新路程------hi3516a CVBS venc抓取jpeg

来源：互联网发布：js得到div的高度编辑：程序博客网时间：2024/06/07 07:35

今天做sample_venc抓jpeg

首先选了'7'作为修改对象，因为也是jpeg

修改如下：

--- a/sample/venc/sample_venc.c
+++ b/sample/venc/sample_venc.c
@@ -19,7 +19,7 @@ extern "C" {

#include "sample_comm.h"

-VIDEO_NORM_E gs_enNorm = VIDEO_ENCODING_MODE_NTSC;
+VIDEO_NORM_E gs_enNorm = VIDEO_ENCODING_MODE_PAL;

/******************************************************************************
* function : show usage
@@ -413,7 +413,7 @@ END_VENC_1080P_CLASSIC_0: //system exit
HI_S32 SAMPLE_VENC_1080P_MJPEG_JPEG(HI_VOID)
{
PAYLOAD_TYPE_E enPayLoad = PT_MJPEG;
- PIC_SIZE_E enSize = PIC_HD1080;
+ PIC_SIZE_E enSize = PIC_D1;
HI_U32 u32Profile = 0;

VB_CONF_S stVbConf;
@@ -465,7 +465,7 @@ HI_S32 SAMPLE_VENC_1080P_MJPEG_JPEG(HI_VOID)
/******************************************
step 3: start vi dev & chn to capture
******************************************/
- stViConfig.enViMode = SENSOR_TYPE;
+ stViConfig.enViMode = SAMPLE_VI_MODE_1_D1;
stViConfig.enRotate = ROTATE_NONE;
stViConfig.enNorm = VIDEO_ENCODING_MODE_AUTO;
stViConfig.enViChnSet = VI_CHN_SET_NORMAL;
@@ -2144,7 +2144,7 @@ END_VENC_1080P_CLASSIC_0: //system exit
******************************************************************************/
HI_S32 SAMPLE_VENC_1080P_JPEG_Thumb(HI_VOID)
{
- PIC_SIZE_E enSize = PIC_HD1080;
+ PIC_SIZE_E enSize = PIC_D1;
ISP_DCF_INFO_S stIspDCF;

VB_CONF_S stVbConf;
@@ -2194,7 +2194,7 @@ HI_S32 SAMPLE_VENC_1080P_JPEG_Thumb(HI_VOID)
/******************************************
step 3: start vi dev & chn to capture
******************************************/
- stViConfig.enViMode = SENSOR_TYPE;
+ stViConfig.enViMode = SAMPLE_VI_MODE_1_D1;
stViConfig.enRotate = ROTATE_NONE;
stViConfig.enNorm = VIDEO_ENCODING_MODE_AUTO;
stViConfig.enViChnSet = VI_CHN_SET_NORMAL;
@@ -2260,7 +2260,7 @@ HI_S32 SAMPLE_VENC_1080P_JPEG_Thumb(HI_VOID)
step 5: set CDF info
******************************************/

- HI_MPI_ISP_GetDCFInfo(&stIspDCF);
+ /* HI_MPI_ISP_GetDCFInfo(&stIspDCF); 这里要注释掉，反正也没用，或许可以不注释，没试过

//description: Thumbnail test
memcpy(stIspDCF.au8ImageDescription,"Thumbnail test",strlen("Thumbnail test"));
@@ -2295,7 +2295,7 @@ HI_S32 SAMPLE_VENC_1080P_JPEG_Thumb(HI_VOID)
stIspDCF.u8WhiteBalance = 1;

HI_MPI_ISP_SetDCFInfo(&stIspDCF);
-
+*/

遇到的问题，一开始一定要看看venc这个节点的信息，宽和高是否正确

/proc/umap # cat venc

[VENC] Version: [Hi3516A_MPP_V1.0.6.0 B050 Release], Build Time[Mar 28 2016, 19:35:43]

-----MODULE PARAM--------------------------------------------------------------
VencBufferCache
0

-----VENC CHN ATTR 1-------------------------------------------------------------
ID Width Height Type ByFrame Timeout Sequence LeftBytes LeftFrm CurPacks prio
0 720 576 26 1 0 0 0 0 0 0

-----VENC CHN ATTR 2-------------------------------------------------------------
VeStr OsdStr SrcFr TarFr Timeref PixFmt PicAddr
NO NO -1 -1 1 NA 0x 0

-----VENC CHN RECEIVE STAT-------------------------------------------------------------
ID Start StartEx RecvLeft EncLeft
0 0 0 0 0

-----VENC VPSS QUERY-----------------------------------------------------------
ID Query QueryOk QueryFR Invld Full VbFail QueryFail InfoErr Stop
0 0 0 0 0 0 0 0 0 0

-----VENC SEND1----------------------------------------------------------------
ID VpssSnd VInfErr OthrSnd OInfErr Send Stop Full CropErr DrectSnd SizeErr
0 209 0 0 0 0 209 0 0 0 0

-----VENC SEND2----------------------------------------------------------------
ID SendVgs StartOk StartFail IntOk IntFail SrcAdd SrcSub DestAdd DestSub
0 0 0 0 0 0 0 0 0 0

-----VENC PIC QUEUE STATE------------------------------------------------------
ID Free Busy Vgs
0 6 0 0

-----VENC CHNL INFO------------------------------------------------------------
ID Inq InqOk Start StartOk Config VencInt ChaResLost OverLoad
0 842 0 0 0 0 0 0 0

-----VENC CROP INFO------------------------------------------------------------
ID CropEn StartX StartY Width Height
0 NO 0 0 0 0

-----VENC STREAM STATE------------------------------------------------------------
ID FreeCnt BusyCnt UserCnt UserGet UserRls GetTimes Interval FrameRate
0 0 0 0 0 0 0 0 0

如果上面的x，y不对，则肯定是SAMPLE_COMM_VI_GetSizeBySensor(&enSize);这里的参数不对。

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