Hi,
I am trying to read YUV frames from USB camera and display on the screen through VPSS. I have written one custom link to read the data from USB camera and the chain looks as below, ( I modified the capturedisplay use case to validate my test case)
V4L2Link -> ipcFramesOut (A8) -> ipcFramesIn (VPSS) -> display
Once I start the usecase, i could able to see the video till 1000 frames and getting assert in the following place "IpcFramesOutLink_processFrameBufs()
{
.......................
status =^M
OSA_queGet(&pObj->listElemQue, (Int32 *) & pListElem,^M
OSA_TIMEOUT_NONE);^M
OSA_assert (status == OSA_SOK)^M
...........
}
when we explored, we found that there is no valid buffers from the emptylist from the function and causing the issue,
IpcFramesOutLink_releaseFrameBufs()
{
....
"pListElem = ListMP_getHead(pObj->listMPInHndl);
if (pListElem != NULL) { ... }
...
}
I have attached our usecase for your reference. Any help would make us move further.
Note : Directly we are calling the "IpcFramesOutLink_putFullVideoFrames" and "IpcFramesOutLink_getEmptyVideoFrames" to send and receive the buffers from V4L2 link to ipcFramesOut link.
6574.v4l2_capturedisplay.c
/** ==================================================================
* @file multich_Stream_CaptureDisplay.c
*
* @path ipnc_mcfw/mcfw/src_linux/mcfw_api/usecases/
*
* @desc This File contains.
* ===================================================================
* Copyright (c) Texas Instruments Inc 2011, 2012
*
* Use of this software is controlled by the terms and conditions found
* in the license agreement under which this software has been supplied
* ===================================================================*/
/*------------------------------ TRIPLE OUT <1080p + D1 + MJPEG> ----------------------------------
Capture
RSZA RSZB
1080P60 D130
(YUV420) (YUV420)
| |
(0)-DUP0-(1) (0)-DUP1-(1)
| | | |
HDMI DISPLAY NULL1 TVOUT NULL0
------------------------------------------------------------------------------------------*/
#include "mcfw/src_linux/mcfw_api/usecases/multich_common.h"
#include "mcfw/src_linux/mcfw_api/usecases/multich_ipcbits.h"
#include "demos/mcfw_api_demos/multich_usecase/ti_mcfw_ipnc_main.h"
/* =============================================================================
* Externs
* ============================================================================= */
/* =============================================================================
* Use case code
* ============================================================================= */
#define NUM_DUP_LINK (3)
#define HDMIDIS_DUP_IDX (0)
#define TVOUT_DUP_IDX (1)
#define RAW_DUP_IDX (2)
/* ===================================================================
* @func MultiCh_createStreamCaptureDisplay
*
* @desc Function does the following
*
* @modif This function modifies the following structures
*
* @inputs This function takes the following inputs
* <argument name>
* Description of usage
* <argument name>
* Description of usage
*
* @outputs <argument name>
* Description of usage
*
* @return Return value of this function if any
* ==================================================================
*/
UInt32 gIpcFramesOutHLOSId;
UInt32 gIpcFramesInVpssId;
UInt32 gDisplayId;
UInt32 gMergeId;
Void v4l2_createStreamCaptureDisplay()
{
//v4l2camLink_CreateParams v4l2cameraHostrm; //HOST-A8---------->
//IpcBitsOutLinkHLOS_CreateParams ipcFramesOutHostPrm; //HOST-A8---------->
//IpcBitsInLinkRTOS_CreateParams ipcFramesInVpssPrm; //---------->VPSS-M3
IpcFramesOutLinkHLOS_CreateParams ipcFramesOutHostPrm;
IpcFramesInLinkRTOS_CreateParams ipcFramesInVpssPrm;
//SwMsLink_CreateParams swMsPrm;
DisplayLink_CreateParams displayPrm;
//Int32 status;
//////////////////////////////////////////////////////////////
OSA_printf("\n********** raviraj UVC - display usecase ********\n");
//gVdisModuleContext.ipcFramesOutHostId = SYSTEM_HOST_LINK_ID_IPC_FRAMES_OUT_0;
//gVdisModuleContext.ipcFramesInVpssFromHostId = SYSTEM_VPSS_LINK_ID_IPC_FRAMES_IN_0;
/* IPC structures init */
MULTICH_INIT_STRUCT(IpcFramesOutLinkHLOS_CreateParams,ipcFramesOutHostPrm);
MULTICH_INIT_STRUCT(IpcFramesInLinkRTOS_CreateParams,ipcFramesInVpssPrm);
OSA_printf("\n********** UVC - display usecase ********\n");
MultiCh_detectBoard();
System_linkControl(SYSTEM_LINK_ID_M3VPSS,SYSTEM_M3VPSS_CMD_RESET_VIDEO_DEVICES, NULL, 0, TRUE);
/* Link IDs */
OSA_printf("raviraj : CREATING LINK ID'S\n");
gIpcFramesOutHLOSId = SYSTEM_HOST_LINK_ID_IPC_FRAMES_OUT_0;
gIpcFramesInVpssId = SYSTEM_VPSS_LINK_ID_IPC_FRAMES_IN_0;
//gSwMsId = SYSTEM_LINK_ID_SW_MS_MULTI_INST_0;
gDisplayId = SYSTEM_LINK_ID_DISPLAY_0;
/* IPC BITS OUT HLOS Link */
OSA_printf("raviraj : SETTING A8 LINK TO VPSS LINK\n");
ipcFramesOutHostPrm.baseCreateParams.inQueParams.prevLinkQueId = 0;
ipcFramesOutHostPrm.baseCreateParams.numOutQue = 1;
ipcFramesOutHostPrm.baseCreateParams.inputFrameRate = 10;//30
ipcFramesOutHostPrm.baseCreateParams.outputFrameRate = 10;//30
ipcFramesOutHostPrm.baseCreateParams.outQueParams[0].nextLink = gIpcFramesInVpssId;
ipcFramesOutHostPrm.baseCreateParams.notifyNextLink = FALSE; // SARA TRUE
ipcFramesOutHostPrm.baseCreateParams.notifyPrevLink = FALSE;
ipcFramesOutHostPrm.baseCreateParams.noNotifyMode = TRUE ; // SARA FALSE
ipcFramesOutHostPrm.inQueInfo.numCh = 1;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].startX = 0;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].startY = 0;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].height = 480;//640;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].width = 640;//480;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].pitch[0] = 1280;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].pitch[1] = 1280;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].pitch[2] = 1280;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].bufType = SYSTEM_BUF_TYPE_VIDFRAME;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].codingformat = -1;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].memType = SYSTEM_MT_NONTILEDMEM;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].dataFormat = SYSTEM_DF_YUV422I_YUYV;
ipcFramesOutHostPrm.inQueInfo.chInfo[0].scanFormat = SYSTEM_SF_PROGRESSIVE;//SYSTEM_SF_INTERLACED;//
ipcFramesInVpssPrm.baseCreateParams.inQueParams.prevLinkId = gIpcFramesOutHLOSId;
ipcFramesInVpssPrm.baseCreateParams.inQueParams.prevLinkQueId = 0;
ipcFramesInVpssPrm.baseCreateParams.inputFrameRate = 10;//30;
ipcFramesInVpssPrm.baseCreateParams.noNotifyMode = TRUE;
ipcFramesInVpssPrm.baseCreateParams.notifyNextLink = TRUE;
ipcFramesInVpssPrm.baseCreateParams.notifyPrevLink = FALSE ; // TRUE;
ipcFramesInVpssPrm.baseCreateParams.numOutQue = 1;
ipcFramesInVpssPrm.baseCreateParams.outQueParams[0].nextLink = gDisplayId;
ipcFramesInVpssPrm.baseCreateParams.outputFrameRate = 10;//30;
/* DISPLAY Link */
MULTICH_INIT_STRUCT(DisplayLink_CreateParams,displayPrm);
//displayPrm.inQueParams[0].prevLinkId = gSwMsId;
displayPrm.inQueParams[0].prevLinkId = gIpcFramesInVpssId;
displayPrm.inQueParams[0].prevLinkQueId = 0;
displayPrm.displayRes = gVdisModuleContext.vdisConfig.deviceParams[VDIS_DEV_HDMI].resolution;
displayPrm.displayId = DISPLAY_LINK_DISPLAY_SC2;
displayPrm.numInputQueues = 1;
displayPrm.activeQueue = 0;
displayPrm.forceFieldSeparatedInputMode = FALSE;
/* Link creation */
System_linkCreate(SYSTEM_HOST_LINK_ID_V4L2,NULL,0);
System_linkCreate(gIpcFramesOutHLOSId,&ipcFramesOutHostPrm,sizeof(ipcFramesOutHostPrm));
System_linkCreate(gIpcFramesInVpssId,&ipcFramesInVpssPrm,sizeof(ipcFramesInVpssPrm));
//System_linkCreate(gSwMsId,&swMsPrm,sizeof(SwMsLink_CreateParams));
//OSA_printf("raviraj ::: MOSAIC : SW MOSAIC LINK CREATED\n");
System_linkCreate(gDisplayId,&displayPrm,sizeof(DisplayLink_CreateParams));
OSA_printf("raviraj : DISPLAY LINK CREATED\n");
OSA_printf("raviraj : USECASE SETUP DONE\n");
}
/* ===================================================================
* @func MultiCh_deleteStreamCaptureDisplay
*
* @desc Function does the following
*
* @modif This function modifies the following structures
*
* @inputs This function takes the following inputs
* <argument name>
* Description of usage
* <argument name>
* Description of usage
*
* @outputs <argument name>
* Description of usage
*
* @return Return value of this function if any
* ==================================================================
*/
Void v4l2_deleteStreamCaptureDisplay()
{
System_linkDelete(gDisplayId);
// System_linkDelete(gSwMsId);
System_linkDelete(gMergeId);
System_linkDelete(gIpcFramesInVpssId);
System_linkDelete(gIpcFramesOutHLOSId);
/* Print the HWI, SWI and all tasks load */
/* Reset the accumulated timer ticks */
MultiCh_prfLoadCalcEnable(FALSE, TRUE, FALSE);
}
