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Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src

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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:
Ronald S. Bultje 2003-03-02 21:58:52 +00:00
parent fd90de3113
commit 1a8a2ef6e4
11 changed files with 212 additions and 327 deletions
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32
sys/v4l2/Makefile.am
View file

@ -4,7 +4,7 @@ plugin_LTLIBRARIES = \
libgstv4l2element.la \ libgstv4l2element.la \
libgstv4l2src.la libgstv4l2src.la
libgstv4l2element_la_SOURCES = gstv4l2element.c v4l2_calls.c v4l2-overlay_calls.c libgstv4l2element_la_SOURCES = gstv4l2element.c v4l2_calls.c v4l2-overlay_calls.c gstv4l2element-marshal.c
libgstv4l2element_la_CFLAGS = $(GST_CFLAGS) libgstv4l2element_la_CFLAGS = $(GST_CFLAGS)
libgstv4l2element_la_LIBADD = libgstv4l2element_la_LIBADD =
libgstv4l2element_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) libgstv4l2element_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
@ -15,4 +15,32 @@ libgstv4l2src_la_LIBADD = libgstv4l2element.la
libgstv4l2src_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) libgstv4l2src_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstv4l2element.h v4l2_calls.h \ noinst_HEADERS = gstv4l2element.h v4l2_calls.h \
gstv4l2src.h v4l2src_calls.h gstv4l2src.h v4l2src_calls.h gstv4l2element-marshal.h
EXTRA_libgstv4l2element_la_SOURCES = \
gstv4l2element-marshal.list
BUILT_SOURCES = \
gstv4l2element-marshal.c \
gstv4l2element-marshal.h
gstv4l2element-marshal.h: gstv4l2element-marshal.list
glib-genmarshal --header --prefix=gstv4l2_cclosure_marshal $(srcdir)/gstv4l2element-marshal.list > gstv4l2element-marshal.h.tmp
mv gstv4l2element-marshal.h.tmp gstv4l2element-marshal.h
gstv4l2element-marshal.c: gstv4l2element-marshal.list
echo "#include \"glib.h\"" > gstv4l2element-marshal.c.tmp
echo "#include \"glib-object.h\"" >> gstv4l2element-marshal.c.tmp
echo "#include \"gstv4l2element-marshal.h\"" >> gstv4l2element-marshal.c.tmp
glib-genmarshal --body --prefix=gstv4l2_cclosure_marshal $(srcdir)/gstv4l2element-marshal.list >> gstv4l2element-marshal.c.tmp
mv gstv4l2element-marshal.c.tmp gstv4l2element-marshal.c
# Don't want the generated marshal files in the dist
dist-hook:
rm -f $(distdir)/gstv4l2element-marshal.c
rm -f $(distdir)/gstv4l2element-marshal.h
# Clean generated files
distclean-local:
rm -f $(top_builddir)/src/element/gstv4l2element-marshal.c
rm -f $(top_builddir)/src/element/gstv4l2element-marshal.h

3
sys/v4l2/gstv4l2element-marshal.list Normal file
View file

@ -0,0 +1,3 @@
BOOLEAN:INT,INT,INT,INT,POINTER,INT
BOOLEAN:STRING,INT
BOOLEAN:STRING,POINTER

99
sys/v4l2/gstv4l2element.c
View file

@ -22,6 +22,7 @@
#endif #endif
#include "v4l2_calls.h" #include "v4l2_calls.h"
#include "gstv4l2element-marshal.h"
/* elementfactory details */ /* elementfactory details */
static GstElementDetails gst_v4l2element_details = { static GstElementDetails gst_v4l2element_details = {
@ -39,6 +40,9 @@ enum {
/* FILL ME */ /* FILL ME */
SIGNAL_OPEN, SIGNAL_OPEN,
SIGNAL_CLOSE, SIGNAL_CLOSE,
SIGNAL_SET_VIDEOWINDOW,
SIGNAL_GET_ATTRIBUTE,
SIGNAL_SET_ATTRIBUTE,
LAST_SIGNAL LAST_SIGNAL
}; };
@ -54,15 +58,13 @@ enum {
ARG_FREQUENCY, ARG_FREQUENCY,
ARG_SIGNAL_STRENGTH, ARG_SIGNAL_STRENGTH,
ARG_HAS_AUDIO, ARG_HAS_AUDIO,
ARG_ATTRIBUTE, ARG_ATTRIBUTES,
ARG_ATTRIBUTE_SETS,
ARG_DEVICE, ARG_DEVICE,
ARG_DEVICE_NAME, ARG_DEVICE_NAME,
ARG_DEVICE_HAS_CAPTURE, ARG_DEVICE_HAS_CAPTURE,
ARG_DEVICE_HAS_OVERLAY, ARG_DEVICE_HAS_OVERLAY,
ARG_DEVICE_HAS_PLAYBACK, ARG_DEVICE_HAS_PLAYBACK,
ARG_DISPLAY, ARG_DISPLAY,
ARG_VIDEOWINDOW,
ARG_DO_OVERLAY, ARG_DO_OVERLAY,
}; };
@ -153,11 +155,8 @@ gst_v4l2element_class_init (GstV4l2ElementClass *klass)
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HAS_AUDIO, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HAS_AUDIO,
g_param_spec_boolean("has_audio","has_audio","has_audio", g_param_spec_boolean("has_audio","has_audio","has_audio",
0,G_PARAM_READABLE)); 0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATTRIBUTE, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATTRIBUTES,
g_param_spec_pointer("attribute","attribute","attribute", g_param_spec_pointer("attributes","attributes","attributes",
G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ATTRIBUTE_SETS,
g_param_spec_pointer("attribute_sets","attribute_sets","attribute_sets",
G_PARAM_READABLE)); G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE,
@ -183,9 +182,37 @@ gst_v4l2element_class_init (GstV4l2ElementClass *klass)
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DO_OVERLAY, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DO_OVERLAY,
g_param_spec_boolean("do_overlay","do_overlay","do_overlay", g_param_spec_boolean("do_overlay","do_overlay","do_overlay",
0,G_PARAM_WRITABLE)); 0,G_PARAM_WRITABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VIDEOWINDOW,
g_param_spec_pointer("videowindow","videowindow","videowindow", /* actions */
G_PARAM_WRITABLE)); gst_v4l2element_signals[SIGNAL_SET_VIDEOWINDOW] =
g_signal_new ("set_videowindow",
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET(GstV4l2ElementClass, set_videowindow),
NULL, NULL,
gstv4l2_cclosure_marshal_BOOLEAN__INT_INT_INT_INT_POINTER_INT,
G_TYPE_BOOLEAN, 6,
G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT,
G_TYPE_POINTER, G_TYPE_INT);
klass->set_videowindow = gst_v4l2_set_window;
gst_v4l2element_signals[SIGNAL_GET_ATTRIBUTE] =
g_signal_new ("get_attribute",
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET(GstV4l2ElementClass, get_attribute),
NULL, NULL,
gstv4l2_cclosure_marshal_BOOLEAN__STRING_POINTER,
G_TYPE_BOOLEAN, 2, G_TYPE_STRING, G_TYPE_POINTER);
klass->get_attribute = gst_v4l2_get_attribute;
gst_v4l2element_signals[SIGNAL_SET_ATTRIBUTE] =
g_signal_new ("set_attribute",
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET(GstV4l2ElementClass, set_attribute),
NULL, NULL,
gstv4l2_cclosure_marshal_BOOLEAN__STRING_INT,
G_TYPE_BOOLEAN, 2, G_TYPE_STRING, G_TYPE_INT);
klass->set_attribute = gst_v4l2_set_attribute;
/* signals */ /* signals */
gst_v4l2element_signals[SIGNAL_OPEN] = gst_v4l2element_signals[SIGNAL_OPEN] =
@ -220,9 +247,14 @@ gst_v4l2element_init (GstV4l2Element *v4l2element)
v4l2element->frequency = 0; v4l2element->frequency = 0;
v4l2element->controls = NULL; v4l2element->controls = NULL;
v4l2element->menus = NULL;
v4l2element->control_specs = NULL;
v4l2element->outputs = NULL; v4l2element->outputs = NULL;
v4l2element->output_names = NULL;
v4l2element->inputs = NULL; v4l2element->inputs = NULL;
v4l2element->input_names = NULL;
v4l2element->norms = NULL; v4l2element->norms = NULL;
v4l2element->norm_names = NULL;
} }
@ -267,13 +299,6 @@ gst_v4l2element_set_property (GObject *object,
return; return;
} }
break; break;
case ARG_ATTRIBUTE:
if (GST_V4L2_IS_OPEN(v4l2element)) {
gst_v4l2_set_attribute(v4l2element,
((GstV4l2Attribute*)g_value_get_pointer(value))->index,
((GstV4l2Attribute*)g_value_get_pointer(value))->value);
}
break;
case ARG_DEVICE: case ARG_DEVICE:
if (!GST_V4L2_IS_OPEN(v4l2element)) { if (!GST_V4L2_IS_OPEN(v4l2element)) {
if (v4l2element->device) if (v4l2element->device)
@ -285,15 +310,6 @@ gst_v4l2element_set_property (GObject *object,
if (!gst_v4l2_set_display(v4l2element, g_value_get_string(value))) if (!gst_v4l2_set_display(v4l2element, g_value_get_string(value)))
return; return;
break; break;
case ARG_VIDEOWINDOW:
if (GST_V4L2_IS_OPEN(v4l2element)) {
GByteArray *array = (GByteArray *) g_value_get_pointer(value);
struct v4l2_clip *clips = (struct v4l2_clip *) array->data;
gst_v4l2_set_window(v4l2element,
clips->c.left, clips->c.top, clips->c.width, clips->c.height,
&clips[1], array->len/sizeof(struct v4l2_clip)-1);
}
break;
case ARG_DO_OVERLAY: case ARG_DO_OVERLAY:
if (GST_V4L2_IS_OPEN(v4l2element)) { if (GST_V4L2_IS_OPEN(v4l2element)) {
if (!gst_v4l2_enable_overlay(v4l2element, g_value_get_boolean(value))) if (!gst_v4l2_enable_overlay(v4l2element, g_value_get_boolean(value)))
@ -316,7 +332,6 @@ gst_v4l2element_get_property (GObject *object,
GstV4l2Element *v4l2element; GstV4l2Element *v4l2element;
gint temp_i = 0; gint temp_i = 0;
gulong temp_ul = 0; gulong temp_ul = 0;
GList *list = NULL;
/* it's not null if we got it, but it might not be ours */ /* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_V4L2ELEMENT(object)); g_return_if_fail(GST_IS_V4L2ELEMENT(object));
@ -329,9 +344,7 @@ gst_v4l2element_get_property (GObject *object,
g_value_set_int(value, temp_i); g_value_set_int(value, temp_i);
break; break;
case ARG_CHANNEL_NAMES: case ARG_CHANNEL_NAMES:
if (GST_V4L2_IS_OPEN(v4l2element)) g_value_set_pointer(value, v4l2element->input_names);
list = gst_v4l2_get_input_names(v4l2element);
g_value_set_pointer(value, list);
break; break;
case ARG_OUTPUT: case ARG_OUTPUT:
if (GST_V4L2_IS_OPEN(v4l2element)) if (GST_V4L2_IS_OPEN(v4l2element))
@ -339,9 +352,7 @@ gst_v4l2element_get_property (GObject *object,
g_value_set_int(value, temp_i); g_value_set_int(value, temp_i);
break; break;
case ARG_OUTPUT_NAMES: case ARG_OUTPUT_NAMES:
if (GST_V4L2_IS_OPEN(v4l2element)) g_value_set_pointer(value, v4l2element->output_names);
list = gst_v4l2_get_output_names(v4l2element);
g_value_set_pointer(value, list);
break; break;
case ARG_NORM: case ARG_NORM:
if (GST_V4L2_IS_OPEN(v4l2element)) if (GST_V4L2_IS_OPEN(v4l2element))
@ -349,9 +360,7 @@ gst_v4l2element_get_property (GObject *object,
g_value_set_int(value, temp_i); g_value_set_int(value, temp_i);
break; break;
case ARG_NORM_NAMES: case ARG_NORM_NAMES:
if (GST_V4L2_IS_OPEN(v4l2element)) g_value_set_pointer(value, v4l2element->norm_names);
list = gst_v4l2_get_norm_names(v4l2element);
g_value_set_pointer(value, list);
break; break;
case ARG_HAS_TUNER: case ARG_HAS_TUNER:
if (GST_V4L2_IS_OPEN(v4l2element)) if (GST_V4L2_IS_OPEN(v4l2element))
@ -373,23 +382,15 @@ gst_v4l2element_get_property (GObject *object,
temp_i = gst_v4l2_has_audio(v4l2element); temp_i = gst_v4l2_has_audio(v4l2element);
g_value_set_boolean(value, temp_i>0?TRUE:FALSE); g_value_set_boolean(value, temp_i>0?TRUE:FALSE);
break; break;
case ARG_ATTRIBUTE: case ARG_ATTRIBUTES:
if (GST_V4L2_IS_OPEN(v4l2element)) g_value_set_pointer(value, v4l2element->control_specs);
gst_v4l2_get_attribute(v4l2element,
((GstV4l2Attribute*)g_value_get_pointer(value))->index, &temp_i);
((GstV4l2Attribute*)g_value_get_pointer(value))->value = temp_i;
break;
case ARG_ATTRIBUTE_SETS:
if (GST_V4L2_IS_OPEN(v4l2element))
list = gst_v4l2_get_attributes(v4l2element);
g_value_set_pointer(value, list);
break; break;
case ARG_DEVICE: case ARG_DEVICE:
g_value_set_string(value, g_strdup(v4l2element->device)); g_value_set_string(value, v4l2element->device);
break; break;
case ARG_DEVICE_NAME: case ARG_DEVICE_NAME:
if (GST_V4L2_IS_OPEN(v4l2element)) if (GST_V4L2_IS_OPEN(v4l2element))
g_value_set_string(value, g_strdup(v4l2element->vcap.card)); g_value_set_string(value, v4l2element->vcap.card);
break; break;
case ARG_DEVICE_HAS_CAPTURE: case ARG_DEVICE_HAS_CAPTURE:
if (GST_V4L2_IS_OPEN(v4l2element) && if (GST_V4L2_IS_OPEN(v4l2element) &&

53
sys/v4l2/gstv4l2element.h
View file

@ -41,28 +41,6 @@
typedef struct _GstV4l2Element GstV4l2Element; typedef struct _GstV4l2Element GstV4l2Element;
typedef struct _GstV4l2ElementClass GstV4l2ElementClass; typedef struct _GstV4l2ElementClass GstV4l2ElementClass;
typedef enum {
GST_V4L2_ATTRIBUTE_VALUE_TYPE_INTEGER = V4L2_CTRL_TYPE_INTEGER,
GST_V4L2_ATTRIBUTE_VALUE_TYPE_BOOLEAN = V4L2_CTRL_TYPE_BOOLEAN,
GST_V4L2_ATTRIBUTE_VALUE_TYPE_MENU = V4L2_CTRL_TYPE_MENU,
GST_V4L2_ATTRIBUTE_VALUE_TYPE_BUTTON = V4L2_CTRL_TYPE_BUTTON,
} GstV4l2AttributeValueType;
typedef enum {
GST_V4L2_ATTRIBUTE_TYPE_VIDEO,
GST_V4L2_ATTRIBUTE_TYPE_AUDIO,
GST_V4L2_ATTRIBUTE_TYPE_OTHER,
} GstV4l2AttributeType;
typedef struct _GstV4l2Attribute {
gint index;
gchar *name;
GstV4l2AttributeType type;
GstV4l2AttributeValueType val_type;
gint min, max, value;
GList *list_items; /* in case of 'list' */
} GstV4l2Attribute;
struct _GstV4l2Element { struct _GstV4l2Element {
GstElement element; GstElement element;
@ -79,10 +57,10 @@ struct _GstV4l2Element {
struct v4l2_capability vcap; struct v4l2_capability vcap;
/* the toys available to us */ /* the toys available to us */
GList /*v4l2_input*/ *inputs; GList /*v4l2_input*/ *inputs, *input_names;
GList /*v4l2_output*/ *outputs; GList /*v4l2_output*/ *outputs, *output_names;
GList /*v4l2_enumstd*/ *norms; GList /*v4l2_enumstd*/ *norms, *norm_names;
GList /*v4l2_queryctrl*/ *controls; GList /*v4l2_queryctrl*/ *controls, *control_specs;
GList /*GList:v4l2_querymenu*/ *menus; GList /*GList:v4l2_querymenu*/ *menus;
/* caching values */ /* caching values */
@ -96,10 +74,25 @@ struct _GstV4l2ElementClass {
GstElementClass parent_class; GstElementClass parent_class;
/* signals */ /* signals */
void (*open) (GstElement *element, void (*open) (GstElement *element,
const gchar *device); const gchar *device);
void (*close) (GstElement *element, void (*close) (GstElement *element,
const gchar *device); const gchar *device);
/* actions */
gboolean (*set_videowindow) (GstElement *element,
gint x_offset,
gint y_offset,
gint height,
gint width,
struct v4l2_clip *clips,
gint num_clips);
gboolean (*get_attribute) (GstElement *element,
const gchar *attr_name,
int *value);
gboolean (*set_attribute) (GstElement *element,
const gchar *attr_name,
const int value);
}; };

35
sys/v4l2/gstv4l2src.c
View file

@ -45,8 +45,6 @@ enum {
ARG_HEIGHT, ARG_HEIGHT,
ARG_PALETTE, ARG_PALETTE,
ARG_PALETTE_NAMES, ARG_PALETTE_NAMES,
ARG_FOURCC,
ARG_FOURCC_LIST,
ARG_NUMBUFS, ARG_NUMBUFS,
ARG_BUFSIZE ARG_BUFSIZE
}; };
@ -154,12 +152,6 @@ gst_v4l2src_class_init (GstV4l2SrcClass *klass)
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PALETTE_NAMES, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PALETTE_NAMES,
g_param_spec_pointer("palette_name","palette_name","palette_name", g_param_spec_pointer("palette_name","palette_name","palette_name",
G_PARAM_READABLE)); G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FOURCC,
g_param_spec_string("fourcc","fourcc","fourcc",
NULL,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FOURCC_LIST,
g_param_spec_pointer("fourcc_list","fourcc_list","fourcc_list",
G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUMBUFS, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUMBUFS,
g_param_spec_int("num_buffers","num_buffers","num_buffers", g_param_spec_int("num_buffers","num_buffers","num_buffers",
@ -201,6 +193,7 @@ gst_v4l2src_init (GstV4l2Src *v4l2src)
v4l2src->breq.count = 0; v4l2src->breq.count = 0;
v4l2src->formats = NULL; v4l2src->formats = NULL;
v4l2src->format_list = NULL;
} }
@ -742,19 +735,6 @@ gst_v4l2src_set_property (GObject *object,
} }
break; break;
case ARG_FOURCC:
if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
gint i;
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: case ARG_NUMBUFS:
if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) { if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) {
v4l2src->breq.count = g_value_get_int(value); v4l2src->breq.count = g_value_get_int(value);
@ -793,18 +773,7 @@ gst_v4l2src_get_property (GObject *object,
break; break;
case ARG_PALETTE_NAMES: case ARG_PALETTE_NAMES:
g_value_set_pointer(value, gst_v4l2src_get_format_list(v4l2src)); g_value_set_pointer(value, v4l2src->format_list);
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));
break; break;
case ARG_NUMBUFS: case ARG_NUMBUFS:

2
sys/v4l2/gstv4l2src.h
View file

@ -45,7 +45,7 @@ struct _GstV4l2Src {
GstPad *srcpad; GstPad *srcpad;
/* internal lists */ /* internal lists */
GList /*v4l2_fmtdesc*/ *formats; /* list of available capture formats */ GList /*v4l2_fmtdesc*/ *formats, *format_list; /* list of available capture formats */
/* buffer properties */ /* buffer properties */
struct v4l2_buffer bufsettings; struct v4l2_buffer bufsettings;

3
sys/v4l2/v4l2-overlay_calls.c
View file

@ -81,7 +81,7 @@ gst_v4l2_set_display (GstV4l2Element *v4l2element,
******************************************************/ ******************************************************/
gboolean gboolean
gst_v4l2_set_window (GstV4l2Element *v4l2element, gst_v4l2_set_window (GstElement *element,
gint x, gint x,
gint y, gint y,
gint w, gint w,
@ -90,6 +90,7 @@ gst_v4l2_set_window (GstV4l2Element *v4l2element,
gint num_clips) gint num_clips)
{ {
struct v4l2_format fmt; struct v4l2_format fmt;
GstV4l2Element *v4l2element = GST_V4L2ELEMENT(element);
DEBUG("trying to set video window to %dx%d,%d,%d", x,y,w,h); DEBUG("trying to set video window to %dx%d,%d,%d", x,y,w,h);
GST_V4L2_CHECK_OVERLAY(v4l2element); GST_V4L2_CHECK_OVERLAY(v4l2element);

242
sys/v4l2/v4l2_calls.c
View file

@ -90,6 +90,8 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
inpptr = g_malloc(sizeof(input)); inpptr = g_malloc(sizeof(input));
memcpy(inpptr, &input, sizeof(input)); memcpy(inpptr, &input, sizeof(input));
v4l2element->inputs = g_list_append(v4l2element->inputs, inpptr); v4l2element->inputs = g_list_append(v4l2element->inputs, inpptr);
v4l2element->input_names = g_list_append(v4l2element->input_names, inpptr->name);
} }
/* outputs */ /* outputs */
@ -109,6 +111,8 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
outptr = g_malloc(sizeof(output)); outptr = g_malloc(sizeof(output));
memcpy(outptr, &output, sizeof(output)); memcpy(outptr, &output, sizeof(output));
v4l2element->outputs = g_list_append(v4l2element->outputs, outptr); v4l2element->outputs = g_list_append(v4l2element->outputs, outptr);
v4l2element->output_names = g_list_append(v4l2element->output_names, outptr->name);
} }
/* norms... */ /* norms... */
@ -128,12 +132,15 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
stdptr = g_malloc(sizeof(standard)); stdptr = g_malloc(sizeof(standard));
memcpy(stdptr, &standard, sizeof(standard)); memcpy(stdptr, &standard, sizeof(standard));
v4l2element->norms = g_list_append(v4l2element->norms, stdptr); 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) */ /* and lastly, controls+menus (if appropriate) */
for (n=V4L2_CID_BASE;;n++) { for (n=V4L2_CID_BASE;;n++) {
struct v4l2_queryctrl control, *ctrlptr; struct v4l2_queryctrl control, *ctrlptr;
GList *menus = NULL; GList *menus = NULL;
GParamSpec *spec = NULL;
/* hacky... */ /* hacky... */
if (n == V4L2_CID_LASTP1) if (n == V4L2_CID_LASTP1)
n = V4L2_CID_PRIVATE_BASE; n = V4L2_CID_PRIVATE_BASE;
@ -178,6 +185,30 @@ gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
} }
} }
v4l2element->menus = g_list_append(v4l2element->menus, menus); 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; return TRUE;
@ -195,16 +226,22 @@ gst_v4l2_empty_lists (GstV4l2Element *v4l2element)
v4l2element->inputs = g_list_remove(v4l2element->inputs, data); v4l2element->inputs = g_list_remove(v4l2element->inputs, data);
g_free(data); g_free(data);
} }
g_list_free(v4l2element->input_names);
v4l2element->input_names = NULL;
while (g_list_length(v4l2element->outputs) > 0) { while (g_list_length(v4l2element->outputs) > 0) {
gpointer data = g_list_nth_data(v4l2element->outputs, 0); gpointer data = g_list_nth_data(v4l2element->outputs, 0);
v4l2element->outputs = g_list_remove(v4l2element->outputs, data); v4l2element->outputs = g_list_remove(v4l2element->outputs, data);
g_free(data); g_free(data);
} }
g_list_free(v4l2element->output_names);
v4l2element->output_names = NULL;
while (g_list_length(v4l2element->norms) > 0) { while (g_list_length(v4l2element->norms) > 0) {
gpointer data = g_list_nth_data(v4l2element->norms, 0); gpointer data = g_list_nth_data(v4l2element->norms, 0);
v4l2element->norms = g_list_remove(v4l2element->norms, data); v4l2element->norms = g_list_remove(v4l2element->norms, data);
g_free(data); g_free(data);
} }
g_list_free(v4l2element->norm_names);
v4l2element->norm_names = NULL;
while (g_list_length(v4l2element->controls) > 0) { while (g_list_length(v4l2element->controls) > 0) {
gpointer data = g_list_nth_data(v4l2element->controls, 0); gpointer data = g_list_nth_data(v4l2element->controls, 0);
v4l2element->controls = g_list_remove(v4l2element->controls, data); v4l2element->controls = g_list_remove(v4l2element->controls, data);
@ -220,6 +257,11 @@ gst_v4l2_empty_lists (GstV4l2Element *v4l2element)
g_free(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));
}
} }
@ -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() * gst_v4l2_get_input()
* Get the input of the current device * 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() * gst_v4l2_get_output()
* Get the output of the current device * Get the output of the current device
@ -542,30 +538,7 @@ gst_v4l2_set_output (GstV4l2Element *v4l2element,
/****************************************************** /******************************************************
* gst_v4l2_get_output_names() * gst_v4l2_has_tuner():
* 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 * Check whether the device has a tuner
* return value: TRUE if it has a tuner, else FALSE * 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 * get the current frequency
* return value: TRUE on success, FALSE on error * 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 * set frequency
* return value: TRUE on success, FALSE on error * 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 * get the strength of the signal on the current input
* return value: TRUE on success, FALSE on error * 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 * Check whether the device has audio capabilities
* return value: TRUE if it has a tuner, else FALSE * return value: TRUE if it has a tuner, else FALSE
******************************************************/ ******************************************************/
@ -713,96 +686,53 @@ gst_v4l2_has_audio (GstV4l2Element *v4l2element)
/****************************************************** /******************************************************
* gst_v4l_get_attributes(): * gst_v4l2_control_name_to_num():
* get a list of attributes available on this device * convert name to num (-1 if nothing)
* return value: the list
******************************************************/ ******************************************************/
GList * static gint
gst_v4l2_get_attributes (GstV4l2Element *v4l2element) gst_v4l2_control_name_to_num (GstV4l2Element *v4l2element,
const gchar *name)
{ {
gint i; GList *item;
GList *list = NULL;
DEBUG("getting a list of available attributes"); for (item = v4l2element->controls; item != NULL; item = item->next) {
struct v4l2_queryctrl *ctrl = item->data;
for (i=0;i<g_list_length(v4l2element->controls);i++) { if (!strcmp(ctrl->name, name))
struct v4l2_queryctrl *control = (struct v4l2_queryctrl *) g_list_nth_data(v4l2element->controls, i); return ctrl->id;
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;
} }
return list; return -1;
} }
/****************************************************** /******************************************************
* gst_v4l_get_attribute(): * gst_v4l2_get_attribute():
* try to get the value of one specific attribute * try to get the value of one specific attribute
* return value: TRUE on success, FALSE on error * return value: TRUE on success, FALSE on error
******************************************************/ ******************************************************/
gboolean gboolean
gst_v4l2_get_attribute (GstV4l2Element *v4l2element, gst_v4l2_get_attribute (GstElement *element,
gint attribute_num, const gchar *name,
gint *value) int *value)
{ {
struct v4l2_control control; 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); DEBUG("getting value of attribute %d", attribute_num);
GST_V4L2_CHECK_OPEN(v4l2element); 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), gst_element_error(GST_ELEMENT(v4l2element),
"Invalid control ID %d", attribute_num); "Invalid control %s", name);
return FALSE; return FALSE;
} }
@ -810,8 +740,8 @@ gst_v4l2_get_attribute (GstV4l2Element *v4l2element,
if (ioctl(v4l2element->video_fd, VIDIOC_G_CTRL, &control) < 0) { if (ioctl(v4l2element->video_fd, VIDIOC_G_CTRL, &control) < 0) {
gst_element_error(GST_ELEMENT(v4l2element), gst_element_error(GST_ELEMENT(v4l2element),
"Failed to get value for control %d on device %s: %s", "Failed to get value for control %s (%d) on device %s: %s",
attribute_num, v4l2element->device, g_strerror(errno)); name, attribute_num, v4l2element->device, g_strerror(errno));
return FALSE; 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 * try to set the value of one specific attribute
* return value: TRUE on success, FALSE on error * return value: TRUE on success, FALSE on error
******************************************************/ ******************************************************/
gboolean gboolean
gst_v4l2_set_attribute (GstV4l2Element *v4l2element, gst_v4l2_set_attribute (GstElement *element,
gint attribute_num, const gchar *name,
gint value) const int value)
{ {
struct v4l2_control control; 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); DEBUG("setting value of attribute %d to %d", attribute_num, value);
GST_V4L2_CHECK_OPEN(v4l2element); 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), gst_element_error(GST_ELEMENT(v4l2element),
"Invalid control ID %d", attribute_num); "Invalid control %s", name);
return FALSE; return FALSE;
} }
@ -848,8 +786,8 @@ gst_v4l2_set_attribute (GstV4l2Element *v4l2element,
if (ioctl(v4l2element->video_fd, VIDIOC_S_CTRL, &control) < 0) { if (ioctl(v4l2element->video_fd, VIDIOC_S_CTRL, &control) < 0) {
gst_element_error(GST_ELEMENT(v4l2element), gst_element_error(GST_ELEMENT(v4l2element),
"Failed to set value %d for control %d on device %s: %s", "Failed to set value %d for control %s (%d) on device %s: %s",
value, attribute_num, v4l2element->device, g_strerror(errno)); value, name, attribute_num, v4l2element->device, g_strerror(errno));
return FALSE; return FALSE;
} }

18
sys/v4l2/v4l2_calls.h
View file

@ -89,17 +89,14 @@ gboolean gst_v4l2_get_norm (GstV4l2Element *v4l2element,
gint *norm); gint *norm);
gboolean gst_v4l2_set_norm (GstV4l2Element *v4l2element, gboolean gst_v4l2_set_norm (GstV4l2Element *v4l2element,
gint norm); gint norm);
GList * gst_v4l2_get_norm_names (GstV4l2Element *v4l2element);
gboolean gst_v4l2_get_input (GstV4l2Element *v4l2element, gboolean gst_v4l2_get_input (GstV4l2Element *v4l2element,
gint *input); gint *input);
gboolean gst_v4l2_set_input (GstV4l2Element *v4l2element, gboolean gst_v4l2_set_input (GstV4l2Element *v4l2element,
gint input); gint input);
GList * gst_v4l2_get_input_names (GstV4l2Element *v4l2element);
gboolean gst_v4l2_get_output (GstV4l2Element *v4l2element, gboolean gst_v4l2_get_output (GstV4l2Element *v4l2element,
gint *output); gint *output);
gboolean gst_v4l2_set_output (GstV4l2Element *v4l2element, gboolean gst_v4l2_set_output (GstV4l2Element *v4l2element,
gint output); gint output);
GList * gst_v4l2_get_output_names (GstV4l2Element *v4l2element);
/* frequency control */ /* frequency control */
gboolean gst_v4l2_has_tuner (GstV4l2Element *v4l2element, gboolean gst_v4l2_has_tuner (GstV4l2Element *v4l2element,
@ -113,18 +110,17 @@ gboolean gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
/* attribute control */ /* attribute control */
gboolean gst_v4l2_has_audio (GstV4l2Element *v4l2element); gboolean gst_v4l2_has_audio (GstV4l2Element *v4l2element);
GList * gst_v4l2_get_attributes (GstV4l2Element *v4l2element); gboolean gst_v4l2_get_attribute (GstElement *element,
gboolean gst_v4l2_get_attribute (GstV4l2Element *v4l2element, const char *attribute,
gint attribute_num, int *value);
gint *value); gboolean gst_v4l2_set_attribute (GstElement *element,
gboolean gst_v4l2_set_attribute (GstV4l2Element *v4l2element, const char *attribute,
gint attribute_num, const int value);
gint value);
/* overlay */ /* overlay */
gboolean gst_v4l2_set_display (GstV4l2Element *v4l2element, gboolean gst_v4l2_set_display (GstV4l2Element *v4l2element,
const gchar *display); const gchar *display);
gboolean gst_v4l2_set_window (GstV4l2Element *v4l2element, gboolean gst_v4l2_set_window (GstElement *element,
gint x, gint y, gint x, gint y,
gint w, gint h, gint w, gint h,
struct v4l2_clip *clips, struct v4l2_clip *clips,

50
sys/v4l2/v4l2src_calls.c
View file

@ -72,6 +72,8 @@ gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src)
fmtptr = g_malloc(sizeof(format)); fmtptr = g_malloc(sizeof(format));
memcpy(fmtptr, &format, sizeof(format)); memcpy(fmtptr, &format, sizeof(format));
v4l2src->formats = g_list_append(v4l2src->formats, fmtptr); v4l2src->formats = g_list_append(v4l2src->formats, fmtptr);
v4l2src->format_list = g_list_append(v4l2src->format_list, fmtptr->description);
} }
return TRUE; return TRUE;
@ -92,6 +94,8 @@ gst_v4l2src_empty_format_list (GstV4l2Src *v4l2src)
v4l2src->formats = g_list_remove(v4l2src->formats, data); v4l2src->formats = g_list_remove(v4l2src->formats, data);
g_free(data); g_free(data);
} }
g_list_free(v4l2src->format_list);
v4l2src->format_list = NULL;
return TRUE; return TRUE;
} }
@ -399,49 +403,3 @@ gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src)
return TRUE; 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;
}

2
sys/v4l2/v4l2src_calls.h
View file

@ -40,8 +40,6 @@ gboolean gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src);
gboolean gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src); gboolean gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src);
gboolean gst_v4l2src_empty_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__ */ #endif /* __V4L2_SRC_CALLS_H__ */