mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-03 16:09:39 +00:00
Few improvements to move to good.
Original commit message from CVS: Few improvements to move to good.
This commit is contained in:
parent
8d58b030d6
commit
ee5f475e67
5 changed files with 313 additions and 77 deletions
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@ -8,21 +8,27 @@ xv_source =
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xv_libs =
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xv_libs =
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endif
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endif
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libgstvideo4linux2_la_SOURCES = \
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libgstvideo4linux2_la_SOURCES = gstv4l2.c \
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gstv4l2.c \
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gstv4l2colorbalance.c \
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gstv4l2colorbalance.c \
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gstv4l2element.c \
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gstv4l2element.c \
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gstv4l2src.c \
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gstv4l2src.c \
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gstv4l2tuner.c \
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gstv4l2tuner.c \
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v4l2_calls.c \
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v4l2_calls.c \
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v4l2src_calls.c $(xv_source)
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v4l2src_calls.c \
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$(xv_source)
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libgstvideo4linux2_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) \
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$(GST_BASE_CFLAGS) \
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$(GST_CFLAGS) \
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$(X_CFLAGS)
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libgstvideo4linux2_la_CFLAGS = $(GST_CFLAGS) $(X_CFLAGS) $(GST_BASE_CFLAGS) \
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$(GST_PLUGINS_BASE_CFLAGS)
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libgstvideo4linux2_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstvideo4linux2_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstvideo4linux2_la_LIBADD = \
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-lgstinterfaces-$(GST_MAJORMINOR) \
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libgstvideo4linux2_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) \
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$(GST_BASE_LIBS) $(GST_LIBS) $(GST_PLUGINS_BASE_LIBS) $(xv_libs)
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$(GST_BASE_LIBS) \
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$(GST_LIBS) \
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$(xv_libs) \
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-lgstinterfaces-$(GST_MAJORMINOR)
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noinst_HEADERS = gstv4l2element.h v4l2_calls.h \
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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 \
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@ -27,12 +27,6 @@
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#include "gstv4l2colorbalance.h"
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#include "gstv4l2colorbalance.h"
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#include "gstv4l2element.h"
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#include "gstv4l2element.h"
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static void
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gst_v4l2_color_balance_channel_class_init (GstV4l2ColorBalanceChannelClass *
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klass);
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static void gst_v4l2_color_balance_channel_init (GstV4l2ColorBalanceChannel *
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channel);
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static const GList *gst_v4l2_color_balance_list_channels (GstColorBalance *
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static const GList *gst_v4l2_color_balance_list_channels (GstColorBalance *
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balance);
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balance);
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static void gst_v4l2_color_balance_set_value (GstColorBalance * balance,
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static void gst_v4l2_color_balance_set_value (GstColorBalance * balance,
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@ -40,44 +34,27 @@ static void gst_v4l2_color_balance_set_value (GstColorBalance * balance,
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static gint gst_v4l2_color_balance_get_value (GstColorBalance * balance,
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static gint gst_v4l2_color_balance_get_value (GstColorBalance * balance,
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GstColorBalanceChannel * channel);
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GstColorBalanceChannel * channel);
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static GstColorBalanceChannelClass *parent_class = NULL;
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GType
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GST_BOILERPLATE (GstV4l2ColorBalanceChannel,
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gst_v4l2_color_balance_channel_get_type (void)
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gst_v4l2_color_balance_channel,
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GstColorBalanceChannel, GST_TYPE_COLOR_BALANCE_CHANNEL);
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static void
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gst_v4l2_color_balance_channel_base_init (gpointer g_class)
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{
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{
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static GType gst_v4l2_color_balance_channel_type = 0;
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if (!gst_v4l2_color_balance_channel_type) {
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static const GTypeInfo v4l2_tuner_channel_info = {
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sizeof (GstV4l2ColorBalanceChannelClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_v4l2_color_balance_channel_class_init,
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NULL,
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NULL,
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sizeof (GstV4l2ColorBalanceChannel),
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0,
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(GInstanceInitFunc) gst_v4l2_color_balance_channel_init,
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NULL
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};
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gst_v4l2_color_balance_channel_type =
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g_type_register_static (GST_TYPE_COLOR_BALANCE_CHANNEL,
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"GstV4l2ColorBalanceChannel", &v4l2_tuner_channel_info, 0);
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}
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}
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return gst_v4l2_color_balance_channel_type;
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}
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static void
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static void
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gst_v4l2_color_balance_channel_class_init (GstV4l2ColorBalanceChannelClass *
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gst_v4l2_color_balance_channel_class_init (GstV4l2ColorBalanceChannelClass *
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klass)
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klass)
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{
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{
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parent_class = g_type_class_peek_parent (klass);
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}
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}
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static void
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static void
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gst_v4l2_color_balance_channel_init (GstV4l2ColorBalanceChannel * channel)
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gst_v4l2_color_balance_channel_init (GstV4l2ColorBalanceChannel * channel,
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GstV4l2ColorBalanceChannelClass * klass)
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{
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{
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channel->id = (guint32) - 1;
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channel->id = (guint32) - 1;
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}
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}
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@ -71,30 +71,33 @@ gst_v4l2_xoverlay_open (GstV4l2Element * v4l2element)
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/* we need a display, obviously */
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/* we need a display, obviously */
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if (!name || !(dpy = XOpenDisplay (name))) {
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if (!name || !(dpy = XOpenDisplay (name))) {
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GST_WARNING ("No $DISPLAY set or failed to open - no overlay");
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GST_WARNING_OBJECT (v4l2element,
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"No $DISPLAY set or failed to open - no overlay");
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return;
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return;
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}
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}
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/* First let's check that XVideo extension is available */
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/* First let's check that XVideo extension is available */
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if (!XQueryExtension (dpy, "XVideo", &i, &i, &i)) {
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if (!XQueryExtension (dpy, "XVideo", &i, &i, &i)) {
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GST_WARNING ("Xv extension not available - no overlay");
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GST_WARNING_OBJECT (v4l2element, "Xv extension not available - no overlay");
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XCloseDisplay (dpy);
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XCloseDisplay (dpy);
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return;
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return;
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}
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}
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/* find port that belongs to this device */
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/* find port that belongs to this device */
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if (XvQueryExtension (dpy, &ver, &rel, &req, &ev, &err) != Success) {
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if (XvQueryExtension (dpy, &ver, &rel, &req, &ev, &err) != Success) {
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GST_WARNING ("Xv extension not supported - no overlay");
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GST_WARNING_OBJECT (v4l2element, "Xv extension not supported - no overlay");
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XCloseDisplay (dpy);
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XCloseDisplay (dpy);
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return;
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return;
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}
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}
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if (XvQueryAdaptors (dpy, DefaultRootWindow (dpy), &anum, &ai) != Success) {
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if (XvQueryAdaptors (dpy, DefaultRootWindow (dpy), &anum, &ai) != Success) {
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GST_WARNING ("Failed to query Xv adaptors");
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GST_WARNING_OBJECT (v4l2element, "Failed to query Xv adaptors");
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XCloseDisplay (dpy);
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XCloseDisplay (dpy);
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return;
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return;
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}
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}
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if (fstat (v4l2element->video_fd, &s) < 0) {
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if (fstat (v4l2element->video_fd, &s) < 0) {
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GST_ERROR ("Failed to stat() file descriptor: %s", g_strerror (errno));
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GST_ELEMENT_ERROR (v4l2element, RESOURCE, GST_RESOURCE_ERROR_NOT_FOUND,
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(_("Cannot identify '%s': %d, %s\n"),
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v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
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XCloseDisplay (dpy);
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XCloseDisplay (dpy);
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return;
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return;
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}
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}
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@ -112,7 +115,7 @@ gst_v4l2_xoverlay_open (GstV4l2Element * v4l2element)
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XvFreeAdaptorInfo (ai);
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XvFreeAdaptorInfo (ai);
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if (id == 0) {
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if (id == 0) {
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GST_WARNING ("Did not find XvPortID for device - no overlay");
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GST_WARNING (v4l2element, "Did not find XvPortID for device - no overlay");
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XCloseDisplay (dpy);
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XCloseDisplay (dpy);
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return;
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return;
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}
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}
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@ -48,13 +48,14 @@ GST_DEBUG_CATEGORY_EXTERN (v4l2_debug);
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gboolean
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gboolean
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gst_v4l2_get_capabilities (GstV4l2Element * v4l2element)
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gst_v4l2_get_capabilities (GstV4l2Element * v4l2element)
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{
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{
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GST_DEBUG ("getting capabilities");
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GST_DEBUG_OBJECT (v4l2element, "getting capabilities");
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if (!GST_V4L2_IS_OPEN (v4l2element))
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if (!GST_V4L2_IS_OPEN (v4l2element))
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return FALSE;
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return FALSE;
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if (ioctl (v4l2element->video_fd, VIDIOC_QUERYCAP, &(v4l2element->vcap)) < 0) {
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if (ioctl (v4l2element->video_fd, VIDIOC_QUERYCAP, &(v4l2element->vcap)) < 0) {
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GST_ERROR_OBJECT (v4l2element, "Error getting %s capabilities: %s",
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GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS,
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v4l2element->videodev, g_strerror (errno));
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(_("Error getting capabilities '%s': %d, %s\n"),
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v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
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return FALSE;
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return FALSE;
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}
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}
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@ -74,7 +75,7 @@ gst_v4l2_fill_lists (GstV4l2Element * v4l2element)
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gint n;
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gint n;
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GstPadDirection dir = GST_PAD_UNKNOWN;
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GstPadDirection dir = GST_PAD_UNKNOWN;
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GST_DEBUG ("getting enumerations");
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GST_DEBUG_OBJECT (v4l2element, "getting enumerations");
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GST_V4L2_CHECK_OPEN (v4l2element);
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GST_V4L2_CHECK_OPEN (v4l2element);
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if (dir != GST_PAD_SINK) {
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if (dir != GST_PAD_SINK) {
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@ -242,7 +243,8 @@ gst_v4l2_fill_lists (GstV4l2Element * v4l2element)
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/* we only handle these for now */
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/* we only handle these for now */
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break;
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break;
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default:
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default:
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GST_DEBUG ("ControlID %s (%d) unhandled, FIXME", control.name, n);
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GST_DEBUG_OBJECT (v4l2element, "ControlID %s (%d) unhandled, FIXME",
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control.name, n);
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control.id++;
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control.id++;
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break;
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break;
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}
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}
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@ -305,7 +307,7 @@ gst_v4l2_fill_lists (GstV4l2Element * v4l2element)
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static void
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static void
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gst_v4l2_empty_lists (GstV4l2Element * v4l2element)
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gst_v4l2_empty_lists (GstV4l2Element * v4l2element)
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{
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{
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GST_DEBUG ("deleting enumerations");
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GST_DEBUG_OBJECT (v4l2element, "deleting enumerations");
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g_list_foreach (v4l2element->inputs, (GFunc) g_object_unref, NULL);
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g_list_foreach (v4l2element->inputs, (GFunc) g_object_unref, NULL);
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g_list_free (v4l2element->inputs);
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g_list_free (v4l2element->inputs);
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@ -381,7 +383,8 @@ gst_v4l2_open (GstV4l2Element * v4l2element)
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{
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{
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struct stat st;
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struct stat st;
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GST_DEBUG ("Trying to open device %s", v4l2element->videodev);
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GST_DEBUG_OBJECT (v4l2element, "Trying to open device %s",
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v4l2element->videodev);
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GST_V4L2_CHECK_NOT_OPEN (v4l2element);
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GST_V4L2_CHECK_NOT_OPEN (v4l2element);
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GST_V4L2_CHECK_NOT_ACTIVE (v4l2element);
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GST_V4L2_CHECK_NOT_ACTIVE (v4l2element);
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@ -391,12 +394,15 @@ gst_v4l2_open (GstV4l2Element * v4l2element)
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/* check if it is a device */
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/* check if it is a device */
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if (-1 == stat (v4l2element->videodev, &st)) {
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if (-1 == stat (v4l2element->videodev, &st)) {
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GST_ERROR ("Cannot identify '%s': %d, %s\n",
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GST_ELEMENT_ERROR (v4l2element, RESOURCE, NOT_FOUND,
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v4l2element->videodev, errno, strerror (errno));
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(_("Cannot identify '%s': %d, %s\n"),
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v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
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goto error;
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goto error;
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}
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}
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if (!S_ISCHR (st.st_mode)) {
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if (!S_ISCHR (st.st_mode)) {
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GST_ERROR ("%s is no device\n", v4l2element->videodev);
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GST_ELEMENT_ERROR (v4l2element, RESOURCE, NOT_FOUND,
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(_("It isn't a device '%s': %d, %s\n"),
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v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
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goto error;
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goto error;
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}
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}
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@ -460,7 +466,7 @@ error:
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gboolean
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gboolean
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gst_v4l2_close (GstV4l2Element * v4l2element)
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gst_v4l2_close (GstV4l2Element * v4l2element)
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{
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{
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GST_DEBUG ("Trying to close %s", v4l2element->videodev);
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GST_DEBUG_OBJECT (v4l2element, "Trying to close %s", v4l2element->videodev);
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GST_V4L2_CHECK_OPEN (v4l2element);
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GST_V4L2_CHECK_OPEN (v4l2element);
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GST_V4L2_CHECK_NOT_ACTIVE (v4l2element);
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GST_V4L2_CHECK_NOT_ACTIVE (v4l2element);
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@ -484,7 +490,7 @@ gst_v4l2_close (GstV4l2Element * v4l2element)
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gboolean
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gboolean
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gst_v4l2_get_norm (GstV4l2Element * v4l2element, v4l2_std_id * norm)
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gst_v4l2_get_norm (GstV4l2Element * v4l2element, v4l2_std_id * norm)
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{
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{
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GST_DEBUG ("getting norm");
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GST_DEBUG_OBJECT (v4l2element, "getting norm");
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if (!GST_V4L2_IS_OPEN (v4l2element))
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if (!GST_V4L2_IS_OPEN (v4l2element))
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return FALSE;
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return FALSE;
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@ -508,7 +514,7 @@ gst_v4l2_get_norm (GstV4l2Element * v4l2element, v4l2_std_id * norm)
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gboolean
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gboolean
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gst_v4l2_set_norm (GstV4l2Element * v4l2element, v4l2_std_id norm)
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gst_v4l2_set_norm (GstV4l2Element * v4l2element, v4l2_std_id norm)
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{
|
{
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GST_DEBUG ("trying to set norm to %llx", norm);
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GST_DEBUG_OBJECT (v4l2element, "trying to set norm to %llx", norm);
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if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
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return FALSE;
|
return FALSE;
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if (!GST_V4L2_IS_ACTIVE (v4l2element))
|
if (!GST_V4L2_IS_ACTIVE (v4l2element))
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@ -536,7 +542,7 @@ gst_v4l2_get_input (GstV4l2Element * v4l2element, gint * input)
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||||||
{
|
{
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gint n;
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gint n;
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|
|
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GST_DEBUG ("trying to get input");
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GST_DEBUG_OBJECT (v4l2element, "trying to get input");
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if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
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return FALSE;
|
return FALSE;
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@ -562,7 +568,7 @@ gst_v4l2_get_input (GstV4l2Element * v4l2element, gint * input)
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gboolean
|
gboolean
|
||||||
gst_v4l2_set_input (GstV4l2Element * v4l2element, gint input)
|
gst_v4l2_set_input (GstV4l2Element * v4l2element, gint input)
|
||||||
{
|
{
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GST_DEBUG ("trying to set input to %d", input);
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GST_DEBUG_OBJECT (v4l2element, "trying to set input to %d", input);
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if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
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return FALSE;
|
return FALSE;
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if (!GST_V4L2_IS_ACTIVE (v4l2element))
|
if (!GST_V4L2_IS_ACTIVE (v4l2element))
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@ -589,7 +595,7 @@ gst_v4l2_get_output (GstV4l2Element * v4l2element, gint * output)
|
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{
|
{
|
||||||
gint n;
|
gint n;
|
||||||
|
|
||||||
GST_DEBUG ("trying to get output");
|
GST_DEBUG_OBJECT (v4l2element, "trying to get output");
|
||||||
if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
|
||||||
return FALSE;
|
return FALSE;
|
||||||
|
|
||||||
|
@ -615,7 +621,7 @@ gst_v4l2_get_output (GstV4l2Element * v4l2element, gint * output)
|
||||||
gboolean
|
gboolean
|
||||||
gst_v4l2_set_output (GstV4l2Element * v4l2element, gint output)
|
gst_v4l2_set_output (GstV4l2Element * v4l2element, gint output)
|
||||||
{
|
{
|
||||||
GST_DEBUG ("trying to set output to %d", output);
|
GST_DEBUG_OBJECT (v4l2element, "trying to set output to %d", output);
|
||||||
if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
|
||||||
return FALSE;
|
return FALSE;
|
||||||
if (!GST_V4L2_IS_ACTIVE (v4l2element))
|
if (!GST_V4L2_IS_ACTIVE (v4l2element))
|
||||||
|
@ -645,7 +651,7 @@ gst_v4l2_get_frequency (GstV4l2Element * v4l2element,
|
||||||
struct v4l2_frequency freq;
|
struct v4l2_frequency freq;
|
||||||
GstTunerChannel *channel;
|
GstTunerChannel *channel;
|
||||||
|
|
||||||
GST_DEBUG ("getting current tuner frequency");
|
GST_DEBUG_OBJECT (v4l2element, "getting current tuner frequency");
|
||||||
if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
|
||||||
return FALSE;
|
return FALSE;
|
||||||
|
|
||||||
|
@ -678,7 +684,8 @@ gst_v4l2_set_frequency (GstV4l2Element * v4l2element,
|
||||||
struct v4l2_frequency freq;
|
struct v4l2_frequency freq;
|
||||||
GstTunerChannel *channel;
|
GstTunerChannel *channel;
|
||||||
|
|
||||||
GST_DEBUG ("setting current tuner frequency to %lu", frequency);
|
GST_DEBUG_OBJECT (v4l2element, "setting current tuner frequency to %lu",
|
||||||
|
frequency);
|
||||||
if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
|
||||||
return FALSE;
|
return FALSE;
|
||||||
if (!GST_V4L2_IS_ACTIVE (v4l2element))
|
if (!GST_V4L2_IS_ACTIVE (v4l2element))
|
||||||
|
@ -714,7 +721,7 @@ gst_v4l2_signal_strength (GstV4l2Element * v4l2element,
|
||||||
{
|
{
|
||||||
struct v4l2_tuner tuner;
|
struct v4l2_tuner tuner;
|
||||||
|
|
||||||
GST_DEBUG ("trying to get signal strength");
|
GST_DEBUG_OBJECT (v4l2element, "trying to get signal strength");
|
||||||
if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
|
||||||
return FALSE;
|
return FALSE;
|
||||||
|
|
||||||
|
@ -747,7 +754,8 @@ gst_v4l2_get_attribute (GstV4l2Element * v4l2element,
|
||||||
if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
|
||||||
return FALSE;
|
return FALSE;
|
||||||
|
|
||||||
GST_DEBUG ("getting value of attribute %d", attribute_num);
|
GST_DEBUG_OBJECT (v4l2element, "getting value of attribute %d",
|
||||||
|
attribute_num);
|
||||||
|
|
||||||
control.id = attribute_num;
|
control.id = attribute_num;
|
||||||
|
|
||||||
|
@ -779,7 +787,8 @@ gst_v4l2_set_attribute (GstV4l2Element * v4l2element,
|
||||||
if (!GST_V4L2_IS_OPEN (v4l2element))
|
if (!GST_V4L2_IS_OPEN (v4l2element))
|
||||||
return FALSE;
|
return FALSE;
|
||||||
|
|
||||||
GST_DEBUG ("setting value of attribute %d to %d", attribute_num, value);
|
GST_DEBUG_OBJECT (v4l2element, "setting value of attribute %d to %d",
|
||||||
|
attribute_num, value);
|
||||||
|
|
||||||
control.id = attribute_num;
|
control.id = attribute_num;
|
||||||
control.value = value;
|
control.value = value;
|
||||||
|
|
241
tests/icles/v4l2src-test.c
Normal file
241
tests/icles/v4l2src-test.c
Normal file
|
@ -0,0 +1,241 @@
|
||||||
|
|
||||||
|
#include <gst/gst.h>
|
||||||
|
#include <gst/interfaces/tuner.h>
|
||||||
|
#include <gst/interfaces/colorbalance.h>
|
||||||
|
|
||||||
|
GstElement *pipeline, *source, *sink;
|
||||||
|
GMainLoop *loop;
|
||||||
|
volatile int exit_read = 0;
|
||||||
|
|
||||||
|
void
|
||||||
|
print_options ()
|
||||||
|
{
|
||||||
|
printf
|
||||||
|
("\nLaunch \"./v4l2src-test.c devname\" to choose the device (default: /dev/video0)\n");
|
||||||
|
printf ("\nf - to change the fequency\n");
|
||||||
|
printf ("i - to change the input\n");
|
||||||
|
printf ("c - list color balance\n");
|
||||||
|
printf ("e - to exit\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
run_options (char opt)
|
||||||
|
{
|
||||||
|
switch (opt) {
|
||||||
|
case 'f':
|
||||||
|
{
|
||||||
|
GstTuner *tuner = GST_TUNER (source);
|
||||||
|
GstTunerChannel *channel = gst_tuner_get_channel (tuner);
|
||||||
|
guint freq;
|
||||||
|
|
||||||
|
printf ("type the new frequency (current = %lu) (-1 to cancel): ",
|
||||||
|
gst_tuner_get_frequency (tuner, channel));
|
||||||
|
scanf ("%u", &freq);
|
||||||
|
if (freq != -1)
|
||||||
|
gst_tuner_set_frequency (tuner, channel, freq);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 'i':
|
||||||
|
{
|
||||||
|
GstTuner *tuner = GST_TUNER (source);
|
||||||
|
const GList *item, *list;
|
||||||
|
const GstTunerChannel *current_channel;
|
||||||
|
GstTunerChannel *channel = NULL;
|
||||||
|
gint index, next_channel;
|
||||||
|
|
||||||
|
list = gst_tuner_list_channels (tuner);
|
||||||
|
current_channel = gst_tuner_get_channel (tuner);
|
||||||
|
|
||||||
|
printf ("\nlist of inputs:\n");
|
||||||
|
for (item = list, index = 0; item != NULL; item = item->next, ++index) {
|
||||||
|
channel = item->data;
|
||||||
|
if (current_channel == channel) {
|
||||||
|
printf (" * %u - %s\n", index, channel->label);
|
||||||
|
} else {
|
||||||
|
printf (" %u - %s\n", index, channel->label);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
printf ("\ntype the number of input you want (-1 to cancel): ");
|
||||||
|
scanf ("%d", &next_channel);
|
||||||
|
if (next_channel < 0 || index <= next_channel) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
for (item = list, index = 0; item != NULL && index <= next_channel;
|
||||||
|
item = item->next, ++index) {
|
||||||
|
channel = item->data;
|
||||||
|
}
|
||||||
|
if (channel)
|
||||||
|
gst_tuner_set_channel (tuner, channel);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 'e':
|
||||||
|
gst_element_set_state (pipeline, GST_STATE_NULL);
|
||||||
|
g_main_loop_quit (loop);
|
||||||
|
printf ("Bye\n");
|
||||||
|
g_thread_exit (0);
|
||||||
|
break;
|
||||||
|
case 'c':
|
||||||
|
{
|
||||||
|
GstColorBalance *balance = GST_COLOR_BALANCE (source);
|
||||||
|
const GList *controls = gst_color_balance_list_channels (balance);
|
||||||
|
GstColorBalanceChannel *channel;
|
||||||
|
const GList *item;
|
||||||
|
gint index, new_value;
|
||||||
|
|
||||||
|
if (controls) {
|
||||||
|
printf ("\nlist of controls:\n");
|
||||||
|
for (item = controls, index = 0; item != NULL;
|
||||||
|
item = item->next, ++index) {
|
||||||
|
channel = item->data;
|
||||||
|
printf (" %u - %s (%d - %d) = %d\n", index, channel->label,
|
||||||
|
channel->min_value, channel->max_value,
|
||||||
|
gst_color_balance_get_value (balance, channel));
|
||||||
|
}
|
||||||
|
printf ("\ntype the number of color control you want (-1 to cancel): ");
|
||||||
|
scanf ("%d", &new_value);
|
||||||
|
if (new_value == -1)
|
||||||
|
break;
|
||||||
|
for (item = controls, index = 0; item != NULL && index <= new_value;
|
||||||
|
item = item->next, ++index) {
|
||||||
|
channel = item->data;
|
||||||
|
}
|
||||||
|
printf (" %u - %s (%d - %d) = %d, type the new value: ", index,
|
||||||
|
channel->label, channel->min_value, channel->max_value,
|
||||||
|
gst_color_balance_get_value (balance, channel));
|
||||||
|
scanf ("%d", &new_value);
|
||||||
|
if (new_value == -1)
|
||||||
|
break;
|
||||||
|
gst_color_balance_set_value (balance, channel, new_value);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
if (opt != 10)
|
||||||
|
printf ("error: invalid option %c", opt);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
gpointer
|
||||||
|
read_user (gpointer data)
|
||||||
|
{
|
||||||
|
|
||||||
|
char opt;
|
||||||
|
|
||||||
|
while (!exit_read) {
|
||||||
|
|
||||||
|
print_options ();
|
||||||
|
|
||||||
|
opt = getchar ();
|
||||||
|
if (exit_read) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
run_options (opt);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
my_bus_callback (GstBus * bus, GstMessage * message, gpointer data)
|
||||||
|
{
|
||||||
|
|
||||||
|
switch (GST_MESSAGE_TYPE (message)) {
|
||||||
|
case GST_MESSAGE_ERROR:{
|
||||||
|
GError *err;
|
||||||
|
gchar *debug;
|
||||||
|
|
||||||
|
gst_message_parse_error (message, &err, &debug);
|
||||||
|
g_print ("Error: %s - element %s\n", err->message,
|
||||||
|
gst_element_get_name (message->src));
|
||||||
|
g_error_free (err);
|
||||||
|
g_free (debug);
|
||||||
|
|
||||||
|
printf ("presse any key to exit\n");
|
||||||
|
exit_read = 1;
|
||||||
|
g_main_loop_quit (loop);
|
||||||
|
break;
|
||||||
|
case GST_MESSAGE_EOS:
|
||||||
|
/* end-of-stream */
|
||||||
|
printf ("presse any key to exit\n");
|
||||||
|
exit_read = 1;
|
||||||
|
g_main_loop_quit (loop);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, char *argv[])
|
||||||
|
{
|
||||||
|
|
||||||
|
GThread *input_thread;
|
||||||
|
|
||||||
|
/* init */
|
||||||
|
gst_init (&argc, &argv);
|
||||||
|
|
||||||
|
/* create elements */
|
||||||
|
if (!(pipeline = gst_pipeline_new ("my_pipeline"))) {
|
||||||
|
fprintf (stderr, "error: gst_pipeline_new return NULL");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!(source = gst_element_factory_make ("v4l2src", NULL))) {
|
||||||
|
fprintf (stderr,
|
||||||
|
"error: gst_element_factory_make (\"v4l2src\", NULL) return NULL");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!(sink = gst_element_factory_make ("xvimagesink", NULL))) {
|
||||||
|
fprintf (stderr,
|
||||||
|
"error: gst_element_factory_make (\"xvimagesink\", NULL) return NULL");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (argv < 2) {
|
||||||
|
g_object_set (source, "device", "/dev/video0", NULL);
|
||||||
|
} else {
|
||||||
|
g_object_set (source, "device", argv[1], NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* you would normally check that the elements were created properly */
|
||||||
|
gst_bus_add_watch (gst_pipeline_get_bus (GST_PIPELINE (pipeline)),
|
||||||
|
my_bus_callback, NULL);
|
||||||
|
|
||||||
|
/* put together a pipeline */
|
||||||
|
gst_bin_add_many (GST_BIN (pipeline), source, sink, NULL);
|
||||||
|
gst_element_link_pads (source, "src", sink, "sink");
|
||||||
|
|
||||||
|
/* start the pipeline */
|
||||||
|
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
|
||||||
|
loop = g_main_loop_new (NULL, FALSE);
|
||||||
|
|
||||||
|
if (!(input_thread = g_thread_create (read_user, source, TRUE, NULL))) {
|
||||||
|
fprintf (stderr, "error: g_thread_create return NULL");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (argv < 2)
|
||||||
|
printf
|
||||||
|
("\nOpening /dev/video0. Launch ./v4l2src-test.c devname to try another one\n");
|
||||||
|
|
||||||
|
|
||||||
|
g_main_loop_run (loop);
|
||||||
|
g_thread_join (input_thread);
|
||||||
|
|
||||||
|
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
|
||||||
|
|
||||||
|
gst_object_unref (pipeline);
|
||||||
|
|
||||||
|
gst_deinit ();
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
}
|
Loading…
Reference in a new issue