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-rw-r--r--sys/v4l2/v4l2_calls.c220
1 files changed, 73 insertions, 147 deletions
diff --git a/sys/v4l2/v4l2_calls.c b/sys/v4l2/v4l2_calls.c
index 1d287d17..318508cf 100644
--- a/sys/v4l2/v4l2_calls.c
+++ b/sys/v4l2/v4l2_calls.c
@@ -83,113 +83,64 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
{
gint n;
-#if 0 /* output not handled by now */
- GstPadDirection dir = GST_PAD_UNKNOWN;
-#endif /* #if 0 - output not handled by now */
-
GST_DEBUG_OBJECT (v4l2object->element, "getting enumerations");
GST_V4L2_CHECK_OPEN (v4l2object);
-#if 0 /* output not handled by now */
- if (dir != GST_PAD_SINK) {
-#endif /* #if 0 - output not handled by now */
-
- GST_DEBUG_OBJECT (v4l2object->element, " inputs");
- /* and now, the inputs */
- for (n = 0;; n++) {
- struct v4l2_input input;
- GstV4l2TunerChannel *v4l2channel;
- GstTunerChannel *channel;
-
- input.index = n;
- if (ioctl (v4l2object->video_fd, VIDIOC_ENUMINPUT, &input) < 0) {
- if (errno == EINVAL)
- break; /* end of enumeration */
- else {
- GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS,
- ("Failed to get %d in input enumeration for %s",
- n, v4l2object->videodev), GST_ERROR_SYSTEM);
- return FALSE;
- }
- }
+ GST_DEBUG_OBJECT (v4l2object->element, " inputs");
+ /* and now, the inputs */
+ for (n = 0;; n++) {
+ struct v4l2_input input;
+ GstV4l2TunerChannel *v4l2channel;
+ GstTunerChannel *channel;
- v4l2channel = g_object_new (GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
- channel = GST_TUNER_CHANNEL (v4l2channel);
- channel->label = g_strdup ((const gchar *) 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 (v4l2object->video_fd, VIDIOC_G_TUNER, &vtun) < 0) {
- GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS,
- ("Failed to get tuner %d settings on %s",
- input.tuner, v4l2object->videodev), GST_ERROR_SYSTEM);
- g_object_unref (G_OBJECT (channel));
- return FALSE;
- }
- channel->freq_multiplicator =
- 62.5 * ((vtun.capability & V4L2_TUNER_CAP_LOW) ? 1 : 1000);
- channel->min_frequency = vtun.rangelow * channel->freq_multiplicator;
- channel->max_frequency = vtun.rangehigh * channel->freq_multiplicator;
- 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;
+ input.index = n;
+ if (ioctl (v4l2object->video_fd, VIDIOC_ENUMINPUT, &input) < 0) {
+ if (errno == EINVAL)
+ break; /* end of enumeration */
+ else {
+ GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS,
+ ("Failed to get %d in input enumeration for %s",
+ n, v4l2object->videodev), GST_ERROR_SYSTEM);
+ return FALSE;
}
-
- v4l2object->inputs =
- g_list_append (v4l2object->inputs, (gpointer) channel);
}
-#if 0 /* output not handled by now */
- } else {
- /* outputs */
- for (n = 0;; n++) {
- struct v4l2_output output;
- GstV4l2TunerChannel *v4l2channel;
- GstTunerChannel *channel;
-
- output.index = n;
- if (ioctl (v4l2object->video_fd, VIDIOC_ENUMOUTPUT, &output) < 0) {
- if (errno == EINVAL)
- break; /* end of enumeration */
- else {
- GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS,
- ("Failed to get %d in output enumeration for %s",
- n, v4l2object->videodev)
- , GST_ERROR_SYSTEM);
- return FALSE;
- }
- }
+ v4l2channel = g_object_new (GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
+ channel = GST_TUNER_CHANNEL (v4l2channel);
+ channel->label = g_strdup ((const gchar *) input.name);
+ channel->flags = GST_TUNER_CHANNEL_INPUT;
+ v4l2channel->index = n;
+ if (input.type == V4L2_INPUT_TYPE_TUNER) {
+ struct v4l2_tuner vtun;
- v4l2channel = g_object_new (GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
- channel = GST_TUNER_CHANNEL (v4l2channel);
- channel->label = g_strdup ((const gchar *) 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;
- }
+ v4l2channel->tuner = input.tuner;
+ channel->flags |= GST_TUNER_CHANNEL_FREQUENCY;
- v4l2object->inputs =
- g_list_append (v4l2object->inputs, (gpointer) channel);
+ vtun.index = input.tuner;
+ if (ioctl (v4l2object->video_fd, VIDIOC_G_TUNER, &vtun) < 0) {
+ GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS,
+ ("Failed to get tuner %d settings on %s",
+ input.tuner, v4l2object->videodev), GST_ERROR_SYSTEM);
+ g_object_unref (G_OBJECT (channel));
+ return FALSE;
+ }
+ channel->freq_multiplicator =
+ 62.5 * ((vtun.capability & V4L2_TUNER_CAP_LOW) ? 1 : 1000);
+ channel->min_frequency = vtun.rangelow * channel->freq_multiplicator;
+ channel->max_frequency = vtun.rangehigh * channel->freq_multiplicator;
+ 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;
+ }
+
+ v4l2object->inputs = g_list_append (v4l2object->inputs, (gpointer) channel);
}
-#endif /* #if 0 - output not handled by now */
GST_DEBUG_OBJECT (v4l2object->element, " norms");
/* norms... */
@@ -231,6 +182,9 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
if (n == V4L2_CID_LASTP1) {
GST_DEBUG_OBJECT (v4l2object->element, "checking private CIDs");
n = V4L2_CID_PRIVATE_BASE;
+ /* FIXME: We are still not handling private controls. We need a new GstInterface
+ to export those controls */
+ break;
}
control.id = n;
@@ -267,6 +221,21 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
case V4L2_CID_GAIN:
/* we only handle these for now (why?) */
break;
+ case V4L2_CID_HFLIP:
+ case V4L2_CID_VFLIP:
+ case V4L2_CID_HCENTER:
+ case V4L2_CID_VCENTER:
+ /* not handled here, handled by VideoOrientation interface */
+ control.id++;
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BALANCE:
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ case V4L2_CID_AUDIO_MUTE:
+ case V4L2_CID_AUDIO_LOUDNESS:
+ /* FIXME: We should implement GstMixer interface */
+ /* fall through */
default:
GST_DEBUG_OBJECT (v4l2object->element,
"ControlID %s (%x) unhandled, FIXME", control.name, n);
@@ -283,7 +252,8 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
channel->label = g_strdup ((const gchar *) control.name);
v4l2channel->id = n;
-#if 0 /* FIXME: will be be need just when handling private controls */
+#if 0 /* FIXME: it will be need just when handling private controls
+ (currently none of base controls are of this type) */
if (control.type == V4L2_CTRL_TYPE_MENU) {
struct v4l2_querymenu menu, *mptr;
int i;
@@ -319,9 +289,11 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
channel->max_value = TRUE;
break;
default:
- /* FIX ME we should find out how to handle V4L2_CTRL_TYPE_BUTTON */
+ /* FIXME we should find out how to handle V4L2_CTRL_TYPE_BUTTON.
+ BUTTON controls like V4L2_CID_DO_WHITE_BALANCE can just be set (1) or
+ unset (0), but can't be queried */
GST_DEBUG_OBJECT (v4l2object->element,
- "No range for ControlID %s (%x), type=%d",
+ "Control with non supported type %s (%x), type=%d",
control.name, n, control.type);
channel->min_value = channel->max_value = 0;
break;
@@ -497,9 +469,8 @@ gst_v4l2_get_norm (GstV4l2Object * v4l2object, v4l2_std_id * norm)
/* ERRORS */
std_failed:
{
- GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, SETTINGS,
- (_("Failed to get the current norm for device %s"),
- v4l2object->videodev), GST_ERROR_SYSTEM);
+ GST_DEBUG ("Failed to get the current norm for device %s",
+ v4l2object->videodev);
return FALSE;
}
}
@@ -765,48 +736,3 @@ input_failed:
return FALSE;
}
}
-
-
-#if 0 /* output not handled by now, Indeed it will be another element */
-
-gboolean
-gst_v4l2_get_output (GstV4l2Object * v4l2object, gint * output)
-{
- gint n;
-
- GST_DEBUG_OBJECT (v4l2object->element, "trying to get output");
- if (!GST_V4L2_IS_OPEN (v4l2object))
- return FALSE;
-
- if (ioctl (v4l2object->video_fd, VIDIOC_G_OUTPUT, &n) < 0) {
- GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, SETTINGS,
- (_("Failed to get current output on device %s"),
- v4l2object->videodev), GST_ERROR_SYSTEM);
- return FALSE;
- }
-
- *output = n;
-
- return TRUE;
-}
-
-gboolean
-gst_v4l2_set_output (GstV4l2Object * v4l2object, gint output)
-{
- GST_DEBUG_OBJECT (v4l2object->element, "trying to set output to %d", output);
- if (!GST_V4L2_IS_OPEN (v4l2object))
- return FALSE;
- if (!GST_V4L2_IS_ACTIVE (v4l2object))
- return FALSE;
-
- if (ioctl (v4l2object->video_fd, VIDIOC_S_OUTPUT, &output) < 0) {
- GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, SETTINGS,
- (_("Failed to set current output on device %s to %d"),
- v4l2object->videodev, output), GST_ERROR_SYSTEM);
- return FALSE;
- }
-
- return TRUE;
-}
-
-#endif /* #if 0 - output not handled by now , Indeed it will be another element */
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-08 23:22:05 +0000