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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
This commit is contained in:
parent
fd90de3113
commit
1a8a2ef6e4
11 changed files with 212 additions and 327 deletions
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@ -4,7 +4,7 @@ plugin_LTLIBRARIES = \
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libgstv4l2element.la \
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libgstv4l2src.la
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libgstv4l2element_la_SOURCES = gstv4l2element.c v4l2_calls.c v4l2-overlay_calls.c
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libgstv4l2element_la_SOURCES = gstv4l2element.c v4l2_calls.c v4l2-overlay_calls.c gstv4l2element-marshal.c
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libgstv4l2element_la_CFLAGS = $(GST_CFLAGS)
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libgstv4l2element_la_LIBADD =
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libgstv4l2element_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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@ -15,4 +15,32 @@ libgstv4l2src_la_LIBADD = libgstv4l2element.la
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libgstv4l2src_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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noinst_HEADERS = gstv4l2element.h v4l2_calls.h \
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gstv4l2src.h v4l2src_calls.h
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gstv4l2src.h v4l2src_calls.h gstv4l2element-marshal.h
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EXTRA_libgstv4l2element_la_SOURCES = \
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gstv4l2element-marshal.list
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BUILT_SOURCES = \
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gstv4l2element-marshal.c \
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gstv4l2element-marshal.h
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gstv4l2element-marshal.h: gstv4l2element-marshal.list
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glib-genmarshal --header --prefix=gstv4l2_cclosure_marshal $(srcdir)/gstv4l2element-marshal.list > gstv4l2element-marshal.h.tmp
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mv gstv4l2element-marshal.h.tmp gstv4l2element-marshal.h
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gstv4l2element-marshal.c: gstv4l2element-marshal.list
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echo "#include \"glib.h\"" > gstv4l2element-marshal.c.tmp
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echo "#include \"glib-object.h\"" >> gstv4l2element-marshal.c.tmp
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echo "#include \"gstv4l2element-marshal.h\"" >> gstv4l2element-marshal.c.tmp
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glib-genmarshal --body --prefix=gstv4l2_cclosure_marshal $(srcdir)/gstv4l2element-marshal.list >> gstv4l2element-marshal.c.tmp
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mv gstv4l2element-marshal.c.tmp gstv4l2element-marshal.c
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# Don't want the generated marshal files in the dist
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dist-hook:
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rm -f $(distdir)/gstv4l2element-marshal.c
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rm -f $(distdir)/gstv4l2element-marshal.h
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# Clean generated files
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distclean-local:
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rm -f $(top_builddir)/src/element/gstv4l2element-marshal.c
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rm -f $(top_builddir)/src/element/gstv4l2element-marshal.h
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3
sys/v4l2/gstv4l2element-marshal.list
Normal file
3
sys/v4l2/gstv4l2element-marshal.list
Normal file
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@ -0,0 +1,3 @@
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BOOLEAN:INT,INT,INT,INT,POINTER,INT
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BOOLEAN:STRING,INT
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BOOLEAN:STRING,POINTER
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@ -22,6 +22,7 @@
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#endif
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#include "v4l2_calls.h"
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#include "gstv4l2element-marshal.h"
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/* elementfactory details */
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static GstElementDetails gst_v4l2element_details = {
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@ -39,6 +40,9 @@ enum {
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/* FILL ME */
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SIGNAL_OPEN,
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SIGNAL_CLOSE,
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SIGNAL_SET_VIDEOWINDOW,
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SIGNAL_GET_ATTRIBUTE,
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SIGNAL_SET_ATTRIBUTE,
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LAST_SIGNAL
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};
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@ -54,15 +58,13 @@ enum {
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ARG_FREQUENCY,
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ARG_SIGNAL_STRENGTH,
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ARG_HAS_AUDIO,
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ARG_ATTRIBUTE,
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ARG_ATTRIBUTE_SETS,
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ARG_ATTRIBUTES,
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ARG_DEVICE,
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ARG_DEVICE_NAME,
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ARG_DEVICE_HAS_CAPTURE,
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ARG_DEVICE_HAS_OVERLAY,
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ARG_DEVICE_HAS_PLAYBACK,
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ARG_DISPLAY,
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ARG_VIDEOWINDOW,
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ARG_DO_OVERLAY,
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};
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@ -153,11 +155,8 @@ gst_v4l2element_class_init (GstV4l2ElementClass *klass)
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HAS_AUDIO,
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g_param_spec_boolean("has_audio","has_audio","has_audio",
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0,G_PARAM_READABLE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATTRIBUTE,
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g_param_spec_pointer("attribute","attribute","attribute",
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G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATTRIBUTE_SETS,
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g_param_spec_pointer("attribute_sets","attribute_sets","attribute_sets",
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATTRIBUTES,
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g_param_spec_pointer("attributes","attributes","attributes",
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G_PARAM_READABLE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE,
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@ -183,9 +182,37 @@ gst_v4l2element_class_init (GstV4l2ElementClass *klass)
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DO_OVERLAY,
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g_param_spec_boolean("do_overlay","do_overlay","do_overlay",
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0,G_PARAM_WRITABLE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VIDEOWINDOW,
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g_param_spec_pointer("videowindow","videowindow","videowindow",
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G_PARAM_WRITABLE));
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/* actions */
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gst_v4l2element_signals[SIGNAL_SET_VIDEOWINDOW] =
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g_signal_new ("set_videowindow",
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G_TYPE_FROM_CLASS(klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET(GstV4l2ElementClass, set_videowindow),
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NULL, NULL,
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gstv4l2_cclosure_marshal_BOOLEAN__INT_INT_INT_INT_POINTER_INT,
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G_TYPE_BOOLEAN, 6,
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G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT,
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G_TYPE_POINTER, G_TYPE_INT);
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klass->set_videowindow = gst_v4l2_set_window;
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gst_v4l2element_signals[SIGNAL_GET_ATTRIBUTE] =
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g_signal_new ("get_attribute",
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G_TYPE_FROM_CLASS(klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET(GstV4l2ElementClass, get_attribute),
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NULL, NULL,
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gstv4l2_cclosure_marshal_BOOLEAN__STRING_POINTER,
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G_TYPE_BOOLEAN, 2, G_TYPE_STRING, G_TYPE_POINTER);
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klass->get_attribute = gst_v4l2_get_attribute;
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gst_v4l2element_signals[SIGNAL_SET_ATTRIBUTE] =
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g_signal_new ("set_attribute",
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G_TYPE_FROM_CLASS(klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET(GstV4l2ElementClass, set_attribute),
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NULL, NULL,
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gstv4l2_cclosure_marshal_BOOLEAN__STRING_INT,
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G_TYPE_BOOLEAN, 2, G_TYPE_STRING, G_TYPE_INT);
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klass->set_attribute = gst_v4l2_set_attribute;
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/* signals */
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gst_v4l2element_signals[SIGNAL_OPEN] =
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@ -220,9 +247,14 @@ gst_v4l2element_init (GstV4l2Element *v4l2element)
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v4l2element->frequency = 0;
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v4l2element->controls = NULL;
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v4l2element->menus = NULL;
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v4l2element->control_specs = NULL;
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v4l2element->outputs = NULL;
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v4l2element->output_names = NULL;
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v4l2element->inputs = NULL;
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v4l2element->input_names = NULL;
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v4l2element->norms = NULL;
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v4l2element->norm_names = NULL;
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}
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@ -267,13 +299,6 @@ gst_v4l2element_set_property (GObject *object,
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return;
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}
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break;
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case ARG_ATTRIBUTE:
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if (GST_V4L2_IS_OPEN(v4l2element)) {
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gst_v4l2_set_attribute(v4l2element,
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((GstV4l2Attribute*)g_value_get_pointer(value))->index,
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((GstV4l2Attribute*)g_value_get_pointer(value))->value);
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}
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break;
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case ARG_DEVICE:
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if (!GST_V4L2_IS_OPEN(v4l2element)) {
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if (v4l2element->device)
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@ -285,15 +310,6 @@ gst_v4l2element_set_property (GObject *object,
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if (!gst_v4l2_set_display(v4l2element, g_value_get_string(value)))
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return;
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break;
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case ARG_VIDEOWINDOW:
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if (GST_V4L2_IS_OPEN(v4l2element)) {
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GByteArray *array = (GByteArray *) g_value_get_pointer(value);
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struct v4l2_clip *clips = (struct v4l2_clip *) array->data;
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gst_v4l2_set_window(v4l2element,
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clips->c.left, clips->c.top, clips->c.width, clips->c.height,
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&clips[1], array->len/sizeof(struct v4l2_clip)-1);
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}
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break;
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case ARG_DO_OVERLAY:
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if (GST_V4L2_IS_OPEN(v4l2element)) {
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if (!gst_v4l2_enable_overlay(v4l2element, g_value_get_boolean(value)))
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@ -316,7 +332,6 @@ gst_v4l2element_get_property (GObject *object,
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GstV4l2Element *v4l2element;
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gint temp_i = 0;
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gulong temp_ul = 0;
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GList *list = NULL;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_V4L2ELEMENT(object));
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@ -329,9 +344,7 @@ gst_v4l2element_get_property (GObject *object,
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g_value_set_int(value, temp_i);
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break;
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case ARG_CHANNEL_NAMES:
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if (GST_V4L2_IS_OPEN(v4l2element))
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list = gst_v4l2_get_input_names(v4l2element);
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g_value_set_pointer(value, list);
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g_value_set_pointer(value, v4l2element->input_names);
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break;
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case ARG_OUTPUT:
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if (GST_V4L2_IS_OPEN(v4l2element))
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@ -339,9 +352,7 @@ gst_v4l2element_get_property (GObject *object,
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g_value_set_int(value, temp_i);
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break;
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case ARG_OUTPUT_NAMES:
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if (GST_V4L2_IS_OPEN(v4l2element))
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list = gst_v4l2_get_output_names(v4l2element);
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g_value_set_pointer(value, list);
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g_value_set_pointer(value, v4l2element->output_names);
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break;
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case ARG_NORM:
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if (GST_V4L2_IS_OPEN(v4l2element))
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@ -349,9 +360,7 @@ gst_v4l2element_get_property (GObject *object,
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g_value_set_int(value, temp_i);
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break;
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case ARG_NORM_NAMES:
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if (GST_V4L2_IS_OPEN(v4l2element))
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list = gst_v4l2_get_norm_names(v4l2element);
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g_value_set_pointer(value, list);
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g_value_set_pointer(value, v4l2element->norm_names);
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break;
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case ARG_HAS_TUNER:
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if (GST_V4L2_IS_OPEN(v4l2element))
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@ -373,23 +382,15 @@ gst_v4l2element_get_property (GObject *object,
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temp_i = gst_v4l2_has_audio(v4l2element);
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g_value_set_boolean(value, temp_i>0?TRUE:FALSE);
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break;
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case ARG_ATTRIBUTE:
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if (GST_V4L2_IS_OPEN(v4l2element))
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gst_v4l2_get_attribute(v4l2element,
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((GstV4l2Attribute*)g_value_get_pointer(value))->index, &temp_i);
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((GstV4l2Attribute*)g_value_get_pointer(value))->value = temp_i;
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break;
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case ARG_ATTRIBUTE_SETS:
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if (GST_V4L2_IS_OPEN(v4l2element))
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list = gst_v4l2_get_attributes(v4l2element);
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g_value_set_pointer(value, list);
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case ARG_ATTRIBUTES:
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g_value_set_pointer(value, v4l2element->control_specs);
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break;
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case ARG_DEVICE:
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g_value_set_string(value, g_strdup(v4l2element->device));
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g_value_set_string(value, v4l2element->device);
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break;
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case ARG_DEVICE_NAME:
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if (GST_V4L2_IS_OPEN(v4l2element))
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g_value_set_string(value, g_strdup(v4l2element->vcap.card));
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g_value_set_string(value, v4l2element->vcap.card);
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break;
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case ARG_DEVICE_HAS_CAPTURE:
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if (GST_V4L2_IS_OPEN(v4l2element) &&
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@ -41,28 +41,6 @@
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typedef struct _GstV4l2Element GstV4l2Element;
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typedef struct _GstV4l2ElementClass GstV4l2ElementClass;
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typedef enum {
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GST_V4L2_ATTRIBUTE_VALUE_TYPE_INTEGER = V4L2_CTRL_TYPE_INTEGER,
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GST_V4L2_ATTRIBUTE_VALUE_TYPE_BOOLEAN = V4L2_CTRL_TYPE_BOOLEAN,
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GST_V4L2_ATTRIBUTE_VALUE_TYPE_MENU = V4L2_CTRL_TYPE_MENU,
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GST_V4L2_ATTRIBUTE_VALUE_TYPE_BUTTON = V4L2_CTRL_TYPE_BUTTON,
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} GstV4l2AttributeValueType;
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typedef enum {
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GST_V4L2_ATTRIBUTE_TYPE_VIDEO,
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GST_V4L2_ATTRIBUTE_TYPE_AUDIO,
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GST_V4L2_ATTRIBUTE_TYPE_OTHER,
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} GstV4l2AttributeType;
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typedef struct _GstV4l2Attribute {
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gint index;
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gchar *name;
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GstV4l2AttributeType type;
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GstV4l2AttributeValueType val_type;
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gint min, max, value;
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GList *list_items; /* in case of 'list' */
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} GstV4l2Attribute;
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struct _GstV4l2Element {
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GstElement element;
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@ -79,10 +57,10 @@ struct _GstV4l2Element {
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struct v4l2_capability vcap;
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/* the toys available to us */
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GList /*v4l2_input*/ *inputs;
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GList /*v4l2_output*/ *outputs;
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GList /*v4l2_enumstd*/ *norms;
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GList /*v4l2_queryctrl*/ *controls;
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GList /*v4l2_input*/ *inputs, *input_names;
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GList /*v4l2_output*/ *outputs, *output_names;
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GList /*v4l2_enumstd*/ *norms, *norm_names;
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GList /*v4l2_queryctrl*/ *controls, *control_specs;
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GList /*GList:v4l2_querymenu*/ *menus;
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/* caching values */
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@ -100,6 +78,21 @@ struct _GstV4l2ElementClass {
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const gchar *device);
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void (*close) (GstElement *element,
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const gchar *device);
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/* actions */
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gboolean (*set_videowindow) (GstElement *element,
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gint x_offset,
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gint y_offset,
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gint height,
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gint width,
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struct v4l2_clip *clips,
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gint num_clips);
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gboolean (*get_attribute) (GstElement *element,
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const gchar *attr_name,
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int *value);
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gboolean (*set_attribute) (GstElement *element,
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const gchar *attr_name,
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const int value);
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};
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@ -45,8 +45,6 @@ enum {
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ARG_HEIGHT,
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ARG_PALETTE,
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ARG_PALETTE_NAMES,
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ARG_FOURCC,
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ARG_FOURCC_LIST,
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ARG_NUMBUFS,
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ARG_BUFSIZE
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};
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@ -154,12 +152,6 @@ gst_v4l2src_class_init (GstV4l2SrcClass *klass)
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PALETTE_NAMES,
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g_param_spec_pointer("palette_name","palette_name","palette_name",
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G_PARAM_READABLE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FOURCC,
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g_param_spec_string("fourcc","fourcc","fourcc",
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NULL,G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FOURCC_LIST,
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g_param_spec_pointer("fourcc_list","fourcc_list","fourcc_list",
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G_PARAM_READABLE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUMBUFS,
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g_param_spec_int("num_buffers","num_buffers","num_buffers",
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@ -201,6 +193,7 @@ gst_v4l2src_init (GstV4l2Src *v4l2src)
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v4l2src->breq.count = 0;
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v4l2src->formats = NULL;
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v4l2src->format_list = NULL;
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}
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@ -742,19 +735,6 @@ gst_v4l2src_set_property (GObject *object,
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}
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break;
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case ARG_FOURCC:
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if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
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gint i;
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const gchar *formatstr = g_value_get_string(value);
|
||||
guint32 fourcc = GST_MAKE_FOURCC(formatstr[0],formatstr[1],formatstr[2],formatstr[3]);
|
||||
for (i=0;i<g_list_length(v4l2src->formats);i++) {
|
||||
struct v4l2_fmtdesc *fmt = (struct v4l2_fmtdesc *) g_list_nth_data(v4l2src->formats, i);
|
||||
if (fmt->pixelformat == fourcc)
|
||||
v4l2src->palette = i;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case ARG_NUMBUFS:
|
||||
if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
|
||||
v4l2src->breq.count = g_value_get_int(value);
|
||||
|
@ -793,18 +773,7 @@ gst_v4l2src_get_property (GObject *object,
|
|||
break;
|
||||
|
||||
case ARG_PALETTE_NAMES:
|
||||
g_value_set_pointer(value, gst_v4l2src_get_format_list(v4l2src));
|
||||
break;
|
||||
|
||||
case ARG_FOURCC: {
|
||||
struct v4l2_fmtdesc *fmt = g_list_nth_data(v4l2src->formats, v4l2src->palette);
|
||||
guint32 print_format = GUINT32_FROM_LE(fmt->pixelformat);
|
||||
gchar *print_format_str = (gchar *) &print_format;
|
||||
g_value_set_string(value, g_strndup(print_format_str, 4));
|
||||
break; }
|
||||
|
||||
case ARG_FOURCC_LIST:
|
||||
g_value_set_pointer(value, gst_v4l2src_get_fourcc_list(v4l2src));
|
||||
g_value_set_pointer(value, v4l2src->format_list);
|
||||
break;
|
||||
|
||||
case ARG_NUMBUFS:
|
||||
|
|
|
@ -45,7 +45,7 @@ struct _GstV4l2Src {
|
|||
GstPad *srcpad;
|
||||
|
||||
/* internal lists */
|
||||
GList /*v4l2_fmtdesc*/ *formats; /* list of available capture formats */
|
||||
GList /*v4l2_fmtdesc*/ *formats, *format_list; /* list of available capture formats */
|
||||
|
||||
/* buffer properties */
|
||||
struct v4l2_buffer bufsettings;
|
||||
|
|
|
@ -81,7 +81,7 @@ gst_v4l2_set_display (GstV4l2Element *v4l2element,
|
|||
******************************************************/
|
||||
|
||||
gboolean
|
||||
gst_v4l2_set_window (GstV4l2Element *v4l2element,
|
||||
gst_v4l2_set_window (GstElement *element,
|
||||
gint x,
|
||||
gint y,
|
||||
gint w,
|
||||
|
@ -90,6 +90,7 @@ gst_v4l2_set_window (GstV4l2Element *v4l2element,
|
|||
gint num_clips)
|
||||
{
|
||||
struct v4l2_format fmt;
|
||||
GstV4l2Element *v4l2element = GST_V4L2ELEMENT(element);
|
||||
|
||||
DEBUG("trying to set video window to %dx%d,%d,%d", x,y,w,h);
|
||||
GST_V4L2_CHECK_OVERLAY(v4l2element);
|
||||
|
|
|
@ -90,6 +90,8 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
|
|||
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 */
|
||||
|
@ -109,6 +111,8 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
|
|||
outptr = g_malloc(sizeof(output));
|
||||
memcpy(outptr, &output, sizeof(output));
|
||||
v4l2element->outputs = g_list_append(v4l2element->outputs, outptr);
|
||||
|
||||
v4l2element->output_names = g_list_append(v4l2element->output_names, outptr->name);
|
||||
}
|
||||
|
||||
/* norms... */
|
||||
|
@ -128,12 +132,15 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
|
|||
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);
|
||||
}
|
||||
|
||||
/* and lastly, controls+menus (if appropriate) */
|
||||
for (n=V4L2_CID_BASE;;n++) {
|
||||
struct v4l2_queryctrl control, *ctrlptr;
|
||||
GList *menus = NULL;
|
||||
GParamSpec *spec = NULL;
|
||||
/* hacky... */
|
||||
if (n == V4L2_CID_LASTP1)
|
||||
n = V4L2_CID_PRIVATE_BASE;
|
||||
|
@ -178,6 +185,30 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
|
|||
}
|
||||
}
|
||||
v4l2element->menus = g_list_append(v4l2element->menus, menus);
|
||||
|
||||
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);
|
||||
break;
|
||||
case V4L2_CTRL_TYPE_BOOLEAN:
|
||||
spec = g_param_spec_boolean(ctrlptr->name, ctrlptr->name,
|
||||
ctrlptr->name, ctrlptr->default_value,
|
||||
G_PARAM_READWRITE);
|
||||
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;
|
||||
break;
|
||||
}
|
||||
|
||||
v4l2element->control_specs = g_list_append(v4l2element->control_specs, spec);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
|
@ -195,16 +226,22 @@ gst_v4l2_empty_lists (GstV4l2Element *v4l2element)
|
|||
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);
|
||||
|
@ -220,6 +257,11 @@ gst_v4l2_empty_lists (GstV4l2Element *v4l2element)
|
|||
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));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
@ -375,29 +417,6 @@ gst_v4l2_set_norm (GstV4l2Element *v4l2element,
|
|||
}
|
||||
|
||||
|
||||
/******************************************************
|
||||
* 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_standard *standard = (struct v4l2_standard *) g_list_nth_data(v4l2element->norms, n);
|
||||
names = g_list_append(names, g_strdup(standard->name));
|
||||
}
|
||||
|
||||
return names;
|
||||
}
|
||||
|
||||
|
||||
/******************************************************
|
||||
* gst_v4l2_get_input()
|
||||
* Get the input of the current device
|
||||
|
@ -458,29 +477,6 @@ gst_v4l2_set_input (GstV4l2Element *v4l2element,
|
|||
}
|
||||
|
||||
|
||||
/******************************************************
|
||||
* 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
|
||||
|
@ -542,30 +538,7 @@ gst_v4l2_set_output (GstV4l2Element *v4l2element,
|
|||
|
||||
|
||||
/******************************************************
|
||||
* 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():
|
||||
* gst_v4l2_has_tuner():
|
||||
* Check whether the device has a tuner
|
||||
* return value: TRUE if it has a tuner, else FALSE
|
||||
******************************************************/
|
||||
|
@ -595,7 +568,7 @@ gst_v4l2_has_tuner (GstV4l2Element *v4l2element,
|
|||
|
||||
|
||||
/******************************************************
|
||||
* gst_v4l_get_frequency():
|
||||
* gst_v4l2_get_frequency():
|
||||
* get the current frequency
|
||||
* return value: TRUE on success, FALSE on error
|
||||
******************************************************/
|
||||
|
@ -628,7 +601,7 @@ gst_v4l2_get_frequency (GstV4l2Element *v4l2element,
|
|||
|
||||
|
||||
/******************************************************
|
||||
* gst_v4l_set_frequency():
|
||||
* gst_v4l2_set_frequency():
|
||||
* set frequency
|
||||
* return value: TRUE on success, FALSE on error
|
||||
******************************************************/
|
||||
|
@ -661,7 +634,7 @@ gst_v4l2_set_frequency (GstV4l2Element *v4l2element,
|
|||
|
||||
|
||||
/******************************************************
|
||||
* 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
|
||||
******************************************************/
|
||||
|
@ -689,7 +662,7 @@ gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
|
|||
|
||||
|
||||
/******************************************************
|
||||
* gst_v4l_has_audio():
|
||||
* gst_v4l2_has_audio():
|
||||
* Check whether the device has audio capabilities
|
||||
* return value: TRUE if it has a tuner, else FALSE
|
||||
******************************************************/
|
||||
|
@ -713,96 +686,53 @@ gst_v4l2_has_audio (GstV4l2Element *v4l2element)
|
|||
|
||||
|
||||
/******************************************************
|
||||
* gst_v4l_get_attributes():
|
||||
* get a list of attributes available on this device
|
||||
* return value: the list
|
||||
* gst_v4l2_control_name_to_num():
|
||||
* convert name to num (-1 if nothing)
|
||||
******************************************************/
|
||||
|
||||
GList *
|
||||
gst_v4l2_get_attributes (GstV4l2Element *v4l2element)
|
||||
static gint
|
||||
gst_v4l2_control_name_to_num (GstV4l2Element *v4l2element,
|
||||
const gchar *name)
|
||||
{
|
||||
gint i;
|
||||
GList *list = NULL;
|
||||
GList *item;
|
||||
|
||||
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;
|
||||
attribute->val_type = control->type;
|
||||
if (control->type == 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));
|
||||
}
|
||||
}
|
||||
switch (control->id) {
|
||||
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:
|
||||
case V4L2_CID_HFLIP:
|
||||
case V4L2_CID_VFLIP:
|
||||
case V4L2_CID_HCENTER:
|
||||
case V4L2_CID_VCENTER:
|
||||
attribute->type = GST_V4L2_ATTRIBUTE_TYPE_VIDEO;
|
||||
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:
|
||||
attribute->type = GST_V4L2_ATTRIBUTE_TYPE_AUDIO;
|
||||
break;
|
||||
default:
|
||||
attribute->type = GST_V4L2_ATTRIBUTE_TYPE_OTHER;
|
||||
break;
|
||||
}
|
||||
gst_v4l2_get_attribute(v4l2element, i, &attribute->value);
|
||||
attribute->min = control->minimum;
|
||||
attribute->max = control->maximum;
|
||||
for (item = v4l2element->controls; item != NULL; item = item->next) {
|
||||
struct v4l2_queryctrl *ctrl = item->data;
|
||||
if (!strcmp(ctrl->name, name))
|
||||
return ctrl->id;
|
||||
}
|
||||
|
||||
return list;
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
/******************************************************
|
||||
* 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)
|
||||
gst_v4l2_get_attribute (GstElement *element,
|
||||
const gchar *name,
|
||||
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);
|
||||
|
||||
if (attribute_num < 0 || attribute_num >= g_list_length(v4l2element->controls)) {
|
||||
attribute_num = gst_v4l2_control_name_to_num(v4l2element, name);
|
||||
|
||||
if (attribute_num < 0) {
|
||||
gst_element_error(GST_ELEMENT(v4l2element),
|
||||
"Invalid control ID %d", attribute_num);
|
||||
"Invalid control %s", name);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
@ -810,8 +740,8 @@ gst_v4l2_get_attribute (GstV4l2Element *v4l2element,
|
|||
|
||||
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, g_strerror(errno));
|
||||
"Failed to get value for control %s (%d) on device %s: %s",
|
||||
name, attribute_num, v4l2element->device, g_strerror(errno));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
@ -822,24 +752,32 @@ gst_v4l2_get_attribute (GstV4l2Element *v4l2element,
|
|||
|
||||
|
||||
/******************************************************
|
||||
* 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)
|
||||
gst_v4l2_set_attribute (GstElement *element,
|
||||
const gchar *name,
|
||||
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);
|
||||
|
||||
if (attribute_num < 0 || attribute_num >= g_list_length(v4l2element->controls)) {
|
||||
attribute_num = gst_v4l2_control_name_to_num(v4l2element, name);
|
||||
|
||||
if (attribute_num < 0) {
|
||||
gst_element_error(GST_ELEMENT(v4l2element),
|
||||
"Invalid control ID %d", attribute_num);
|
||||
"Invalid control %s", name);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
@ -848,8 +786,8 @@ gst_v4l2_set_attribute (GstV4l2Element *v4l2element,
|
|||
|
||||
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, g_strerror(errno));
|
||||
"Failed to set value %d for control %s (%d) on device %s: %s",
|
||||
value, name, attribute_num, v4l2element->device, g_strerror(errno));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
|
|
@ -89,17 +89,14 @@ gboolean gst_v4l2_get_norm (GstV4l2Element *v4l2element,
|
|||
gint *norm);
|
||||
gboolean gst_v4l2_set_norm (GstV4l2Element *v4l2element,
|
||||
gint norm);
|
||||
GList * gst_v4l2_get_norm_names (GstV4l2Element *v4l2element);
|
||||
gboolean gst_v4l2_get_input (GstV4l2Element *v4l2element,
|
||||
gint *input);
|
||||
gboolean gst_v4l2_set_input (GstV4l2Element *v4l2element,
|
||||
gint input);
|
||||
GList * gst_v4l2_get_input_names (GstV4l2Element *v4l2element);
|
||||
gboolean gst_v4l2_get_output (GstV4l2Element *v4l2element,
|
||||
gint *output);
|
||||
gboolean gst_v4l2_set_output (GstV4l2Element *v4l2element,
|
||||
gint output);
|
||||
GList * gst_v4l2_get_output_names (GstV4l2Element *v4l2element);
|
||||
|
||||
/* frequency control */
|
||||
gboolean gst_v4l2_has_tuner (GstV4l2Element *v4l2element,
|
||||
|
@ -113,18 +110,17 @@ gboolean gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
|
|||
|
||||
/* attribute control */
|
||||
gboolean gst_v4l2_has_audio (GstV4l2Element *v4l2element);
|
||||
GList * gst_v4l2_get_attributes (GstV4l2Element *v4l2element);
|
||||
gboolean gst_v4l2_get_attribute (GstV4l2Element *v4l2element,
|
||||
gint attribute_num,
|
||||
gint *value);
|
||||
gboolean gst_v4l2_set_attribute (GstV4l2Element *v4l2element,
|
||||
gint attribute_num,
|
||||
gint value);
|
||||
gboolean gst_v4l2_get_attribute (GstElement *element,
|
||||
const char *attribute,
|
||||
int *value);
|
||||
gboolean gst_v4l2_set_attribute (GstElement *element,
|
||||
const char *attribute,
|
||||
const int value);
|
||||
|
||||
/* overlay */
|
||||
gboolean gst_v4l2_set_display (GstV4l2Element *v4l2element,
|
||||
const gchar *display);
|
||||
gboolean gst_v4l2_set_window (GstV4l2Element *v4l2element,
|
||||
gboolean gst_v4l2_set_window (GstElement *element,
|
||||
gint x, gint y,
|
||||
gint w, gint h,
|
||||
struct v4l2_clip *clips,
|
||||
|
|
|
@ -72,6 +72,8 @@ gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src)
|
|||
fmtptr = g_malloc(sizeof(format));
|
||||
memcpy(fmtptr, &format, sizeof(format));
|
||||
v4l2src->formats = g_list_append(v4l2src->formats, fmtptr);
|
||||
|
||||
v4l2src->format_list = g_list_append(v4l2src->format_list, fmtptr->description);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
|
@ -92,6 +94,8 @@ gst_v4l2src_empty_format_list (GstV4l2Src *v4l2src)
|
|||
v4l2src->formats = g_list_remove(v4l2src->formats, data);
|
||||
g_free(data);
|
||||
}
|
||||
g_list_free(v4l2src->format_list);
|
||||
v4l2src->format_list = NULL;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
@ -399,49 +403,3 @@ gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src)
|
|||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
/******************************************************
|
||||
* gst_v4l2src_get_fourcc_list():
|
||||
* create a list of all available fourccs
|
||||
* return value: the list
|
||||
******************************************************/
|
||||
|
||||
GList *
|
||||
gst_v4l2src_get_fourcc_list (GstV4l2Src *v4l2src)
|
||||
{
|
||||
GList *list = NULL;
|
||||
gint n;
|
||||
|
||||
for (n=0;n<g_list_length(v4l2src->formats);n++) {
|
||||
struct v4l2_fmtdesc *fmt = (struct v4l2_fmtdesc *) g_list_nth_data(v4l2src->formats, n);
|
||||
guint32 print_format = GUINT32_FROM_LE(fmt->pixelformat);
|
||||
gchar *print_format_str = (gchar *) &print_format;
|
||||
|
||||
list = g_list_append(list, g_strndup(print_format_str, 4));
|
||||
}
|
||||
|
||||
return list;
|
||||
}
|
||||
|
||||
|
||||
/******************************************************
|
||||
* gst_v4l2src_get_format_list():
|
||||
* create a list of all available capture formats
|
||||
* return value: the list
|
||||
******************************************************/
|
||||
|
||||
GList *
|
||||
gst_v4l2src_get_format_list (GstV4l2Src *v4l2src)
|
||||
{
|
||||
GList *list = NULL;
|
||||
gint n;
|
||||
|
||||
for (n=0;n<g_list_length(v4l2src->formats);n++) {
|
||||
struct v4l2_fmtdesc *fmt = (struct v4l2_fmtdesc *) g_list_nth_data(v4l2src->formats, n);
|
||||
|
||||
list = g_list_append(list, g_strdup(fmt->description));
|
||||
}
|
||||
|
||||
return list;
|
||||
}
|
||||
|
|
|
@ -40,8 +40,6 @@ gboolean gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src);
|
|||
|
||||
gboolean gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src);
|
||||
gboolean gst_v4l2src_empty_format_list (GstV4l2Src *v4l2src);
|
||||
GList * gst_v4l2src_get_fourcc_list (GstV4l2Src *v4l2src);
|
||||
GList * gst_v4l2src_get_format_list (GstV4l2Src *v4l2src);
|
||||
|
||||
|
||||
#endif /* __V4L2_SRC_CALLS_H__ */
|
||||
|
|
Loading…
Reference in a new issue