#include <sys/mman.h>
#include <string.h>
#include <errno.h>
+#include <unistd.h>
#include "v4l2_calls.h"
+#include "gstv4l2tuner.h"
+#include "gstv4l2xoverlay.h"
+#include "gstv4l2colorbalance.h"
+
+#include "gstv4l2src.h"
#define DEBUG(format, args...) \
- GST_DEBUG_ELEMENT(GST_CAT_PLUGIN_INFO, \
+ GST_DEBUG_OBJECT (\
GST_ELEMENT(v4l2element), \
"V4L2: " format, ##args)
GST_V4L2_CHECK_OPEN(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_QUERYCAP, &(v4l2element->vcap)) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Error getting %s capabilities: %s",
- v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Error getting %s capabilities: %s",
+ v4l2element->device, g_strerror(errno)));
return FALSE;
}
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);
- /* create enumeration lists - let's start with format enumeration */
- for (n=0;;n++) {
- struct v4l2_fmtdesc format, *fmtptr;
- format.index = n;
- if (ioctl(v4l2element->video_fd, VIDIOC_ENUM_PIXFMT, &format) < 0) {
- if (errno == EINVAL)
- break; /* end of enumeration */
- else {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get no. %d in pixelformat enumeration for %s: %s",
- n, v4l2element->device, sys_errlist[errno]);
- return FALSE;
- }
- }
- fmtptr = g_malloc(sizeof(format));
- memcpy(fmtptr, &format, sizeof(format));
- v4l2element->formats = g_list_append(v4l2element->formats, fmtptr);
- }
+ /* 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, sys_errlist[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 (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get %d in input 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 (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("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);
}
- inpptr = g_malloc(sizeof(input));
- memcpy(inpptr, &input, sizeof(input));
- v4l2element->inputs = g_list_append(v4l2element->inputs, inpptr);
- }
+ } 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 (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get %d in output enumeration for %s: %s",
+ n, v4l2element->device,
+ g_strerror (errno)));
+ return FALSE;
+ }
+ }
- /* 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, sys_errlist[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->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);
}
/* norms... */
for (n=0;;n++) {
- struct v4l2_enumstd 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)
break; /* end of enumeration */
else {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get no. %d in norm enumeration for %s: %s",
- n, v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get %d in norm enumeration for %s: %s",
+ n, v4l2element->device,
+ g_strerror (errno)));
return FALSE;
}
}
- stdptr = g_malloc(sizeof(standard));
- memcpy(stdptr, &standard, sizeof(standard));
- v4l2element->norms = g_list_append(v4l2element->norms, stdptr);
+
+ 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=0;;n++) {
- struct v4l2_queryctrl control, *ctrlptr;
- GList *menus = NULL;
+ for (n=V4L2_CID_BASE;;n++) {
+ 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)
- break; /* end of enumeration */
- else {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get no. %d in control enumeration for %s: %s",
- n, v4l2element->device, sys_errlist[errno]);
+ if (errno == EINVAL) {
+ if (n < V4L2_CID_PRIVATE_BASE)
+ continue;
+ else
+ break;
+ } else {
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get %d in control enumeration for %s: %s",
+ n, v4l2element->device,
+ g_strerror (errno)));
return FALSE;
}
}
- ctrlptr = g_malloc(sizeof(control));
- memcpy(ctrlptr, &control, sizeof(control));
- v4l2element->controls = g_list_append(v4l2element->controls, ctrlptr);
+ if (control.flags & V4L2_CTRL_FLAG_DISABLED)
+ continue;
+
+ 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;
if (errno == EINVAL)
break; /* end of enumeration */
else {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get no. %d in menu %d enumeration for %s: %s",
- i, n, v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get %d in menu enumeration for %s: %s",
+ n, v4l2element->device,
+ g_strerror (errno)));
return FALSE;
}
}
}
}
v4l2element->menus = g_list_append(v4l2element->menus, menus);
+#endif
+
+ switch (control.type) {
+ case V4L2_CTRL_TYPE_INTEGER:
+ channel->min_value = control.minimum;
+ channel->max_value = control.maximum;
+ break;
+ case V4L2_CTRL_TYPE_BOOLEAN:
+ channel->min_value = FALSE;
+ channel->max_value = TRUE;
+ break;
+ default:
+ channel->min_value =
+ channel->max_value = 0;
+ break;
+ }
+
+ v4l2element->colors = g_list_append(v4l2element->colors,
+ (gpointer) channel);
}
return TRUE;
{
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);
- }
- 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);
- }
- 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);
- }
- while (g_list_length(v4l2element->formats) > 0) {
- gpointer data = g_list_nth_data(v4l2element->formats, 0);
- v4l2element->formats = g_list_remove(v4l2element->formats, data);
- g_free(data);
- }
- 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);
- }
- }
+ 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;
+}
+
+/* FIXME: move this stuff to gstv4l2tuner.c? */
+
+static void
+gst_v4l2_set_defaults (GstV4l2Element *v4l2element)
+{
+ GstTunerNorm *norm = NULL;
+ GstTunerChannel *channel = NULL;
+ GstTuner *tuner = GST_TUNER (v4l2element);
+
+ if (v4l2element->norm)
+ norm = gst_tuner_find_norm_by_name (tuner, v4l2element->norm);
+ if (norm) {
+ gst_tuner_set_norm (tuner, norm);
+ } else {
+ norm = GST_TUNER_NORM (gst_tuner_get_norm (GST_TUNER (v4l2element)));
+ v4l2element->norm = g_strdup (norm->label);
+ gst_tuner_norm_changed (tuner, norm);
+ g_object_notify (G_OBJECT (v4l2element), "norm");
+ }
+
+ if (v4l2element->channel)
+ channel = gst_tuner_find_channel_by_name (tuner, v4l2element->channel);
+ if (channel) {
+ gst_tuner_set_channel (tuner, channel);
+ } else {
+ channel = GST_TUNER_CHANNEL (gst_tuner_get_channel (GST_TUNER (v4l2element)));
+ v4l2element->channel = g_strdup (channel->label);
+ gst_tuner_channel_changed (tuner, channel);
+ g_object_notify (G_OBJECT (v4l2element), "channel");
+ }
+ if (v4l2element->frequency != 0) {
+ gst_tuner_set_frequency (tuner, channel, v4l2element->frequency);
+ } else {
+ v4l2element->frequency = gst_tuner_get_frequency (tuner, channel);
+ if (v4l2element->frequency == 0) {
+ /* guess */
+ gst_tuner_set_frequency (tuner, channel, 1000);
+ } else {
+ g_object_notify (G_OBJECT (v4l2element), "frequency");
+ }
+ }
}
/* open the device */
v4l2element->video_fd = open(v4l2element->device, O_RDWR);
if (!GST_V4L2_IS_OPEN(v4l2element)) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to open device %s: %s",
- v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, OPEN_READ_WRITE,
+ (_("Could not open device \"%s\" for reading and writing."), v4l2element->device),
+ GST_ERROR_SYSTEM);
goto error;
}
goto error;
}
- /* and get the video window */
- if (GST_V4L2_IS_OVERLAY(v4l2element)) {
- if (ioctl(v4l2element->video_fd, VIDIOC_G_WIN, &(v4l2element->vwin)) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get video window properties of %s: %s",
- v4l2element->device, sys_errlist[errno]);
- goto error;
- }
+ /* do we need to be a capture device? */
+ if (GST_IS_V4L2SRC(v4l2element) &&
+ !(v4l2element->vcap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, NOT_FOUND,
+ (_("Device \"%s\" is not a capture device."), v4l2element->device),
+ ("Capabilities: 0x%x", v4l2element->vcap.capabilities));
+ goto error;
}
/* create enumerations */
if (!gst_v4l2_fill_lists(v4l2element))
goto error;
- gst_info("Opened device '%s' (%s) successfully\n",
- v4l2element->vcap.name, v4l2element->device);
+ /* set defaults */
+ gst_v4l2_set_defaults (v4l2element);
+
+ GST_INFO_OBJECT (v4l2element, "Opened device '%s' (%s) successfully\n",
+ v4l2element->vcap.card, v4l2element->device);
return TRUE;
gboolean
gst_v4l2_get_norm (GstV4l2Element *v4l2element,
- gint *norm)
+ v4l2_std_id *norm)
{
- struct v4l2_standard standard;
- gint n;
-
DEBUG("getting norm");
GST_V4L2_CHECK_OPEN(v4l2element);
- if (ioctl(v4l2element->video_fd, VIDIOC_G_STD, &standard) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get the current norm for device %s: %s",
- v4l2element->device, sys_errlist[errno]);
+ if (ioctl(v4l2element->video_fd, VIDIOC_G_STD, norm) < 0) {
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("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_enumstd *stdptr = (struct v4l2_enumstd *) g_list_nth_data(v4l2element->norms, n);
- if (!strcmp(stdptr->std.name, standard.name)) {
- *norm = n;
- return TRUE;
- }
- }
-
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to find norm '%s' in our list of available norms for device %s",
- standard.name, v4l2element->device);
- return FALSE;
+ return TRUE;
}
gboolean
gst_v4l2_set_norm (GstV4l2Element *v4l2element,
- gint norm)
+ v4l2_std_id norm)
{
- struct v4l2_enumstd *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_enumstd *) g_list_nth_data(v4l2element->norms, norm);
-
- if (ioctl(v4l2element->video_fd, VIDIOC_S_STD, &standard->std) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to set norm '%s' (%d) for device %s: %s",
- standard->std.name, norm, v4l2element->device, sys_errlist[errno]);
+ if (ioctl(v4l2element->video_fd, VIDIOC_S_STD, &norm) < 0) {
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to set norm 0x%llx for device %s: %s",
+ norm, v4l2element->device, g_strerror(errno)));
return FALSE;
}
/******************************************************
- * gst_v4l2_get_norm_names()
- * Get the list of available norms
- * return value: the list
- ******************************************************/
-
-GList *
-gst_v4l2_get_norm_names (GstV4l2Element *v4l2element)
-{
- GList *names = NULL;
- gint n;
-
- DEBUG("getting a list of norm names");
-
- for (n=0;n<g_list_length(v4l2element->norms);n++) {
- struct v4l2_enumstd *standard = (struct v4l2_enumstd *) g_list_nth_data(v4l2element->norms, n);
- names = g_list_append(names, g_strdup(standard->std.name));
- }
-
- return names;
-}
-
-
-/******************************************************
* gst_v4l2_get_input()
* Get the input of the current device
* return value: TRUE on success, FALSE on error
GST_V4L2_CHECK_OPEN(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_G_INPUT, &n) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get current input on device %s: %s",
- v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get current input on device %s: %s",
+ v4l2element->device, g_strerror(errno)));
return FALSE;
}
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",
- input, v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to set input %d on device %s: %s",
+ input, v4l2element->device, g_strerror(errno)));
return FALSE;
}
/******************************************************
- * gst_v4l2_get_input_names()
- * Get the list of available input channels
- * return value: the list
- ******************************************************/
-
-GList *
-gst_v4l2_get_input_names (GstV4l2Element *v4l2element)
-{
- GList *names = NULL;
- gint n;
-
- DEBUG("getting a list of input names");
-
- for (n=0;n<g_list_length(v4l2element->inputs);n++) {
- struct v4l2_input *input = (struct v4l2_input *) g_list_nth_data(v4l2element->inputs, n);
- names = g_list_append(names, g_strdup(input->name));
- }
-
- return names;
-}
-
-
-/******************************************************
* gst_v4l2_get_output()
* Get the output of the current device
* return value: TRUE on success, FALSE on error
GST_V4L2_CHECK_OPEN(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_G_OUTPUT, &n) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get current output on device %s: %s",
- v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get current output on device %s: %s",
+ v4l2element->device, g_strerror(errno)));
return FALSE;
}
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",
- output, v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to set output %d on device %s: %s",
+ output, v4l2element->device, g_strerror(errno)));
return FALSE;
}
/******************************************************
- * gst_v4l2_get_output_names()
- * Get the list of available output channels
- * return value: the list, or NULL on error
- ******************************************************/
-
-GList *
-gst_v4l2_get_output_names (GstV4l2Element *v4l2element)
-{
- GList *names = NULL;
- gint n;
-
- DEBUG("getting a list of output names");
-
- for (n=0;n<g_list_length(v4l2element->outputs);n++) {
- struct v4l2_output *output = (struct v4l2_output *) g_list_nth_data(v4l2element->outputs, n);
- names = g_list_append(names, g_strdup(output->name));
- }
-
- return names;
-}
-
-
-/******************************************************
- * gst_v4l_has_tuner():
- * Check whether the device has a tuner
- * return value: TRUE if it has a tuner, else FALSE
- ******************************************************/
-
-gboolean
-gst_v4l2_has_tuner (GstV4l2Element *v4l2element)
-{
- 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);
-
- return (input->type == V4L2_INPUT_TYPE_TUNER &&
- v4l2element->vcap.flags & V4L2_FLAG_TUNER);
-}
-
-
-/******************************************************
- * gst_v4l_get_frequency():
+ * gst_v4l2_get_frequency():
* get the current frequency
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_get_frequency (GstV4l2Element *v4l2element,
+ gint tunernum,
gulong *frequency)
{
- gint n;
+ struct v4l2_frequency freq;
DEBUG("getting current tuner frequency");
GST_V4L2_CHECK_OPEN(v4l2element);
- if (!gst_v4l2_has_tuner(v4l2element))
- return FALSE;
-
- if (ioctl(v4l2element->video_fd, VIDIOC_G_FREQ, &n) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to get current tuner frequency for device %s: %s",
- v4l2element->device, sys_errlist[errno]);
+ freq.tuner = tunernum;
+ if (ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq) < 0) {
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get current tuner frequency for device %s: %s",
+ v4l2element->device, g_strerror(errno)));
return FALSE;
}
- *frequency = n;
+ *frequency = freq.frequency;
return TRUE;
}
/******************************************************
- * gst_v4l_set_frequency():
+ * gst_v4l2_set_frequency():
* set frequency
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_set_frequency (GstV4l2Element *v4l2element,
+ gint tunernum,
gulong frequency)
{
- gint n = frequency;
+ struct v4l2_frequency freq;
DEBUG("setting current tuner frequency to %lu", frequency);
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
- if (!gst_v4l2_has_tuner(v4l2element))
- return FALSE;
+ freq.tuner = tunernum;
+ /* fill in type - ignore error */
+ ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq);
+ freq.frequency = frequency;
- if (ioctl(v4l2element->video_fd, VIDIOC_G_FREQ, &n) < 0) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Failed to set tuner frequency to %lu for device %s: %s",
- frequency, v4l2element->device, sys_errlist[errno]);
+ if (ioctl(v4l2element->video_fd, VIDIOC_S_FREQUENCY, &freq) < 0) {
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to set tuner frequency to %lu for device %s: %s",
+ frequency, v4l2element->device, g_strerror(errno)));
return FALSE;
}
/******************************************************
- * gst_v4l_signal_strength():
+ * gst_v4l2_signal_strength():
* get the strength of the signal on the current input
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
+ gint tunernum,
gulong *signal_strength)
{
struct v4l2_tuner tuner;
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 set signal strength for device %s: %s",
- v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get signal strength for device %s: %s",
+ v4l2element->device, g_strerror(errno)));
return FALSE;
}
/******************************************************
- * gst_v4l_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->capability & V4L2_INPUT_CAP_AUDIO);
-}
-
-
-/******************************************************
- * gst_v4l_get_attributes():
- * get a list of attributes available on this device
- * return value: the list
- ******************************************************/
-
-GList *
-gst_v4l2_get_attributes (GstV4l2Element *v4l2element)
-{
- gint i;
- GList *list = NULL;
-
- DEBUG("getting a list of available attributes");
-
- for (i=0;i<g_list_length(v4l2element->controls);i++) {
- struct v4l2_queryctrl *control = (struct v4l2_queryctrl *) g_list_nth_data(v4l2element->controls, i);
- GstV4l2Attribute* attribute = g_malloc(sizeof(GstV4l2Attribute));
- attribute->name = g_strdup(control->name);
- attribute->index = i;
- attribute->list_items = NULL;
- switch (control->type) {
- case V4L2_CTRL_TYPE_INTEGER:
- attribute->val_type = GST_V4L2_ATTRIBUTE_VALUE_TYPE_INT;
- break;
- case V4L2_CTRL_TYPE_BOOLEAN:
- attribute->val_type = GST_V4L2_ATTRIBUTE_VALUE_TYPE_BOOLEAN;
- break;
- case V4L2_CTRL_TYPE_MENU: {
- /* list items */
- gint n;
- GList *menus = (GList *) g_list_nth_data(v4l2element->menus, i);
- for (n=0;n<g_list_length(menus);n++) {
- struct v4l2_querymenu *menu = g_list_nth_data(menus, n);
- attribute->list_items = g_list_append(attribute->list_items, g_strdup(menu->name));
- }
- attribute->val_type = GST_V4L2_ATTRIBUTE_VALUE_TYPE_LIST;
- break; }
- case V4L2_CTRL_TYPE_BUTTON:
- attribute->val_type = GST_V4L2_ATTRIBUTE_VALUE_TYPE_BUTTON;
- break;
- }
- switch (control->category) {
- case V4L2_CTRL_CAT_VIDEO:
- attribute->type = GST_V4L2_ATTRIBUTE_TYPE_VIDEO;
- break;
- case V4L2_CTRL_CAT_AUDIO:
- attribute->type = GST_V4L2_ATTRIBUTE_TYPE_AUDIO;
- break;
- case V4L2_CTRL_CAT_EFFECT:
- attribute->type = GST_V4L2_ATTRIBUTE_TYPE_EFFECT;
- break;
- }
- gst_v4l2_get_attribute(v4l2element, i, &attribute->value);
- attribute->min = control->minimum;
- attribute->max = control->maximum;
- }
-
- return list;
-}
-
-
-/******************************************************
- * gst_v4l_get_attribute():
+ * 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 (GstV4l2Element *v4l2element,
- gint attribute_num,
- gint *value)
+ int attribute_num,
+ int *value)
{
struct v4l2_control control;
- DEBUG("getting value of attribute %d", attribute_num);
GST_V4L2_CHECK_OPEN(v4l2element);
- if (attribute_num < 0 || attribute_num >= g_list_length(v4l2element->controls)) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Invalid control ID %d", attribute_num);
- 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 %d on device %s: %s",
- attribute_num, v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to get value for control %d on device %s: %s",
+ attribute_num, v4l2element->device, g_strerror(errno)));
return FALSE;
}
/******************************************************
- * gst_v4l_set_attribute():
+ * gst_v4l2_set_attribute():
* try to set the value of one specific attribute
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_set_attribute (GstV4l2Element *v4l2element,
- gint attribute_num,
- gint value)
+ int attribute_num,
+ const int value)
{
struct v4l2_control control;
- DEBUG("setting value of attribute %d to %d", attribute_num, value);
GST_V4L2_CHECK_OPEN(v4l2element);
- if (attribute_num < 0 || attribute_num >= g_list_length(v4l2element->controls)) {
- gst_element_error(GST_ELEMENT(v4l2element),
- "Invalid control ID %d", attribute_num);
- 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 %d on device %s: %s",
- value, attribute_num, v4l2element->device, sys_errlist[errno]);
+ GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL),
+ ("Failed to set value %d for control %d on device %s: %s",
+ value, attribute_num, v4l2element->device, g_strerror(errno)));
return FALSE;
}
projects / platform / upstream / gst-plugins-good.git / blobdiff