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v4l2: add norm property

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Based on a patch by Guennadi Liakhovetski.

v2: updates because I forgot to add GstTuner interface to v4l2sink
v3: update to add all possible values to norm enum
This commit is contained in:
Rob Clark 2010-04-04 06:43:41 -05:00 committed by Sebastian Dröge
parent b316e2346c
commit 9c9585116c
6 changed files with 128 additions and 32 deletions
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108
sys/v4l2/gstv4l2object.c
View file

@ -56,7 +56,7 @@ GST_DEBUG_CATEGORY_EXTERN (v4l2_debug);
#define DEFAULT_PROP_DEVICE_NAME NULL
#define DEFAULT_PROP_DEVICE_FD -1
#define DEFAULT_PROP_FLAGS 0
#define DEFAULT_PROP_NORM NULL
#define DEFAULT_PROP_TV_NORM 0
#define DEFAULT_PROP_CHANNEL NULL
#define DEFAULT_PROP_FREQUENCY 0
@ -316,6 +316,58 @@ gst_v4l2_device_get_type (void)
return v4l2_device_type;
}
#define GST_TYPE_V4L2_TV_NORM (gst_v4l2_tv_norm_get_type ())
static GType
gst_v4l2_tv_norm_get_type (void)
{
static GType v4l2_tv_norm = 0;
if (!v4l2_tv_norm) {
static const GEnumValue tv_norms[] = {
{0, "none", "none"},
{V4L2_STD_NTSC, "NTSC", "NTSC"},
{V4L2_STD_NTSC_M, "NTSC-M", "NTSC-M"},
{V4L2_STD_NTSC_M_JP, "NTSC-M-JP", "NTSC-M-JP"},
{V4L2_STD_NTSC_M_KR, "NTSC-M-KR", "NTSC-M-KR"},
{V4L2_STD_NTSC_443, "NTSC-443", "NTSC-443"},
{V4L2_STD_PAL, "PAL", "PAL"},
{V4L2_STD_PAL_BG, "PAL-BG", "PAL-BG"},
{V4L2_STD_PAL_B, "PAL-B", "PAL-B"},
{V4L2_STD_PAL_B1, "PAL-B1", "PAL-B1"},
{V4L2_STD_PAL_G, "PAL-G", "PAL-G"},
{V4L2_STD_PAL_H, "PAL-H", "PAL-H"},
{V4L2_STD_PAL_I, "PAL-I", "PAL-I"},
{V4L2_STD_PAL_DK, "PAL-DK", "PAL-DK"},
{V4L2_STD_PAL_D, "PAL-D", "PAL-D"},
{V4L2_STD_PAL_D1, "PAL-D1", "PAL-D1"},
{V4L2_STD_PAL_K, "PAL-K", "PAL-K"},
{V4L2_STD_PAL_M, "PAL-M", "PAL-M"},
{V4L2_STD_PAL_N, "PAL-N", "PAL-N"},
{V4L2_STD_PAL_Nc, "PAL-Nc", "PAL-Nc"},
{V4L2_STD_PAL_60, "PAL-60", "PAL-60"},
{V4L2_STD_SECAM, "SECAM", "SECAM"},
{V4L2_STD_SECAM_B, "SECAM-B", "SECAM-B"},
{V4L2_STD_SECAM_G, "SECAM-G", "SECAM-G"},
{V4L2_STD_SECAM_H, "SECAM-H", "SECAM-H"},
{V4L2_STD_SECAM_DK, "SECAM-DK", "SECAM-DK"},
{V4L2_STD_SECAM_D, "SECAM-D", "SECAM-D"},
{V4L2_STD_SECAM_K, "SECAM-K", "SECAM-K"},
{V4L2_STD_SECAM_K1, "SECAM-K1", "SECAM-K1"},
{V4L2_STD_SECAM_L, "SECAM-L", "SECAM-L"},
{V4L2_STD_SECAM_LC, "SECAM-Lc", "SECAM-Lc"},
{0, NULL, NULL}
};
v4l2_tv_norm = g_enum_register_static ("V4L2_TV_norms", tv_norms);
}
return v4l2_tv_norm;
}
void
gst_v4l2_object_install_properties_helper (GObjectClass * gobject_class,
const char *default_device)
@ -384,6 +436,19 @@ gst_v4l2_object_install_properties_helper (GObjectClass * gobject_class,
"Hue or color balance", G_MININT,
G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
/**
* GstV4l2Src:norm
*
* TV norm
*
* Since: 0.10.30
*/
g_object_class_install_property (gobject_class, PROP_TV_NORM,
g_param_spec_enum ("norm", "TV norm",
"video standard",
GST_TYPE_V4L2_TV_NORM, DEFAULT_PROP_TV_NORM,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
GstV4l2Object *
@ -440,9 +505,6 @@ gst_v4l2_object_destroy (GstV4l2Object * v4l2object)
if (v4l2object->channel)
g_free (v4l2object->channel);
if (v4l2object->norm)
g_free (v4l2object->norm);
if (v4l2object->formats) {
gst_v4l2_object_clear_format_list (v4l2object);
}
@ -510,23 +572,10 @@ gst_v4l2_object_set_property_helper (GstV4l2Object * v4l2object,
return TRUE;
}
break;
#if 0
case PROP_NORM:
if (GST_V4L2_IS_OPEN (v4l2object)) {
GstTuner *tuner = GST_TUNER (v4l2object->element);
GstTunerNorm *norm = gst_tuner_find_norm_by_name (tuner,
(gchar *) g_value_get_string (value));
if (norm) {
/* like gst_tuner_set_norm (tuner, norm)
without g_object_notify */
gst_v4l2_tuner_set_norm (v4l2object, norm);
}
} else {
g_free (v4l2object->norm);
v4l2object->norm = g_value_dup_string (value);
}
case PROP_TV_NORM:
v4l2object->tv_norm = g_value_get_enum (value);
break;
#if 0
case PROP_CHANNEL:
if (GST_V4L2_IS_OPEN (v4l2object)) {
GstTuner *tuner = GST_TUNER (v4l2object->element);
@ -631,6 +680,9 @@ gst_v4l2_object_get_property_helper (GstV4l2Object * v4l2object,
return TRUE;
}
break;
case PROP_TV_NORM:
g_value_set_enum (value, v4l2object->tv_norm);
break;
default:
return FALSE;
break;
@ -650,16 +702,18 @@ gst_v4l2_set_defaults (GstV4l2Object * v4l2object)
tuner = GST_TUNER (v4l2object->element);
if (v4l2object->norm)
norm = gst_tuner_find_norm_by_name (tuner, v4l2object->norm);
if (v4l2object->tv_norm)
norm = gst_v4l2_tuner_get_norm_by_std_id (v4l2object, v4l2object->tv_norm);
GST_DEBUG_OBJECT (v4l2object->element, "tv_norm=%d, norm=%p",
v4l2object->tv_norm, norm);
if (norm) {
gst_tuner_set_norm (tuner, norm);
} else {
norm =
GST_TUNER_NORM (gst_tuner_get_norm (GST_TUNER (v4l2object->element)));
if (norm) {
g_free (v4l2object->norm);
v4l2object->norm = g_strdup (norm->label);
v4l2object->tv_norm =
gst_v4l2_tuner_get_std_id_by_norm (v4l2object, norm);
gst_tuner_norm_changed (tuner, norm);
}
}
@ -1887,13 +1941,15 @@ default_frame_sizes:
}
/* Since we can't get framerate directly, try to use the current norm */
if (v4l2object->norm && v4l2object->norms) {
if (v4l2object->tv_norm && v4l2object->norms) {
GList *norms;
GstTunerNorm *norm = NULL;
GstTunerNorm *current =
gst_v4l2_tuner_get_norm_by_std_id (v4l2object, v4l2object->tv_norm);
for (norms = v4l2object->norms; norms != NULL; norms = norms->next) {
norm = (GstTunerNorm *) norms->data;
if (!strcmp (norm->label, v4l2object->norm))
if (!strcmp (norm->label, current->label))
break;
}
/* If it's possible, set framerate to that (discrete) value */

7
sys/v4l2/gstv4l2object.h
View file

@ -108,7 +108,7 @@ struct _GstV4l2Object {
GList *channels;
/* properties */
gchar *norm;
v4l2_std_id tv_norm;
gchar *channel;
gulong frequency;
@ -133,11 +133,12 @@ GType gst_v4l2_object_get_type (void);
PROP_DEVICE, \
PROP_DEVICE_NAME, \
PROP_DEVICE_FD, \
PROP_FLAGS, \
PROP_FLAGS, \
PROP_BRIGHTNESS, \
PROP_CONTRAST, \
PROP_SATURATION, \
PROP_HUE
PROP_HUE, \
PROP_TV_NORM
/* create/destroy */
GstV4l2Object * gst_v4l2_object_new (GstElement * element,

14
sys/v4l2/gstv4l2sink.c
View file

@ -55,6 +55,7 @@
#include "gstv4l2colorbalance.h"
#include "gstv4l2tuner.h"
#ifdef HAVE_XVIDEO
#include "gstv4l2xoverlay.h"
#endif
@ -91,6 +92,7 @@ enum
GST_IMPLEMENT_V4L2_PROBE_METHODS (GstV4l2SinkClass, gst_v4l2sink);
GST_IMPLEMENT_V4L2_COLOR_BALANCE_METHODS (GstV4l2Sink, gst_v4l2sink);
GST_IMPLEMENT_V4L2_TUNER_METHODS (GstV4l2Sink, gst_v4l2sink);
#ifdef HAVE_XVIDEO
GST_IMPLEMENT_V4L2_XOVERLAY_METHODS (GstV4l2Sink, gst_v4l2sink);
#endif
@ -105,10 +107,12 @@ gst_v4l2sink_iface_supported (GstImplementsInterface * iface, GType iface_type)
g_assert (iface_type == GST_TYPE_X_OVERLAY ||
iface_type == GST_TYPE_NAVIGATION ||
iface_type == GST_TYPE_COLOR_BALANCE ||
iface_type == GST_TYPE_VIDEO_ORIENTATION);
iface_type == GST_TYPE_VIDEO_ORIENTATION ||
iface_type == GST_TYPE_TUNER);
#else
g_assert (iface_type == GST_TYPE_COLOR_BALANCE ||
iface_type == GST_TYPE_VIDEO_ORIENTATION);
iface_type == GST_TYPE_VIDEO_ORIENTATION ||
iface_type == GST_TYPE_TUNER);
#endif
if (v4l2object->video_fd == -1)
@ -151,6 +155,11 @@ gst_v4l2sink_init_interfaces (GType type)
NULL,
NULL,
};
static const GInterfaceInfo v4l2_tuner_info = {
(GInterfaceInitFunc) gst_v4l2sink_tuner_interface_init,
NULL,
NULL,
};
#ifdef HAVE_XVIDEO
static const GInterfaceInfo v4l2_xoverlay_info = {
(GInterfaceInitFunc) gst_v4l2sink_xoverlay_interface_init,
@ -181,6 +190,7 @@ gst_v4l2sink_init_interfaces (GType type)
g_type_add_interface_static (type,
GST_TYPE_IMPLEMENTS_INTERFACE, &v4l2iface_info);
g_type_add_interface_static (type, GST_TYPE_TUNER, &v4l2_tuner_info);
#ifdef HAVE_XVIDEO
g_type_add_interface_static (type, GST_TYPE_X_OVERLAY, &v4l2_xoverlay_info);
g_type_add_interface_static (type,

23
sys/v4l2/gstv4l2tuner.c
View file

@ -237,7 +237,6 @@ gst_v4l2_tuner_set_norm (GstV4l2Object * v4l2object, GstTunerNorm * norm)
GstTunerNorm *
gst_v4l2_tuner_get_norm (GstV4l2Object * v4l2object)
{
GList *item;
v4l2_std_id norm;
/* assert that we're opened and that we're using a known item */
@ -245,6 +244,14 @@ gst_v4l2_tuner_get_norm (GstV4l2Object * v4l2object)
gst_v4l2_get_norm (v4l2object, &norm);
return gst_v4l2_tuner_get_norm_by_std_id (v4l2object, norm);
}
GstTunerNorm *
gst_v4l2_tuner_get_norm_by_std_id (GstV4l2Object * v4l2object, v4l2_std_id norm)
{
GList *item;
for (item = v4l2object->norms; item != NULL; item = item->next) {
if (norm & GST_V4L2_TUNER_NORM (item->data)->index)
return (GstTunerNorm *) item->data;
@ -253,6 +260,20 @@ gst_v4l2_tuner_get_norm (GstV4l2Object * v4l2object)
return NULL;
}
v4l2_std_id
gst_v4l2_tuner_get_std_id_by_norm (GstV4l2Object * v4l2object,
GstTunerNorm * norm)
{
GList *item;
for (item = v4l2object->norms; item != NULL; item = item->next) {
if (norm == GST_TUNER_NORM (item->data))
return GST_V4L2_TUNER_NORM (item->data)->index;
}
return 0;
}
void
gst_v4l2_tuner_set_frequency_and_notify (GstV4l2Object * v4l2object,
GstTunerChannel * channel, gulong frequency)

5
sys/v4l2/gstv4l2tuner.h
View file

@ -94,6 +94,11 @@ void gst_v4l2_tuner_set_norm_and_notify (GstV4l2Object * v4l2o
GstTunerNorm* gst_v4l2_tuner_get_norm (GstV4l2Object * v4l2object);
gboolean gst_v4l2_tuner_set_norm (GstV4l2Object * v4l2object,
GstTunerNorm * norm);
GstTunerNorm* gst_v4l2_tuner_get_norm_by_std_id (GstV4l2Object * v4l2object,
v4l2_std_id norm);
v4l2_std_id gst_v4l2_tuner_get_std_id_by_norm (GstV4l2Object * v4l2object,
GstTunerNorm * norm);
/* frequency */
void gst_v4l2_tuner_set_frequency_and_notify (GstV4l2Object * v4l2object,
GstTunerChannel * channel,

3
sys/v4l2/v4l2_calls.c
View file

@ -229,6 +229,9 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
standard.frameperiod.denominator, standard.frameperiod.numerator);
v4l2norm->index = standard.id;
GST_DEBUG_OBJECT (v4l2object->element, "index=%08x, label=%s",
(unsigned int) v4l2norm->index, norm->label);
v4l2object->norms = g_list_prepend (v4l2object->norms, (gpointer) norm);
}
v4l2object->norms = g_list_reverse (v4l2object->norms);