yair/gst-plugin-linescan
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

idsueyesrc: reduce likelihood of dropped frames and don't abort if we have some

Browse Source
This commit is contained in:
Joshua M. Doe 2017-03-08 15:45:33 -05:00
parent 288cac2c6d
commit 3e20a7491e
2 changed files with 44 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
sys/idsueye/gstidsueyesrc.c
View File

@ -147,6 +147,7 @@ static void
gst_idsueyesrc_reset (GstIdsueyeSrc * src)
{
src->hCam = 0;
src->is_started = FALSE;
src->last_frame_count = 0;
src->total_dropped_frames = 0;
@ -486,21 +487,6 @@ gst_idsueyesrc_start (GstBaseSrc * bsrc)
("Failed to init image queue"), (NULL));
return FALSE;
}
// TODO: remove this
is_ParameterSet (src->hCam, IS_PARAMETERSET_CMD_SAVE_FILE,
L"C:/temp/ids/current_params.ini", 0);
/* TODO: possibly move this to _create */
ret = is_CaptureVideo (src->hCam, IS_DONT_WAIT);
if (ret != IS_SUCCESS) {
GST_ELEMENT_ERROR (src, STREAM, WRONG_TYPE,
("Failed to start video capture"), (NULL));
return FALSE;
}
/* TODO: check timestamps on buffers vs start time */
src->acq_start_time =
gst_clock_get_time (gst_element_get_clock (GST_ELEMENT (src)));
return TRUE;
}
@ -639,13 +625,47 @@ gst_idsueyesrc_create (GstPushSrc * psrc, GstBuffer ** buf)
GST_LOG_OBJECT (src, "create");
ret = is_WaitForNextImage (src->hCam, src->timeout, &pBuffer, &nMemID);
if (!src->is_started) {
ret = is_CaptureVideo (src->hCam, IS_DONT_WAIT);
if (ret != IS_SUCCESS) {
GST_ELEMENT_ERROR (src, STREAM, WRONG_TYPE,
("Failed to start video capture"), (NULL));
return GST_FLOW_ERROR;
}
/* TODO: check timestamps on buffers vs start time */
src->acq_start_time =
gst_clock_get_time (gst_element_get_clock (GST_ELEMENT (src)));
src->is_started = TRUE;
}
while (TRUE) {
ret = is_WaitForNextImage (src->hCam, src->timeout, &pBuffer, &nMemID);
if (ret == IS_SUCCESS) {
break;
} else if (ret == IS_CAPTURE_STATUS) {
UEYE_CAPTURE_STATUS_INFO captureStatusInfo;
ret =
is_CaptureStatus (src->hCam, IS_CAPTURE_STATUS_INFO_CMD_GET,
(void *) &captureStatusInfo, sizeof (captureStatusInfo));
if (ret != IS_SUCCESS) {
GST_WARNING_OBJECT (src,
"Some sort of error occurred with capture, but failed to query capture status");
} else {
GST_WARNING_OBJECT (src,
"Capture errors occurred, perhaps dropped frames, total of %d errors",
captureStatusInfo.dwCapStatusCnt_Total);
}
continue;
} else {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Failed to acquire frame before timeout: %s",
gst_idsueyesrc_get_error_string (src, ret)), (NULL));
return GST_FLOW_ERROR;
}
}
clock = gst_element_get_clock (GST_ELEMENT (src));
clock_time = gst_clock_get_time (clock);
@ -665,7 +685,7 @@ gst_idsueyesrc_create (GstPushSrc * psrc, GstBuffer ** buf)
// TODO: use is_GetImageInfo to get timestamp, dropped frames
ret = is_GetImageInfo (src->hCam, nMemID, &imageInfo, sizeof (imageInfo));
GST_DEBUG_OBJECT (src, "frame number %d", imageInfo.u64FrameNumber);
GST_LOG_OBJECT (src, "frame number %d", imageInfo.u64FrameNumber);
/* TODO: use allocator or use from pool */
*buf =
@ -676,8 +696,8 @@ gst_idsueyesrc_create (GstPushSrc * psrc, GstBuffer ** buf)
//memcpy (minfo.data, ((guint8 *) circ_handle->pBufData), minfo.size);
is_CopyImageMem (src->hCam, pBuffer, nMemID, (char *) minfo.data);
gst_buffer_unmap (*buf, &minfo);
ret = is_UnlockSeqBuf (src->hCam, nMemID, pBuffer);
ret = is_UnlockSeqBuf (src->hCam, nMemID, pBuffer);
if (ret != IS_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Failed to unlock buffer: %s", gst_idsueyesrc_get_error_string (src,

1
sys/idsueye/gstidsueyesrc.h
View File

@ -44,6 +44,7 @@ struct _GstIdsueyeSrc
/* camera handle */
HIDS hCam;
gboolean is_started;
char* seqImgMem[MAX_SEQ_BUFFERS];
int seqMemId[MAX_SEQ_BUFFERS];