hi3518E + ov9712调试时，sample_venc居然取不到video data!

测试过程：

# ./sample_venc 2

press 'q' to exit sample!

peress ENTER to capture one picture to file

[SAMPLE_COMM_VENC_SnapProcess]-747: snap time out!

SAMPLE_VENC_720P_Snap: sanp process failed!

snap over!

[SAMPLE_COMM_VENC_SnapStop]-678: HI_MPI_VENC_DestroyChn vechn[0] failed with 0xa0078009! 

0xA0078009 HI_ERR_VENC_NOT_PERM 该操作不允许，如试图修改静态配置参数

[SAMPLE_VENC_720P_Snap]-664: Stop snap failed!

# /mnt/nfs/sample_venc1 

Usage : /mnt/nfs/sample_venc1 <index>

index:

         0) 720p classic H264 encode.

         1) 1*720p MJPEG encode.

         2) 1*720p JPEG snap.

# /mnt/nfs/sample_venc1 2

register isp lib info ec ffffffff!

SAMPLE_COMM_ISP_Init: HI_MPI_ISP_Init failed!

SAMPLE_COMM_ISP_Run: ISP init failed!

[SAMPLE_COMM_VI_StartIsp]-1253: SAMPLE_COMM_VI_StartIsp: ISP init failed!

[SAMPLE_VENC_720P_Snap]-607: start vi failed!

Segmentation fault

# /mnt/nfs/sample_venc2 2

press 'q' to exit sample!

peress ENTER to capture one picture to file

[SAMPLE_COMM_VENC_SnapProcess]-747: snap time out!

SAMPLE_VENC_720P_Snap: sanp process failed!

snap over!

[SAMPLE_COMM_VENC_SnapStop]-678: HI_MPI_VENC_DestroyChn vechn[0] failed with 0xa0078009!

[SAMPLE_VENC_720P_Snap]-664: Stop snap failed!

program exit abnormally!

# 

# ./rtspmain 

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

pid:593 receive signal:2, prepare to exit!

Exit from Rtspd monitor thread!

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

# 

# /mnt/nfs/rtmpmain  rtmp://192.168.2.10/live/demo

SRS(simple-rtmp-server) client librtmp library.

version: 3.0.3

[1970-01-01 00:59:55.23][597] simple handshake success

[1970-01-01 00:59:55.28][597] connect vhost/app success

[1970-01-01 00:59:55.37][597] publish stream success!

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue

pid:597 receive signal:2, prepare to exit!

[SAMPLE_COMM_VENC_GetVencStreamProc]-928: get venc stream time out!!continue
//可以确认，不管是snapshot or stream，都是

timeout拿不到video frame！！

>>原因: ov9712需要修改几个参数，也就是说，原本的init table并不正确！

#patch for ov9712

/home/toolkit/himm 0x200f0000 0

/home/toolkit/himm 0x20150400 1

/home/toolkit/himm 0x20150004 1

/home/toolkit/himm 0x20030030 1