Hi Everyone,
I'm using an ADV7280 to capture analog video and using VIP0 Port A (8-Bit) to capture it. Currently, I'm setting up the ADV7280 in user space before loading the VPSS firmware.
I can configure the VPSS firmware to create a Capture -> Null link, and once those links are created and started, I can see that we are receiving video data due to a periodic printout with capture stats. I configure, create, and start these links in the file In src_bios6/main_app/src/main_m3vpss.c. The code is essentially this (Light editing of code):
UInt32 cameraId;
UInt32 captureId;
CaptureLink_CreateParams capturePrm;
NullLink_CreateParams nullPrm;
CaptureLink_VipInstParams *pCaptureInstPrm;
CaptureLink_OutParams *pCaptureOutPrm;
System_linkControl( SYSTEM_LINK_ID_M3VPSS,
SYSTEM_M3VPSS_CMD_RESET_VIDEO_DEVICES,
NULL,
0,
TRUE );
System_linkControl( SYSTEM_LINK_ID_M3VPSS,
SYSTEM_COMMON_CMD_SET_CH2IVAHD_MAP_TBL,
&systemVid_encDecIvaChMapTbl,
sizeof(SystemVideo_Ivahd2ChMap_Tbl),
TRUE );
/* Link Ids */
captureId = SYSTEM_LINK_ID_CAPTURE;
nullId = SYSTEM_VPSS_LINK_ID_NULL_0;
/* Cature Link params */
CaptureLink_CreateParams_Init(&capturePrm);
capturePrm.numVipInst = 1;
capturePrm.tilerEnable = FALSE;
capturePrm.numBufsPerCh = 10;
capturePrm.outQueParams[0].nextLink = nullId;
pCaptureInstPrm = &capturePrm.vipInst[0];
pCaptureInstPrm->vipInstId = SYSTEM_CAPTURE_INST_VIP0_PORTA;
pCaptureInstPrm->videoDecoderId = SYSTEM_DEVICE_VID_DEC_DUMMY;
pCaptureInstPrm->standard = SYSTEM_STD_D1;
pCaptureInstPrm->numOutput = 1;
pCaptureInstPrm->inDataFormat = SYSTEM_DF_YUV422P;
pCaptureOutPrm = &pCaptureInstPrm->outParams[0];
pCaptureOutPrm->dataFormat = SYSTEM_DF_YUV420SP_UV;
pCaptureOutPrm->scEnable = FALSE;
pCaptureOutPrm->scOutWidth = 720; // used only if pCaptureOutPrm->scEnable is TRUE
pCaptureOutPrm->scOutHeight = 240; // used only if pCaptureOutPrm->scEnable is TRUE
pCaptureOutPrm->outQueId = 0;
pCaptureOutPrm->frameSkipMask = 0;
/*
* Capture NULL Link
*/
nullPrm.numInQue = 1;
nullPrm.inQueParams[0].prevLinkId = captureId;
nullPrm.inQueParams[0].prevLinkQueId = 0;
Vps_printf("capture link create time - %u ms\r\n", Utils_getCurTimeInMsec());
System_linkCreate(captureId, &capturePrm, sizeof(capturePrm));
Vps_printf("others link create time - %u ms\r\n", Utils_getCurTimeInMsec());
Vps_printf("null link create time - %u ms\r\n", Utils_getCurTimeInMsec());
System_linkCreate(nullId, &nullPrm, sizeof(nullPrm));
Vps_printf("null link create time - %u ms\r\n", Utils_getCurTimeInMsec());
System_linkStart( captureId );
Upon loading, I get a periodic print that outputs stats about the capture. If I disable the ADV7280 chip via an I2C command, the stats indicate that frames are no longer coming in, if I re-enable the chip, the stats indicate that frames are now coming in.
Currently, our system sets up all the MCFW links on the host side in a custom use case. I'm trying to setup the capture & null link under our custom use case on the host and I'm not seeing any frames being captured. Here is the code from the host side. I have edited this snippet to remove non-capture related code:
static uint32_t g_cap_id;
static uint32_t g_null_id;
CaptureLink_CreateParams capturePrm;
NullLink_CreateParams nullPrm;
CaptureLink_VipInstParams *pCaptureInstPrm;
CaptureLink_OutParams *pCaptureOutPrm;
/*
* Configure Capture Path
*/
OSA_printf("\n********* Entered Capture -> Encode -> Out (A8) ********\n");
vcapDecParams.videoIfMode = DEVICE_CAPT_VIDEO_IF_MODE_8BIT;
vcapDecParams.videoDataFormat = VF_YUV422P;
vcapDecParams.standard = VSYS_STD_AUTO_DETECT;
vcapDecParams.videoCaptureMode = DEVICE_CAPT_VIDEO_CAPTURE_MODE_SINGLE_CH_NON_MUX_EMBEDDED_SYNC;
vcapDecParams.videoSystem = DEVICE_VIDEO_DECODER_VIDEO_SYSTEM_AUTO_DETECT;
vcapDecParams.videoCropEnable = FALSE;
Vcap_configVideoDecoder( &vcapDecParams, 1 );
/*
* Setup Link IDs
*/
g_cap_id = SYSTEM_LINK_ID_CAPTURE;
g_null_id = SYSTEM_VPSS_LINK_ID_NULL_0;
/*
* Setup CaptureLink
*/
CaptureLink_CreateParams_Init(&capturePrm);
capturePrm.numVipInst = 1;
capturePrm.tilerEnable = FALSE;
capturePrm.numBufsPerCh = 10;
capturePrm.outQueParams[0].nextLink = g_null_id;
pCaptureInstPrm = &capturePrm.vipInst[0];
pCaptureInstPrm->vipInstId = SYSTEM_CAPTURE_INST_VIP0_PORTA;
pCaptureInstPrm->videoDecoderId = SYSTEM_DEVICE_VID_DEC_DUMMY;
pCaptureInstPrm->standard = SYSTEM_STD_D1;
pCaptureInstPrm->numOutput = 1;
pCaptureInstPrm->inDataFormat = SYSTEM_DF_YUV422P;
pCaptureOutPrm = &pCaptureInstPrm->outParams[0];
pCaptureOutPrm->dataFormat = SYSTEM_DF_YUV420SP_UV;
pCaptureOutPrm->scEnable = FALSE;
pCaptureOutPrm->scOutWidth = 720; // used only if pCaptureOutPrm->scEnable is TRUE
pCaptureOutPrm->scOutHeight = 240; // used only if pCaptureOutPrm->scEnable is TRUE
pCaptureOutPrm->outQueId = 0;
pCaptureOutPrm->frameSkipMask = 0;
nullPrm.numInQue = 1;
nullPrm.inQueParams[0].prevLinkId = g_cap_id;
nullPrm.inQueParams[0].prevLinkQueId = 0;
/*
* Reset M3VPSS & Set Enc/Dec Channel Map
*/
System_linkControl(SYSTEM_LINK_ID_M3VPSS, SYSTEM_M3VPSS_CMD_RESET_VIDEO_DEVICES,NULL,0,TRUE);
System_linkControl(SYSTEM_LINK_ID_M3VPSS,
SYSTEM_COMMON_CMD_SET_CH2IVAHD_MAP_TBL,
&systemVid_encDecIvaChMapTbl,
sizeof(SystemVideo_Ivahd2ChMap_Tbl),TRUE);
//CREATE
OSA_printf("############# CREATE CAPTURE LINK #################\n");
System_linkCreate(g_cap_id, &capturePrm, sizeof(capturePrm));
System_linkCreate(g_null_id, &nullPrm, sizeof(nullPrm));
System_linkStart(g_cap_id);
Note: The System_linkStart on the Host example typically would happen when I call the Vcap_start from a different part of code, but for the example, I'll have it get called here instead.
Could anyone tell me why when I startup capture from VPSS, I appear to capture frames without any issues, while when I start it from the A8 Host it appears that I don't get any frame capture? I'm wondering if somehow the VIP0 interface is being configured differently between the two, but I'm not sure how to check.
Thanks
