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Few improvements to move to good.

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Original commit message from CVS:
Few improvements to move to good.
This commit is contained in:
Edgard Lima 2006-05-01 21:37:51 +00:00
parent 9e8733719f
commit 3281a63637
7 changed files with 338 additions and 77 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2006-05-01 Edgard Lima <edgard.lima@indt.org.br>
* sys/v4l2/Makefile.am:
* sys/v4l2/gstv4l2colorbalance.c:
* sys/v4l2/gstv4l2xoverlay.c:
* sys/v4l2/v4l2_calls.c:
* tests/icles/Makefile.am:
* tests/icles/v4l2src-test.c:
Few improvements to move to good.
2006-05-01 Thomas Vander Stichele <thomas at apestaart dot org>
* configure.ac:

38
sys/v4l2/Makefile.am
View file

@ -8,23 +8,29 @@ xv_source =
xv_libs =
endif
libgstvideo4linux2_la_SOURCES = \
gstv4l2.c \
gstv4l2colorbalance.c \
gstv4l2element.c \
gstv4l2src.c \
gstv4l2tuner.c \
v4l2_calls.c \
v4l2src_calls.c $(xv_source)
libgstvideo4linux2_la_SOURCES = gstv4l2.c \
gstv4l2colorbalance.c \
gstv4l2element.c \
gstv4l2src.c \
gstv4l2tuner.c \
v4l2_calls.c \
v4l2src_calls.c \
$(xv_source)
libgstvideo4linux2_la_CFLAGS = $(GST_CFLAGS) $(X_CFLAGS) $(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstvideo4linux2_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) \
$(GST_BASE_CFLAGS) \
$(GST_CFLAGS) \
$(X_CFLAGS)
libgstvideo4linux2_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstvideo4linux2_la_LIBADD = \
-lgstinterfaces-$(GST_MAJORMINOR) \
$(GST_BASE_LIBS) $(GST_LIBS) $(GST_PLUGINS_BASE_LIBS) $(xv_libs)
libgstvideo4linux2_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) \
$(GST_BASE_LIBS) \
$(GST_LIBS) \
$(xv_libs) \
-lgstinterfaces-$(GST_MAJORMINOR)
noinst_HEADERS = gstv4l2element.h v4l2_calls.h \
gstv4l2src.h v4l2src_calls.h \
gstv4l2tuner.h gstv4l2xoverlay.h \
gstv4l2colorbalance.h
gstv4l2src.h v4l2src_calls.h \
gstv4l2tuner.h gstv4l2xoverlay.h \
gstv4l2colorbalance.h

43
sys/v4l2/gstv4l2colorbalance.c
View file

@ -27,12 +27,6 @@
#include "gstv4l2colorbalance.h"
#include "gstv4l2element.h"
static void
gst_v4l2_color_balance_channel_class_init (GstV4l2ColorBalanceChannelClass *
klass);
static void gst_v4l2_color_balance_channel_init (GstV4l2ColorBalanceChannel *
channel);
static const GList *gst_v4l2_color_balance_list_channels (GstColorBalance *
balance);
static void gst_v4l2_color_balance_set_value (GstColorBalance * balance,
@ -40,44 +34,27 @@ static void gst_v4l2_color_balance_set_value (GstColorBalance * balance,
static gint gst_v4l2_color_balance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * channel);
static GstColorBalanceChannelClass *parent_class = NULL;
GType
gst_v4l2_color_balance_channel_get_type (void)
GST_BOILERPLATE (GstV4l2ColorBalanceChannel,
gst_v4l2_color_balance_channel,
GstColorBalanceChannel, GST_TYPE_COLOR_BALANCE_CHANNEL);
static void
gst_v4l2_color_balance_channel_base_init (gpointer g_class)
{
static GType gst_v4l2_color_balance_channel_type = 0;
if (!gst_v4l2_color_balance_channel_type) {
static const GTypeInfo v4l2_tuner_channel_info = {
sizeof (GstV4l2ColorBalanceChannelClass),
NULL,
NULL,
(GClassInitFunc) gst_v4l2_color_balance_channel_class_init,
NULL,
NULL,
sizeof (GstV4l2ColorBalanceChannel),
0,
(GInstanceInitFunc) gst_v4l2_color_balance_channel_init,
NULL
};
gst_v4l2_color_balance_channel_type =
g_type_register_static (GST_TYPE_COLOR_BALANCE_CHANNEL,
"GstV4l2ColorBalanceChannel", &v4l2_tuner_channel_info, 0);
}
return gst_v4l2_color_balance_channel_type;
}
static void
gst_v4l2_color_balance_channel_class_init (GstV4l2ColorBalanceChannelClass *
klass)
{
parent_class = g_type_class_peek_parent (klass);
}
static void
gst_v4l2_color_balance_channel_init (GstV4l2ColorBalanceChannel * channel)
gst_v4l2_color_balance_channel_init (GstV4l2ColorBalanceChannel * channel,
GstV4l2ColorBalanceChannelClass * klass)
{
channel->id = (guint32) - 1;
}

15
sys/v4l2/gstv4l2xoverlay.c
View file

@ -71,30 +71,33 @@ gst_v4l2_xoverlay_open (GstV4l2Element * v4l2element)
/* we need a display, obviously */
if (!name || !(dpy = XOpenDisplay (name))) {
GST_WARNING ("No $DISPLAY set or failed to open - no overlay");
GST_WARNING_OBJECT (v4l2element,
"No $DISPLAY set or failed to open - no overlay");
return;
}
/* First let's check that XVideo extension is available */
if (!XQueryExtension (dpy, "XVideo", &i, &i, &i)) {
GST_WARNING ("Xv extension not available - no overlay");
GST_WARNING_OBJECT (v4l2element, "Xv extension not available - no overlay");
XCloseDisplay (dpy);
return;
}
/* find port that belongs to this device */
if (XvQueryExtension (dpy, &ver, &rel, &req, &ev, &err) != Success) {
GST_WARNING ("Xv extension not supported - no overlay");
GST_WARNING_OBJECT (v4l2element, "Xv extension not supported - no overlay");
XCloseDisplay (dpy);
return;
}
if (XvQueryAdaptors (dpy, DefaultRootWindow (dpy), &anum, &ai) != Success) {
GST_WARNING ("Failed to query Xv adaptors");
GST_WARNING_OBJECT (v4l2element, "Failed to query Xv adaptors");
XCloseDisplay (dpy);
return;
}
if (fstat (v4l2element->video_fd, &s) < 0) {
GST_ERROR ("Failed to stat() file descriptor: %s", g_strerror (errno));
GST_ELEMENT_ERROR (v4l2element, RESOURCE, GST_RESOURCE_ERROR_NOT_FOUND,
(_("Cannot identify '%s': %d, %s\n"),
v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
XCloseDisplay (dpy);
return;
}
@ -112,7 +115,7 @@ gst_v4l2_xoverlay_open (GstV4l2Element * v4l2element)
XvFreeAdaptorInfo (ai);
if (id == 0) {
GST_WARNING ("Did not find XvPortID for device - no overlay");
GST_WARNING (v4l2element, "Did not find XvPortID for device - no overlay");
XCloseDisplay (dpy);
return;
}

53
sys/v4l2/v4l2_calls.c
View file

@ -48,13 +48,14 @@ GST_DEBUG_CATEGORY_EXTERN (v4l2_debug);
gboolean
gst_v4l2_get_capabilities (GstV4l2Element * v4l2element)
{
GST_DEBUG ("getting capabilities");
GST_DEBUG_OBJECT (v4l2element, "getting capabilities");
if (!GST_V4L2_IS_OPEN (v4l2element))
return FALSE;
if (ioctl (v4l2element->video_fd, VIDIOC_QUERYCAP, &(v4l2element->vcap)) < 0) {
GST_ERROR_OBJECT (v4l2element, "Error getting %s capabilities: %s",
v4l2element->videodev, g_strerror (errno));
GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS,
(_("Error getting capabilities '%s': %d, %s\n"),
v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
return FALSE;
}
@ -74,7 +75,7 @@ gst_v4l2_fill_lists (GstV4l2Element * v4l2element)
gint n;
GstPadDirection dir = GST_PAD_UNKNOWN;
GST_DEBUG ("getting enumerations");
GST_DEBUG_OBJECT (v4l2element, "getting enumerations");
GST_V4L2_CHECK_OPEN (v4l2element);
if (dir != GST_PAD_SINK) {
@ -242,7 +243,8 @@ gst_v4l2_fill_lists (GstV4l2Element * v4l2element)
/* we only handle these for now */
break;
default:
GST_DEBUG ("ControlID %s (%d) unhandled, FIXME", control.name, n);
GST_DEBUG_OBJECT (v4l2element, "ControlID %s (%d) unhandled, FIXME",
control.name, n);
control.id++;
break;
}
@ -305,7 +307,7 @@ gst_v4l2_fill_lists (GstV4l2Element * v4l2element)
static void
gst_v4l2_empty_lists (GstV4l2Element * v4l2element)
{
GST_DEBUG ("deleting enumerations");
GST_DEBUG_OBJECT (v4l2element, "deleting enumerations");
g_list_foreach (v4l2element->inputs, (GFunc) g_object_unref, NULL);
g_list_free (v4l2element->inputs);
@ -381,7 +383,8 @@ gst_v4l2_open (GstV4l2Element * v4l2element)
{
struct stat st;
GST_DEBUG ("Trying to open device %s", v4l2element->videodev);
GST_DEBUG_OBJECT (v4l2element, "Trying to open device %s",
v4l2element->videodev);
GST_V4L2_CHECK_NOT_OPEN (v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE (v4l2element);
@ -391,12 +394,15 @@ gst_v4l2_open (GstV4l2Element * v4l2element)
/* check if it is a device */
if (-1 == stat (v4l2element->videodev, &st)) {
GST_ERROR ("Cannot identify '%s': %d, %s\n",
v4l2element->videodev, errno, strerror (errno));
GST_ELEMENT_ERROR (v4l2element, RESOURCE, NOT_FOUND,
(_("Cannot identify '%s': %d, %s\n"),
v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
goto error;
}
if (!S_ISCHR (st.st_mode)) {
GST_ERROR ("%s is no device\n", v4l2element->videodev);
GST_ELEMENT_ERROR (v4l2element, RESOURCE, NOT_FOUND,
(_("It isn't a device '%s': %d, %s\n"),
v4l2element->videodev, errno, strerror (errno)), GST_ERROR_SYSTEM);
goto error;
}
@ -460,7 +466,7 @@ error:
gboolean
gst_v4l2_close (GstV4l2Element * v4l2element)
{
GST_DEBUG ("Trying to close %s", v4l2element->videodev);
GST_DEBUG_OBJECT (v4l2element, "Trying to close %s", v4l2element->videodev);
GST_V4L2_CHECK_OPEN (v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE (v4l2element);
@ -484,7 +490,7 @@ gst_v4l2_close (GstV4l2Element * v4l2element)
gboolean
gst_v4l2_get_norm (GstV4l2Element * v4l2element, v4l2_std_id * norm)
{
GST_DEBUG ("getting norm");
GST_DEBUG_OBJECT (v4l2element, "getting norm");
if (!GST_V4L2_IS_OPEN (v4l2element))
return FALSE;
@ -508,7 +514,7 @@ gst_v4l2_get_norm (GstV4l2Element * v4l2element, v4l2_std_id * norm)
gboolean
gst_v4l2_set_norm (GstV4l2Element * v4l2element, v4l2_std_id norm)
{
GST_DEBUG ("trying to set norm to %llx", norm);
GST_DEBUG_OBJECT (v4l2element, "trying to set norm to %llx", norm);
if (!GST_V4L2_IS_OPEN (v4l2element))
return FALSE;
if (!GST_V4L2_IS_ACTIVE (v4l2element))
@ -536,7 +542,7 @@ gst_v4l2_get_input (GstV4l2Element * v4l2element, gint * input)
{
gint n;
GST_DEBUG ("trying to get input");
GST_DEBUG_OBJECT (v4l2element, "trying to get input");
if (!GST_V4L2_IS_OPEN (v4l2element))
return FALSE;
@ -562,7 +568,7 @@ gst_v4l2_get_input (GstV4l2Element * v4l2element, gint * input)
gboolean
gst_v4l2_set_input (GstV4l2Element * v4l2element, gint input)
{
GST_DEBUG ("trying to set input to %d", input);
GST_DEBUG_OBJECT (v4l2element, "trying to set input to %d", input);
if (!GST_V4L2_IS_OPEN (v4l2element))
return FALSE;
if (!GST_V4L2_IS_ACTIVE (v4l2element))
@ -589,7 +595,7 @@ gst_v4l2_get_output (GstV4l2Element * v4l2element, gint * output)
{
gint n;
GST_DEBUG ("trying to get output");
GST_DEBUG_OBJECT (v4l2element, "trying to get output");
if (!GST_V4L2_IS_OPEN (v4l2element))
return FALSE;
@ -615,7 +621,7 @@ gst_v4l2_get_output (GstV4l2Element * v4l2element, gint * output)
gboolean
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))
return FALSE;
if (!GST_V4L2_IS_ACTIVE (v4l2element))
@ -645,7 +651,7 @@ gst_v4l2_get_frequency (GstV4l2Element * v4l2element,
struct v4l2_frequency freq;
GstTunerChannel *channel;
GST_DEBUG ("getting current tuner frequency");
GST_DEBUG_OBJECT (v4l2element, "getting current tuner frequency");
if (!GST_V4L2_IS_OPEN (v4l2element))
return FALSE;
@ -678,7 +684,8 @@ gst_v4l2_set_frequency (GstV4l2Element * v4l2element,
struct v4l2_frequency freq;
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))
return FALSE;
if (!GST_V4L2_IS_ACTIVE (v4l2element))
@ -714,7 +721,7 @@ gst_v4l2_signal_strength (GstV4l2Element * v4l2element,
{
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))
return FALSE;
@ -747,7 +754,8 @@ gst_v4l2_get_attribute (GstV4l2Element * v4l2element,
if (!GST_V4L2_IS_OPEN (v4l2element))
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;
@ -779,7 +787,8 @@ gst_v4l2_set_attribute (GstV4l2Element * v4l2element,
if (!GST_V4L2_IS_OPEN (v4l2element))
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.value = value;

15
tests/icles/Makefile.am
View file

@ -0,0 +1,15 @@
if USE_GST_V4L2
GST_V4L2_TESTS = v4l2src-test
v4l2src_test_SOURCES = v4l2src-test.c
v4l2src_test_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS)
v4l2src_test_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -lgstinterfaces-$(GST_MAJORMINOR)
else
GST_V4L2_TESTS =
endif
noinst_PROGRAMS = $(GST_V4L2_TESTS)

241
tests/icles/v4l2src-test.c Normal file
View 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;
}