Front 10 pixels, rear 2 pixels
• Number of dummy bits: Horizontal 28
Vertical 1
• Substrate material: Silicon

原来 mt9j003的时候,  stream1 和 stream 3  都是 1920x1080的, stream2 是720x480的,  需要放缩的话, 还不知道 设置 rsz_reg 的哪些寄存器, 现在还搞不明白呢?

pCameraOutPrm->scOutWidth = 1920;
pCameraOutPrm->scOutHeight = 1080;

#elif defined IMGS_SONY_IMX104
pCameraInstPrm->sensorOutWidth = 1280;
pCameraInstPrm->sensorOutHeight = 720;

这些地方应该需要相应修改的。