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niimaqsrc: Refactor pointer to GstNiImaqSrc to niimaqsrc

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This commit is contained in:
Joshua M. Doe 2010-04-23 10:39:30 -04:00
parent 666edbe598
commit 763b869063
1 changed files with 128 additions and 128 deletions
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256
sys/gstniimaq.c
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@ -456,26 +456,26 @@ gst_niimaqsrc_class_init (GstNiImaqSrcClass * klass)
* Initialize this instance of #GstNiImaq
*/
static void
gst_niimaqsrc_init (GstNiImaqSrc * src, GstNiImaqSrcClass * g_class)
gst_niimaqsrc_init (GstNiImaqSrc * niimaqsrc, GstNiImaqSrcClass * g_class)
{
GstPad *srcpad = GST_BASE_SRC_PAD (src);
GstPad *srcpad = GST_BASE_SRC_PAD (niimaqsrc);
/* set source as live (no preroll) */
gst_base_src_set_live (GST_BASE_SRC (src), TRUE);
gst_base_src_set_live (GST_BASE_SRC (niimaqsrc), TRUE);
/* initialize member variables */
src->timestamp_offset = 0;
src->caps = NULL;
src->bufsize = 10;
src->n_frames = 0;
src->cumbufnum = 0;
src->n_dropped_frames = 0;
src->buflist = 0;
src->sid = 0;
src->iid = 0;
src->camera_name = g_strdup (DEFAULT_PROP_INTERFACE);
src->interface_name = g_strdup (DEFAULT_PROP_INTERFACE);
src->session_started = FALSE;
niimaqsrc->timestamp_offset = 0;
niimaqsrc->caps = NULL;
niimaqsrc->bufsize = 10;
niimaqsrc->n_frames = 0;
niimaqsrc->cumbufnum = 0;
niimaqsrc->n_dropped_frames = 0;
niimaqsrc->buflist = 0;
niimaqsrc->sid = 0;
niimaqsrc->iid = 0;
niimaqsrc->camera_name = g_strdup (DEFAULT_PROP_INTERFACE);
niimaqsrc->interface_name = g_strdup (DEFAULT_PROP_INTERFACE);
niimaqsrc->session_started = FALSE;
}
@ -488,13 +488,13 @@ gst_niimaqsrc_init (GstNiImaqSrc * src, GstNiImaqSrcClass * g_class)
static void
gst_niimaqsrc_dispose (GObject * object)
{
GstNiImaqSrc *src = GST_NIIMAQSRC (object);
GstNiImaqSrc *niimaqsrc = GST_NIIMAQSRC (object);
/* free memory allocated */
g_free (src->camera_name);
src->camera_name = NULL;
g_free (src->interface_name);
src->interface_name = NULL;
g_free (niimaqsrc->camera_name);
niimaqsrc->camera_name = NULL;
g_free (niimaqsrc->interface_name);
niimaqsrc->interface_name = NULL;
/* chain dispose fuction of parent class */
G_OBJECT_CLASS (parent_class)->dispose (object);
@ -504,23 +504,23 @@ static void
gst_niimaqsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstNiImaqSrc *src = GST_NIIMAQSRC (object);
GstNiImaqSrc *niimaqsrc = GST_NIIMAQSRC (object);
switch (prop_id) {
case PROP_INTERFACE:
if (src->interface_name)
g_free (src->interface_name);
src->interface_name = g_strdup (g_value_get_string (value));
if (niimaqsrc->interface_name)
g_free (niimaqsrc->interface_name);
niimaqsrc->interface_name = g_strdup (g_value_get_string (value));
if (src->camera_name)
g_free (src->camera_name);
src->camera_name = g_strdup (g_value_get_string (value));
if (niimaqsrc->camera_name)
g_free (niimaqsrc->camera_name);
niimaqsrc->camera_name = g_strdup (g_value_get_string (value));
break;
case PROP_TIMESTAMP_OFFSET:
src->timestamp_offset = g_value_get_int64 (value);
niimaqsrc->timestamp_offset = g_value_get_int64 (value);
break;
case PROP_BUFSIZE:
src->bufsize = g_value_get_int (value);
niimaqsrc->bufsize = g_value_get_int (value);
default:
break;
}
@ -530,17 +530,17 @@ static void
gst_niimaqsrc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstNiImaqSrc *src = GST_NIIMAQSRC (object);
GstNiImaqSrc *niimaqsrc = GST_NIIMAQSRC (object);
switch (prop_id) {
case PROP_INTERFACE:
g_value_set_string (value, src->interface_name);
g_value_set_string (value, niimaqsrc->interface_name);
break;
case PROP_TIMESTAMP_OFFSET:
g_value_set_int64 (value, src->timestamp_offset);
g_value_set_int64 (value, niimaqsrc->timestamp_offset);
break;
case PROP_BUFSIZE:
g_value_set_int (value, src->bufsize);
g_value_set_int (value, niimaqsrc->bufsize);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -551,16 +551,16 @@ gst_niimaqsrc_get_property (GObject * object, guint prop_id, GValue * value,
static GstCaps *
gst_niimaqsrc_get_caps (GstBaseSrc * bsrc)
{
GstNiImaqSrc *gsrc = GST_NIIMAQSRC (bsrc);
GstNiImaqSrc *niimaqsrc = GST_NIIMAQSRC (bsrc);
GST_DEBUG_OBJECT (bsrc, "Entering function get_caps");
/* return template caps if we don't know the actual camera caps */
if (!gsrc->caps) {
return gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (gsrc)));
if (!niimaqsrc->caps) {
return gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (niimaqsrc)));
}
return gst_caps_copy (gsrc->caps);
return gst_caps_copy (niimaqsrc->caps);
}
@ -569,30 +569,30 @@ gst_niimaqsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
{
gboolean res = TRUE;
GstNiImaqSrc *niimaq;
GstNiImaqSrc *niimaqsrc;
gint width, height;
gint bpp, depth;
niimaq = GST_NIIMAQSRC (bsrc);
niimaqsrc = GST_NIIMAQSRC (bsrc);
GST_DEBUG_OBJECT (bsrc, "Entering function set_caps");
GST_DEBUG_OBJECT (caps, "are the caps being set");
if (niimaq->caps) {
gst_caps_unref (niimaq->caps);
niimaq->caps = gst_caps_copy (caps);
if (niimaqsrc->caps) {
gst_caps_unref (niimaqsrc->caps);
niimaqsrc->caps = gst_caps_copy (caps);
}
res = gst_niimaqsrc_parse_caps (niimaq->caps, &width, &height, &depth, &bpp);
res = gst_niimaqsrc_parse_caps (niimaqsrc->caps, &width, &height, &depth, &bpp);
if (res) {
/* looks ok here */
niimaq->width = width;
niimaq->height = height;
niimaq->depth = depth;
niimaq->bpp = bpp;
niimaq->framesize = width * height * (depth/8);
niimaqsrc->width = width;
niimaqsrc->height = height;
niimaqsrc->depth = depth;
niimaqsrc->bpp = bpp;
niimaqsrc->framesize = width * height * (depth/8);
}
return res;
@ -624,7 +624,7 @@ gst_niimaqsrc_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
static GstFlowReturn
gst_niimaqsrc_create (GstPushSrc * psrc, GstBuffer ** buffer)
{
GstNiImaqSrc *src = GST_NIIMAQSRC (psrc);
GstNiImaqSrc *niimaqsrc = GST_NIIMAQSRC (psrc);
gpointer data;
GstCaps *caps;
GstFlowReturn res = GST_FLOW_OK;
@ -636,63 +636,63 @@ gst_niimaqsrc_create (GstPushSrc * psrc, GstBuffer ** buffer)
uInt32 dropped;
/* start the IMAQ acquisition session if we haven't done so yet */
if (!src->session_started) {
GST_DEBUG_OBJECT (src, "Starting acquisition");
if (!niimaqsrc->session_started) {
GST_DEBUG_OBJECT (niimaqsrc, "Starting acquisition");
/* try to open the camera five times */
for (i = 0; i < 5; i++) {
rval = imgSessionStartAcquisition (src->sid);
rval = imgSessionStartAcquisition (niimaqsrc->sid);
if (rval == 0) {
break;
}
else {
gst_niimaqsrc_report_imaq_error (rval);
GST_LOG_OBJECT (src, "camera is still off , wait 50ms and retry");
GST_LOG_OBJECT (niimaqsrc, "camera is still off , wait 50ms and retry");
g_usleep (50000);
}
}
/* we tried five times and failed, so we error */
if (i >= 5) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED,
("Camera doesn't seem to want to turn on!"),
("Camera doesn't seem to want to turn on!"));
if (src->sid) {
rval = imgClose (src->sid,TRUE);
if (niimaqsrc->sid) {
rval = imgClose (niimaqsrc->sid,TRUE);
gst_niimaqsrc_report_imaq_error (rval);
src->sid = 0;
niimaqsrc->sid = 0;
}
if (src->iid) {
rval = imgClose (src->iid,TRUE);
if (niimaqsrc->iid) {
rval = imgClose (niimaqsrc->iid,TRUE);
gst_niimaqsrc_report_imaq_error (rval);
src->iid = 0;
niimaqsrc->iid = 0;
}
return GST_FLOW_ERROR;
}
src->session_started = TRUE;
niimaqsrc->session_started = TRUE;
}
data = g_malloc(src->framesize);
data = g_malloc(niimaqsrc->framesize);
GST_DEBUG_OBJECT(src, "Copying IMAQ buffer %d", src->cumbufnum);
GST_DEBUG_OBJECT(niimaqsrc, "Copying IMAQ buffer %d", niimaqsrc->cumbufnum);
rval = imgSessionCopyBufferByNumber (src->sid, src->cumbufnum, data,
rval = imgSessionCopyBufferByNumber (niimaqsrc->sid, niimaqsrc->cumbufnum, data,
IMG_OVERWRITE_GET_OLDEST, &copied_number, &copied_index);
if (rval) {
gst_niimaqsrc_report_imaq_error (rval);
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("failed to copy buffer %d", src->cumbufnum),
("failed to copy buffer %d, IMAQ error: \"%s\"", src->cumbufnum));
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED,
("failed to copy buffer %d", niimaqsrc->cumbufnum),
("failed to copy buffer %d, IMAQ error: \"%s\"", niimaqsrc->cumbufnum));
goto error;
}
*buffer = gst_buffer_new ();
GST_BUFFER_DATA (*buffer) = data;
GST_BUFFER_MALLOCDATA (*buffer) = data;
GST_BUFFER_SIZE (*buffer) = src->framesize;
GST_BUFFER_SIZE (*buffer) = niimaqsrc->framesize;
/* set caps of src pad to buffer */
caps = gst_pad_get_caps (GST_BASE_SRC_PAD (psrc));
@ -705,17 +705,17 @@ gst_niimaqsrc_create (GstPushSrc * psrc, GstBuffer ** buffer)
src->rate_denominator, src->rate_numerator);
}*/
dropped = copied_number - src->cumbufnum;
dropped = copied_number - niimaqsrc->cumbufnum;
if (dropped > 0) {
src->n_dropped_frames += dropped;
GST_WARNING_OBJECT (src, "Asked to copy buffer %d but was given %d",
src->cumbufnum, copied_number);
GST_WARNING_OBJECT (src, "Dropped %d frames (%d total)", dropped, src->n_dropped_frames);
niimaqsrc->n_dropped_frames += dropped;
GST_WARNING_OBJECT (niimaqsrc, "Asked to copy buffer %d but was given %d",
niimaqsrc->cumbufnum, copied_number);
GST_WARNING_OBJECT (niimaqsrc, "Dropped %d frames (%d total)", dropped, niimaqsrc->n_dropped_frames);
}
/* set cumulative buffer number to get next frame */
src->cumbufnum = copied_number + 1;
src->n_frames++;
niimaqsrc->cumbufnum = copied_number + 1;
niimaqsrc->n_frames++;
/*if (src->rate_numerator != 0) {
src->running_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND,
@ -827,7 +827,7 @@ gst_niimaqsrc_set_caps_framesize (GstStructure * gs, gint width, gint height)
* Returns: the #GstCaps of the src pad. Unref the caps when you no longer need it.
*/
GstCaps *
gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * src)
gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * niimaqsrc)
{
GstCaps *gcaps = NULL;
Int32 rval;
@ -837,28 +837,28 @@ gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * src)
gcaps = gst_caps_new_empty ();
if (!src->iid) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Camera interface not open"),
if (!niimaqsrc->iid) {
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED, ("Camera interface not open"),
("Camera interface not open"));
goto error;
}
/* retrieve caps from IMAQ interface */
rval = imgGetAttribute (src->iid, IMG_ATTR_BITSPERPIXEL, &val);
rval = imgGetAttribute (niimaqsrc->iid, IMG_ATTR_BITSPERPIXEL, &val);
gst_niimaqsrc_report_imaq_error (rval);
bpp = val;
rval &= imgGetAttribute (src->iid, IMG_ATTR_BYTESPERPIXEL, &val);
rval &= imgGetAttribute (niimaqsrc->iid, IMG_ATTR_BYTESPERPIXEL, &val);
gst_niimaqsrc_report_imaq_error (rval);
depth = val*8;
rval &= imgGetAttribute (src->iid, IMG_ATTR_ROI_WIDTH, &val);
rval &= imgGetAttribute (niimaqsrc->iid, IMG_ATTR_ROI_WIDTH, &val);
gst_niimaqsrc_report_imaq_error (rval);
width = val;
rval &= imgGetAttribute (src->iid, IMG_ATTR_ROI_HEIGHT, &val);
rval &= imgGetAttribute (niimaqsrc->iid, IMG_ATTR_ROI_HEIGHT, &val);
gst_niimaqsrc_report_imaq_error (rval);
height = val;
if (rval) {
GST_ELEMENT_ERROR (src, STREAM, FAILED,
GST_ELEMENT_ERROR (niimaqsrc, STREAM, FAILED,
("attempt to read attributes failed"),
("attempt to read attributes failed"));
goto error;
@ -868,7 +868,7 @@ gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * src)
gs = gst_structure_empty_new ("video");
if (!gst_niimaqsrc_set_caps_color (gs, bpp, depth) ||
!gst_niimaqsrc_set_caps_framesize (gs, width, height)) {
GST_ELEMENT_ERROR (src, STREAM, FAILED,
GST_ELEMENT_ERROR (niimaqsrc, STREAM, FAILED,
("attempt to set caps %dx%dx%d (%d) failed", width, height, depth, bpp),
("attempt to set caps %dx%dx%d (%d) failed", width, height, depth, bpp));
goto error;
@ -911,60 +911,60 @@ error:
static gboolean
gst_niimaqsrc_start (GstBaseSrc * src)
{
GstNiImaqSrc* filter = GST_NIIMAQSRC(src);
GstNiImaqSrc* niimaqsrc = GST_NIIMAQSRC(src);
Int32 rval;
gint i;
filter->iid = 0;
filter->sid = 0;
niimaqsrc->iid = 0;
niimaqsrc->sid = 0;
GST_LOG_OBJECT (filter, "Opening IMAQ interface: %s", filter->interface_name);
GST_LOG_OBJECT (niimaqsrc, "Opening IMAQ interface: %s", niimaqsrc->interface_name);
/* open IMAQ interface */
rval=imgInterfaceOpen(filter->interface_name,&(filter->iid));
rval=imgInterfaceOpen(niimaqsrc->interface_name,&(niimaqsrc->iid));
if (rval) {
gst_niimaqsrc_report_imaq_error (rval);
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, ("Failed to open IMAQ interface"),
("Failed to open camera interface %s", filter->interface_name));
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED, ("Failed to open IMAQ interface"),
("Failed to open camera interface %s", niimaqsrc->interface_name));
goto error;
}
GST_LOG_OBJECT (filter, "Opening IMAQ session: %s", filter->interface_name);
GST_LOG_OBJECT (niimaqsrc, "Opening IMAQ session: %s", niimaqsrc->interface_name);
/* open IMAQ session */
rval=imgSessionOpen(filter->iid, &(filter->sid));
rval=imgSessionOpen(niimaqsrc->iid, &(niimaqsrc->sid));
if (rval) {
gst_niimaqsrc_report_imaq_error (rval);
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, ("Failed to open IMAQ session"),
("Failed to open camera session %d", filter->sid));
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED, ("Failed to open IMAQ session"),
("Failed to open IMAQ session %d", niimaqsrc->sid));
goto error;
}
if (filter->caps) {
gst_caps_unref (filter->caps);
filter->caps = NULL;
if (niimaqsrc->caps) {
gst_caps_unref (niimaqsrc->caps);
niimaqsrc->caps = NULL;
}
/* get caps from camera and set to src pad */
filter->caps = gst_niimaqsrc_get_cam_caps (filter);
if (filter->caps == NULL) {
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, ("Failed to get caps from IMAQ"),
niimaqsrc->caps = gst_niimaqsrc_get_cam_caps (niimaqsrc);
if (niimaqsrc->caps == NULL) {
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED, ("Failed to get caps from IMAQ"),
("Failed to get caps from IMAQ"));
goto error;
}
GST_LOG_OBJECT (filter, "Creating ring with %d buffers", filter->bufsize);
GST_LOG_OBJECT (niimaqsrc, "Creating ring with %d buffers", niimaqsrc->bufsize);
/* create array of pointers to give to IMAQ for creating internal buffers */
filter->buflist = g_new (guint32*, filter->bufsize);
for (i=0; i < filter->bufsize; i++) {
filter->buflist[i] = 0;
niimaqsrc->buflist = g_new (guint32*, niimaqsrc->bufsize);
for (i=0; i < niimaqsrc->bufsize; i++) {
niimaqsrc->buflist[i] = 0;
}
rval=imgRingSetup (filter->sid, filter->bufsize, (void**)(filter->buflist), 0, FALSE);
rval=imgRingSetup (niimaqsrc->sid, niimaqsrc->bufsize, (void**)(niimaqsrc->buflist), 0, FALSE);
if (rval) {
gst_niimaqsrc_report_imaq_error (rval);
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, ("Failed to create ring buffer"),
("Failed to create ring buffer with %d buffers", filter->bufsize));
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED, ("Failed to create ring buffer"),
("Failed to create ring buffer with %d buffers", niimaqsrc->bufsize));
goto error;
}
@ -981,15 +981,15 @@ gst_niimaqsrc_start (GstBaseSrc * src)
error:
/* close IMAQ session and interface */
if(filter->sid) {
rval = imgClose(filter->sid,TRUE);
if(niimaqsrc->sid) {
rval = imgClose(niimaqsrc->sid,TRUE);
gst_niimaqsrc_report_imaq_error (rval);
filter->sid = 0;
niimaqsrc->sid = 0;
}
if(filter->iid) {
rval = imgClose(filter->iid,TRUE);
if(niimaqsrc->iid) {
rval = imgClose(niimaqsrc->iid,TRUE);
gst_niimaqsrc_report_imaq_error (rval);
filter->iid = 0;
niimaqsrc->iid = 0;
}
return FALSE;;
@ -1007,36 +1007,36 @@ error:
static gboolean
gst_niimaqsrc_stop (GstBaseSrc * src)
{
GstNiImaqSrc* filter = GST_NIIMAQSRC (src);
GstNiImaqSrc* niimaqsrc = GST_NIIMAQSRC (src);
Int32 rval;
/* stop IMAQ session */
rval = imgSessionStopAcquisition (filter->sid);
rval = imgSessionStopAcquisition (niimaqsrc->sid);
if (rval) {
gst_niimaqsrc_report_imaq_error (rval);
GST_ELEMENT_ERROR (filter, RESOURCE, FAILED, ("Unable to stop acquisition"),
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED, ("Unable to stop acquisition"),
("Unable to stop acquisition"));
}
filter->session_started = FALSE;
niimaqsrc->session_started = FALSE;
GST_DEBUG_OBJECT (filter, "Acquisition stopped");
GST_DEBUG_OBJECT (niimaqsrc, "Acquisition stopped");
/* close IMAQ session and interface */
if(filter->sid) {
rval = imgClose(filter->sid,TRUE);
if(niimaqsrc->sid) {
rval = imgClose(niimaqsrc->sid,TRUE);
gst_niimaqsrc_report_imaq_error (rval);
filter->sid = 0;
niimaqsrc->sid = 0;
}
if(filter->iid) {
rval = imgClose(filter->iid,TRUE);
if(niimaqsrc->iid) {
rval = imgClose(niimaqsrc->iid,TRUE);
gst_niimaqsrc_report_imaq_error (rval);
filter->iid = 0;
niimaqsrc->iid = 0;
}
GST_DEBUG_OBJECT (filter, "IMAQ interface closed");
GST_DEBUG_OBJECT (niimaqsrc, "IMAQ interface closed");
gst_caps_unref (filter->caps);
filter->caps = NULL;
gst_caps_unref (niimaqsrc->caps);
niimaqsrc->caps = NULL;
return TRUE;
}