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-rw-r--r--sys/v4l2/v4l2_calls.c479
1 files changed, 206 insertions, 273 deletions
diff --git a/sys/v4l2/v4l2_calls.c b/sys/v4l2/v4l2_calls.c
index 2ec66510..70c088cf 100644
--- a/sys/v4l2/v4l2_calls.c
+++ b/sys/v4l2/v4l2_calls.c
@@ -30,6 +30,9 @@
#include <errno.h>
#include <unistd.h>
#include "v4l2_calls.h"
+#include "gstv4l2tuner.h"
+#include "gstv4l2xoverlay.h"
+#include "gstv4l2colorbalance.h"
#define DEBUG(format, args...) \
GST_DEBUG_OBJECT (\
@@ -70,55 +73,126 @@ static gboolean
gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
{
gint n;
+ const GList *pads =
+ gst_element_get_pad_list (GST_ELEMENT (v4l2element));
+ GstPadDirection dir = GST_PAD_UNKNOWN;
DEBUG("getting enumerations");
GST_V4L2_CHECK_OPEN(v4l2element);
+ /* sinks have outputs, all others have inputs */
+ if (pads && g_list_length ((GList *) pads) == 1)
+ dir = GST_PAD_DIRECTION (GST_PAD (pads->data));
+
+ if (dir == GST_PAD_SINK) {
/* and now, the inputs */
- for (n=0;;n++) {
- struct v4l2_input input, *inpptr;
- input.index = n;
- if (ioctl(v4l2element->video_fd, VIDIOC_ENUMINPUT, &input) < 0) {
- if (errno == EINVAL)
- break; /* end of enumeration */
- else {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get no. %d in input enumeration for %s: %s",
- n, v4l2element->device, g_strerror(errno));
- return FALSE;
+ for (n=0;;n++) {
+ struct v4l2_input input;
+ GstV4l2TunerChannel *v4l2channel;
+ GstTunerChannel *channel;
+
+ input.index = n;
+ if (ioctl(v4l2element->video_fd, VIDIOC_ENUMINPUT,
+ &input) < 0) {
+ if (errno == EINVAL)
+ break; /* end of enumeration */
+ else {
+ gst_element_error(GST_ELEMENT(v4l2element),
+ "Failed to get no. %d in input enumeration for %s: %s",
+ n, v4l2element->device,
+ g_strerror(errno));
+ return FALSE;
+ }
}
- }
- inpptr = g_malloc(sizeof(input));
- memcpy(inpptr, &input, sizeof(input));
- v4l2element->inputs = g_list_append(v4l2element->inputs, inpptr);
-
- v4l2element->input_names = g_list_append(v4l2element->input_names, inpptr->name);
- }
- /* outputs */
- for (n=0;;n++) {
- struct v4l2_output output, *outptr;
- output.index = n;
- if (ioctl(v4l2element->video_fd, VIDIOC_ENUMOUTPUT, &output) < 0) {
- if (errno == EINVAL)
- break; /* end of enumeration */
- else {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get no. %d in output enumeration for %s: %s",
- n, v4l2element->device, g_strerror(errno));
- return FALSE;
+ v4l2channel =
+ g_object_new(GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
+ channel = GST_TUNER_CHANNEL(v4l2channel);
+ channel->label = g_strdup(input.name);
+ channel->flags = GST_TUNER_CHANNEL_INPUT;
+ v4l2channel->index = n;
+ if (input.type == V4L2_INPUT_TYPE_TUNER) {
+ struct v4l2_tuner vtun;
+
+ v4l2channel->tuner = input.tuner;
+ channel->flags |= GST_TUNER_CHANNEL_FREQUENCY;
+
+ vtun.index = input.tuner;
+ if (ioctl(v4l2element->video_fd, VIDIOC_G_TUNER,
+ &vtun) < 0) {
+ gst_element_error(GST_ELEMENT(v4l2element),
+ "Failed to get tuner %d settings on %s: %s",
+ input.tuner,
+ v4l2element->device,
+ g_strerror(errno));
+ g_object_unref(G_OBJECT(channel));
+ return FALSE;
+ }
+ channel->min_frequency = vtun.rangelow;
+ channel->max_frequency = vtun.rangehigh;
+ channel->min_signal = 0;
+ channel->max_signal = 0xffff;
+ }
+ if (input.audioset) {
+ /* we take the first. We don't care for
+ * the others for now */
+ while (!(input.audioset &
+ (1<<v4l2channel->audio)))
+ v4l2channel->audio++;
+ channel->flags |= GST_TUNER_CHANNEL_AUDIO;
}
+
+ v4l2element->channels =
+ g_list_append(v4l2element->channels,
+ (gpointer) channel);
}
- outptr = g_malloc(sizeof(output));
- memcpy(outptr, &output, sizeof(output));
- v4l2element->outputs = g_list_append(v4l2element->outputs, outptr);
+ } else {
+ /* outputs */
+ for (n=0;;n++) {
+ struct v4l2_output output;
+ GstV4l2TunerChannel *v4l2channel;
+ GstTunerChannel *channel;
+
+ output.index = n;
+ if (ioctl(v4l2element->video_fd, VIDIOC_ENUMOUTPUT,
+ &output) < 0) {
+ if (errno == EINVAL)
+ break; /* end of enumeration */
+ else {
+ gst_element_error(GST_ELEMENT(v4l2element),
+ "Failed to get no. %d in output enumeration for %s: %s",
+ n, v4l2element->device,
+ g_strerror(errno));
+ return FALSE;
+ }
+ }
+
+ v4l2channel = g_object_new(GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
+ channel = GST_TUNER_CHANNEL(v4l2channel);
+ channel->label = g_strdup(output.name);
+ channel->flags = GST_TUNER_CHANNEL_OUTPUT;
+ v4l2channel->index = n;
+ if (output.audioset) {
+ /* we take the first. We don't care for
+ * the others for now */
+ while (!(output.audioset &
+ (1<<v4l2channel->audio)))
+ v4l2channel->audio++;
+ channel->flags |= GST_TUNER_CHANNEL_AUDIO;
+ }
- v4l2element->output_names = g_list_append(v4l2element->output_names, outptr->name);
+ v4l2element->channels =
+ g_list_append(v4l2element->channels,
+ (gpointer) channel);
+ }
}
/* norms... */
for (n=0;;n++) {
- struct v4l2_standard standard, *stdptr;
+ struct v4l2_standard standard;
+ GstV4l2TunerNorm *v4l2norm;
+ GstTunerNorm *norm;
+
standard.index = n;
if (ioctl(v4l2element->video_fd, VIDIOC_ENUMSTD, &standard) < 0) {
if (errno == EINVAL)
@@ -130,21 +204,28 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
return FALSE;
}
}
- stdptr = g_malloc(sizeof(standard));
- memcpy(stdptr, &standard, sizeof(standard));
- v4l2element->norms = g_list_append(v4l2element->norms, stdptr);
- v4l2element->norm_names = g_list_append(v4l2element->norm_names, stdptr->name);
+ v4l2norm = g_object_new(GST_TYPE_V4L2_TUNER_NORM, NULL);
+ norm = GST_TUNER_NORM (v4l2norm);
+ norm->label = g_strdup(standard.name);
+ norm->fps = (gfloat) standard.frameperiod.denominator /
+ standard.frameperiod.numerator;
+ v4l2norm->index = standard.id;
+
+ v4l2element->norms = g_list_append(v4l2element->norms,
+ (gpointer) norm);
}
/* and lastly, controls+menus (if appropriate) */
for (n=V4L2_CID_BASE;;n++) {
- struct v4l2_queryctrl control, *ctrlptr;
- GList *menus = NULL;
- GParamSpec *spec = NULL;
+ struct v4l2_queryctrl control;
+ GstV4l2ColorBalanceChannel *v4l2channel;
+ GstColorBalanceChannel *channel;
+
/* hacky... */
if (n == V4L2_CID_LASTP1)
n = V4L2_CID_PRIVATE_BASE;
+
control.id = n;
if (ioctl(v4l2element->video_fd, VIDIOC_QUERYCTRL, &control) < 0) {
if (errno == EINVAL) {
@@ -161,9 +242,39 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
}
if (control.flags & V4L2_CTRL_FLAG_DISABLED)
continue;
- ctrlptr = g_malloc(sizeof(control));
- memcpy(ctrlptr, &control, sizeof(control));
- v4l2element->controls = g_list_append(v4l2element->controls, ctrlptr);
+
+ switch (n) {
+ case V4L2_CID_BRIGHTNESS:
+ case V4L2_CID_CONTRAST:
+ case V4L2_CID_SATURATION:
+ case V4L2_CID_HUE:
+ case V4L2_CID_BLACK_LEVEL:
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ case V4L2_CID_DO_WHITE_BALANCE:
+ case V4L2_CID_RED_BALANCE:
+ case V4L2_CID_BLUE_BALANCE:
+ case V4L2_CID_GAMMA:
+ case V4L2_CID_EXPOSURE:
+ case V4L2_CID_AUTOGAIN:
+ case V4L2_CID_GAIN:
+ /* we only handle these for now */
+ break;
+ default:
+ DEBUG("ControlID %s (%d) unhandled, FIXME",
+ control.name, n);
+ control.id++;
+ break;
+ }
+ if (n != control.id)
+ continue;
+
+ v4l2channel = g_object_new(GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL,
+ NULL);
+ channel = GST_COLOR_BALANCE_CHANNEL(v4l2channel);
+ channel->label = g_strdup(control.name);
+ v4l2channel->index = n;
+
+#if 0
if (control.type == V4L2_CTRL_TYPE_MENU) {
struct v4l2_querymenu menu, *mptr;
int i;
@@ -186,30 +297,25 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
}
}
v4l2element->menus = g_list_append(v4l2element->menus, menus);
+#endif
switch (control.type) {
case V4L2_CTRL_TYPE_INTEGER:
- spec = g_param_spec_int(ctrlptr->name, ctrlptr->name,
- ctrlptr->name, ctrlptr->minimum, ctrlptr->maximum,
- ctrlptr->default_value, G_PARAM_READWRITE);
+ channel->min_value = control.minimum;
+ channel->max_value = control.maximum;
break;
case V4L2_CTRL_TYPE_BOOLEAN:
- spec = g_param_spec_boolean(ctrlptr->name, ctrlptr->name,
- ctrlptr->name, ctrlptr->default_value,
- G_PARAM_READWRITE);
+ channel->min_value = FALSE;
+ channel->max_value = TRUE;
break;
- case V4L2_CTRL_TYPE_MENU:
- /* hacky... we abuse pointer for 'no value' */
- spec = g_param_spec_pointer(ctrlptr->name, ctrlptr->name,
- ctrlptr->name, G_PARAM_WRITABLE);
- break;
- case V4L2_CTRL_TYPE_BUTTON:
- /* help?!? */
- spec = NULL;
+ default:
+ channel->min_value =
+ channel->max_value = 0;
break;
}
- v4l2element->control_specs = g_list_append(v4l2element->control_specs, spec);
+ v4l2element->colors = g_list_append(v4l2element->colors,
+ (gpointer) channel);
}
return TRUE;
@@ -221,48 +327,17 @@ gst_v4l2_empty_lists (GstV4l2Element *v4l2element)
{
DEBUG("deleting enumerations");
- /* empty lists */
- while (g_list_length(v4l2element->inputs) > 0) {
- gpointer data = g_list_nth_data(v4l2element->inputs, 0);
- v4l2element->inputs = g_list_remove(v4l2element->inputs, data);
- g_free(data);
- }
- g_list_free(v4l2element->input_names);
- v4l2element->input_names = NULL;
- while (g_list_length(v4l2element->outputs) > 0) {
- gpointer data = g_list_nth_data(v4l2element->outputs, 0);
- v4l2element->outputs = g_list_remove(v4l2element->outputs, data);
- g_free(data);
- }
- g_list_free(v4l2element->output_names);
- v4l2element->output_names = NULL;
- while (g_list_length(v4l2element->norms) > 0) {
- gpointer data = g_list_nth_data(v4l2element->norms, 0);
- v4l2element->norms = g_list_remove(v4l2element->norms, data);
- g_free(data);
- }
- g_list_free(v4l2element->norm_names);
- v4l2element->norm_names = NULL;
- while (g_list_length(v4l2element->controls) > 0) {
- gpointer data = g_list_nth_data(v4l2element->controls, 0);
- v4l2element->controls = g_list_remove(v4l2element->controls, data);
- g_free(data);
- }
- v4l2element->menus = g_list_remove_all(v4l2element->menus, NULL);
- while (g_list_length(v4l2element->menus) > 0) {
- GList *items = (GList *) g_list_nth_data(v4l2element->menus, 0);
- v4l2element->inputs = g_list_remove(v4l2element->inputs, items);
- while (g_list_length(items) > 0) {
- gpointer data = g_list_nth_data(v4l2element->menus, 0);
- items = g_list_remove(items, data);
- g_free(data);
- }
- }
- while (g_list_length(v4l2element->control_specs) > 0) {
- gpointer data = g_list_nth_data(v4l2element->control_specs, 0);
- v4l2element->control_specs = g_list_remove(v4l2element->control_specs, data);
- g_param_spec_unref(G_PARAM_SPEC(data));
- }
+ g_list_foreach (v4l2element->channels, (GFunc) g_object_unref, NULL);
+ g_list_free (v4l2element->channels);
+ v4l2element->channels = NULL;
+
+ g_list_foreach (v4l2element->norms, (GFunc) g_object_unref, NULL);
+ g_list_free (v4l2element->norms);
+ v4l2element->norms = NULL;
+
+ g_list_foreach (v4l2element->colors, (GFunc) g_object_unref, NULL);
+ g_list_free (v4l2element->colors);
+ v4l2element->colors = NULL;
}
@@ -351,34 +426,19 @@ gst_v4l2_close (GstV4l2Element *v4l2element)
gboolean
gst_v4l2_get_norm (GstV4l2Element *v4l2element,
- gint *norm)
+ v4l2_std_id *norm)
{
- v4l2_std_id std_id;
- gint n;
-
DEBUG("getting norm");
GST_V4L2_CHECK_OPEN(v4l2element);
- if (ioctl(v4l2element->video_fd, VIDIOC_G_STD, &std_id) < 0) {
+ if (ioctl(v4l2element->video_fd, VIDIOC_G_STD, norm) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
"Failed to get the current norm for device %s: %s",
v4l2element->device, g_strerror(errno));
return FALSE;
}
- /* try to find out what norm number this actually is */
- for (n=0;n<g_list_length(v4l2element->norms);n++) {
- struct v4l2_standard *stdptr = (struct v4l2_standard *) g_list_nth_data(v4l2element->norms, n);
- if (stdptr->id == std_id) {
- *norm = n;
- return TRUE;
- }
- }
-
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to find norm '%llu' in our list of available norms for device %s",
- std_id, v4l2element->device);
- return FALSE;
+ return TRUE;
}
@@ -390,27 +450,16 @@ gst_v4l2_get_norm (GstV4l2Element *v4l2element,
gboolean
gst_v4l2_set_norm (GstV4l2Element *v4l2element,
- gint norm)
+ v4l2_std_id norm)
{
- struct v4l2_standard *standard;
-
- DEBUG("trying to set norm to %d", norm);
+ DEBUG("trying to set norm to %llx", norm);
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
- if (norm < 0 || norm >= g_list_length(v4l2element->norms)) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Invalid norm number %d (%d-%d)",
- norm, 0, g_list_length(v4l2element->norms));
- return FALSE;
- }
-
- standard = (struct v4l2_standard *) g_list_nth_data(v4l2element->norms, norm);
-
- if (ioctl(v4l2element->video_fd, VIDIOC_S_STD, &standard->id) < 0) {
+ if (ioctl(v4l2element->video_fd, VIDIOC_S_STD, &norm) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to set norm '%s' (%llu) for device %s: %s",
- standard->name, standard->id, v4l2element->device, g_strerror(errno));
+ "Failed to set norm 0x%llx for device %s: %s",
+ norm, v4l2element->device, g_strerror(errno));
return FALSE;
}
@@ -460,13 +509,6 @@ gst_v4l2_set_input (GstV4l2Element *v4l2element,
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
- if (input < 0 || input >= g_list_length(v4l2element->inputs)) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Invalid input number %d (%d-%d)",
- input, 0, g_list_length(v4l2element->inputs));
- return FALSE;
- }
-
if (ioctl(v4l2element->video_fd, VIDIOC_S_INPUT, &input) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
"Failed to set input %d on device %s: %s",
@@ -520,13 +562,6 @@ gst_v4l2_set_output (GstV4l2Element *v4l2element,
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
- if (output < 0 || output >= g_list_length(v4l2element->outputs)) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Invalid output number %d (%d-%d)",
- output, 0, g_list_length(v4l2element->outputs));
- return FALSE;
- }
-
if (ioctl(v4l2element->video_fd, VIDIOC_S_OUTPUT, &output) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
"Failed to set output %d on device %s: %s",
@@ -539,36 +574,6 @@ gst_v4l2_set_output (GstV4l2Element *v4l2element,
/******************************************************
- * gst_v4l2_has_tuner():
- * Check whether the device has a tuner
- * return value: TRUE if it has a tuner, else FALSE
- ******************************************************/
-
-gint
-gst_v4l2_has_tuner (GstV4l2Element *v4l2element,
- gint *tuner_num)
-{
- gint input_num;
- struct v4l2_input *input;
-
- DEBUG("detecting whether device has a tuner");
- GST_V4L2_CHECK_OPEN(v4l2element);
-
- if (!gst_v4l2_get_input(v4l2element, &input_num))
- return FALSE;
-
- input = (struct v4l2_input *) g_list_nth_data(v4l2element->inputs, input_num);
-
- if (input->type == V4L2_INPUT_TYPE_TUNER &&
- v4l2element->vcap.capabilities & V4L2_CAP_TUNER) {
- *tuner_num = input->tuner;
- return TRUE;
- }
- return FALSE;
-}
-
-
-/******************************************************
* gst_v4l2_get_frequency():
* get the current frequency
* return value: TRUE on success, FALSE on error
@@ -576,6 +581,7 @@ gst_v4l2_has_tuner (GstV4l2Element *v4l2element,
gboolean
gst_v4l2_get_frequency (GstV4l2Element *v4l2element,
+ gint tunernum,
gulong *frequency)
{
struct v4l2_frequency freq;
@@ -583,11 +589,7 @@ gst_v4l2_get_frequency (GstV4l2Element *v4l2element,
DEBUG("getting current tuner frequency");
GST_V4L2_CHECK_OPEN(v4l2element);
- if (!gst_v4l2_has_tuner(v4l2element, &freq.tuner))
- return FALSE;
-
- freq.type = 0;
-
+ freq.tuner = tunernum;
if (ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
"Failed to get current tuner frequency for device %s: %s",
@@ -609,6 +611,7 @@ gst_v4l2_get_frequency (GstV4l2Element *v4l2element,
gboolean
gst_v4l2_set_frequency (GstV4l2Element *v4l2element,
+ gint tunernum,
gulong frequency)
{
struct v4l2_frequency freq;
@@ -617,13 +620,12 @@ gst_v4l2_set_frequency (GstV4l2Element *v4l2element,
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
- if (!gst_v4l2_has_tuner(v4l2element, &freq.tuner))
- return FALSE;
-
+ freq.tuner = tunernum;
+ /* fill in type - ignore error */
+ ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq);
freq.frequency = frequency;
- freq.type = 0;
- if (ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq) < 0) {
+ if (ioctl(v4l2element->video_fd, VIDIOC_S_FREQUENCY, &freq) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
"Failed to set tuner frequency to %lu for device %s: %s",
frequency, v4l2element->device, g_strerror(errno));
@@ -642,6 +644,7 @@ gst_v4l2_set_frequency (GstV4l2Element *v4l2element,
gboolean
gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
+ gint tunernum,
gulong *signal_strength)
{
struct v4l2_tuner tuner;
@@ -649,6 +652,7 @@ gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
DEBUG("trying to get signal strength");
GST_V4L2_CHECK_OPEN(v4l2element);
+ tuner.index = tunernum;
if (ioctl(v4l2element->video_fd, VIDIOC_G_TUNER, &tuner) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
"Failed to get signal strength for device %s: %s",
@@ -663,86 +667,28 @@ gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
/******************************************************
- * gst_v4l2_has_audio():
- * Check whether the device has audio capabilities
- * return value: TRUE if it has a tuner, else FALSE
- ******************************************************/
-
-gboolean
-gst_v4l2_has_audio (GstV4l2Element *v4l2element)
-{
- gint input_num;
- struct v4l2_input *input;
-
- DEBUG("detecting whether device has audio");
- GST_V4L2_CHECK_OPEN(v4l2element);
-
- if (!gst_v4l2_get_input(v4l2element, &input_num))
- return FALSE;
-
- input = (struct v4l2_input *) g_list_nth_data(v4l2element->inputs, input_num);
-
- return (input->audioset != 0);
-}
-
-
-/******************************************************
- * gst_v4l2_control_name_to_num():
- * convert name to num (-1 if nothing)
- ******************************************************/
-
-static gint
-gst_v4l2_control_name_to_num (GstV4l2Element *v4l2element,
- const gchar *name)
-{
- GList *item;
-
- for (item = v4l2element->controls; item != NULL; item = item->next) {
- struct v4l2_queryctrl *ctrl = item->data;
- if (!strcmp(ctrl->name, name))
- return ctrl->id;
- }
-
- return -1;
-}
-
-
-/******************************************************
* gst_v4l2_get_attribute():
* try to get the value of one specific attribute
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
-gst_v4l2_get_attribute (GstElement *element,
- const gchar *name,
- int *value)
+gst_v4l2_get_attribute (GstV4l2Element *v4l2element,
+ int attribute_num,
+ int *value)
{
struct v4l2_control control;
- GstV4l2Element *v4l2element;
- gint attribute_num = -1;
- g_return_val_if_fail(element != NULL && name != NULL && value != NULL, FALSE);
- g_return_val_if_fail(GST_IS_V4L2ELEMENT(element), FALSE);
- v4l2element = GST_V4L2ELEMENT(element);
-
- DEBUG("getting value of attribute %d", attribute_num);
GST_V4L2_CHECK_OPEN(v4l2element);
- attribute_num = gst_v4l2_control_name_to_num(v4l2element, name);
-
- if (attribute_num < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Invalid control %s", name);
- return FALSE;
- }
+ DEBUG("getting value of attribute %d", attribute_num);
control.id = attribute_num;
if (ioctl(v4l2element->video_fd, VIDIOC_G_CTRL, &control) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get value for control %s (%d) on device %s: %s",
- name, attribute_num, v4l2element->device, g_strerror(errno));
+ "Failed to get value for control %d on device %s: %s",
+ attribute_num, v4l2element->device, g_strerror(errno));
return FALSE;
}
@@ -759,36 +705,23 @@ gst_v4l2_get_attribute (GstElement *element,
******************************************************/
gboolean
-gst_v4l2_set_attribute (GstElement *element,
- const gchar *name,
- const int value)
+gst_v4l2_set_attribute (GstV4l2Element *v4l2element,
+ int attribute_num,
+ const int value)
{
struct v4l2_control control;
- GstV4l2Element *v4l2element;
- gint attribute_num = -1;
-
- g_return_val_if_fail(element != NULL && name != NULL, FALSE);
- g_return_val_if_fail(GST_IS_V4L2ELEMENT(element), FALSE);
- v4l2element = GST_V4L2ELEMENT(element);
- DEBUG("setting value of attribute %d to %d", attribute_num, value);
GST_V4L2_CHECK_OPEN(v4l2element);
- attribute_num = gst_v4l2_control_name_to_num(v4l2element, name);
-
- if (attribute_num < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Invalid control %s", name);
- return FALSE;
- }
+ DEBUG("setting value of attribute %d to %d", attribute_num, value);
control.id = attribute_num;
control.value = value;
if (ioctl(v4l2element->video_fd, VIDIOC_S_CTRL, &control) < 0) {
gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to set value %d for control %s (%d) on device %s: %s",
- value, name, attribute_num, v4l2element->device, g_strerror(errno));
+ "Failed to set value %d for control %d on device %s: %s",
+ value, attribute_num, v4l2element->device, g_strerror(errno));
return FALSE;
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-07 16:23:19 +0000