gstreamer/sys/v4l/gstv4lelement.c

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/* GStreamer
*
* gstv4lelement.c: base class for V4L elements
*
* Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <gst/interfaces/propertyprobe.h>
#ifdef HAVE_GUDEV
#include <gudev/gudev.h>
#endif
#include "v4l_calls.h"
#include "gstv4ltuner.h"
#ifdef HAVE_XVIDEO
#include "gstv4lxoverlay.h"
#endif
#include "gstv4lcolorbalance.h"
enum
{
PROP_0,
PROP_DEVICE,
PROP_DEVICE_NAME,
PROP_FLAGS
};
GST_DEBUG_CATEGORY (v4lelement_debug);
#define GST_CAT_DEFAULT v4lelement_debug
static void gst_v4lelement_init_interfaces (GType type);
GST_BOILERPLATE_FULL (GstV4lElement, gst_v4lelement, GstPushSrc,
GST_TYPE_PUSH_SRC, gst_v4lelement_init_interfaces);
static void gst_v4lelement_dispose (GObject * object);
static void gst_v4lelement_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_v4lelement_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
/* element methods */
static GstStateChangeReturn gst_v4lelement_change_state (GstElement * element,
GstStateChange transition);
static gboolean
gst_v4l_iface_supported (GstImplementsInterface * iface, GType iface_type)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (iface);
#ifdef HAVE_XVIDEO
g_assert (iface_type == GST_TYPE_TUNER ||
iface_type == GST_TYPE_X_OVERLAY || iface_type == GST_TYPE_COLOR_BALANCE);
#else
g_assert (iface_type == GST_TYPE_TUNER ||
iface_type == GST_TYPE_COLOR_BALANCE);
#endif
if (v4lelement->video_fd == -1)
return FALSE;
#ifdef HAVE_XVIDEO
if (iface_type == GST_TYPE_X_OVERLAY && !GST_V4L_IS_OVERLAY (v4lelement))
return FALSE;
#endif
return TRUE;
}
static void
gst_v4l_interface_init (GstImplementsInterfaceClass * klass)
{
/* default virtual functions */
klass->supported = gst_v4l_iface_supported;
}
static const GList *
gst_v4l_probe_get_properties (GstPropertyProbe * probe)
{
GObjectClass *klass = G_OBJECT_GET_CLASS (probe);
static GList *list = NULL;
if (!list) {
list = g_list_append (NULL, g_object_class_find_property (klass, "device"));
}
return list;
}
static gboolean init = FALSE;
static GList *devices = NULL;
#ifdef HAVE_GUDEV
static gboolean
gst_v4l_class_probe_devices_with_udev (GstV4lElementClass * klass,
gboolean check)
{
GUdevClient *client;
GList *item;
if (!check) {
while (devices) {
gchar *device = devices->data;
devices = g_list_remove (devices, device);
g_free (device);
}
GST_INFO ("Enumerating video4linux devices from udev");
client = g_udev_client_new (NULL);
if (!client) {
GST_WARNING ("Failed to initialize gudev client");
goto finish;
}
item = g_udev_client_query_by_subsystem (client, "video4linux");
while (item) {
GUdevDevice *device = item->data;
gchar *devnode = g_strdup (g_udev_device_get_device_file (device));
gint api = g_udev_device_get_property_as_int (device, "ID_V4L_VERSION");
GST_INFO ("Found new device: %s, API: %d", devnode, api);
/* Append v4l1 devices only. If api is 0 probably v4l_id has
been stripped out of the current udev installation, append
anyway */
if (api == 0) {
GST_WARNING
("Couldn't retrieve ID_V4L_VERSION, silly udev installation?");
}
if ((api == 1 || api == 0)) {
devices = g_list_append (devices, devnode);
} else {
g_free (devnode);
}
g_object_unref (device);
item = item->next;
}
g_list_free (item);
init = TRUE;
}
finish:
if (client) {
g_object_unref (client);
}
klass->devices = devices;
return init;
}
#endif /* HAVE_GUDEV */
static gboolean
gst_v4l_class_probe_devices (GstV4lElementClass * klass, gboolean check)
{
if (!check) {
gchar *dev_base[] = { "/dev/video", "/dev/v4l/video", NULL };
gint base, n, fd;
while (devices) {
gchar *device = devices->data;
devices = g_list_remove (devices, device);
g_free (device);
}
/* detect /dev entries */
for (n = 0; n < 64; n++) {
for (base = 0; dev_base[base] != NULL; base++) {
struct stat s;
gchar *device = g_strdup_printf ("%s%d", dev_base[base], n);
/* does the /dev/ entry exist at all? */
if (stat (device, &s) == 0) {
/* yes: is a device attached? */
if ((fd = open (device, O_RDONLY)) > 0 || errno == EBUSY) {
if (fd > 0)
close (fd);
devices = g_list_append (devices, device);
break;
}
}
g_free (device);
}
}
init = TRUE;
}
klass->devices = devices;
return init;
}
static void
gst_v4l_probe_probe_property (GstPropertyProbe * probe,
guint prop_id, const GParamSpec * pspec)
{
GstV4lElementClass *klass = GST_V4LELEMENT_GET_CLASS (probe);
switch (prop_id) {
case PROP_DEVICE:
#ifdef HAVE_GUDEV
if (!gst_v4l_class_probe_devices_with_udev (klass, FALSE))
gst_v4l_class_probe_devices (klass, FALSE);
#else /* !HAVE_GUDEV */
gst_v4l_class_probe_devices (klass, FALSE);
#endif /* HAVE_GUDEV */
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
break;
}
}
static gboolean
gst_v4l_probe_needs_probe (GstPropertyProbe * probe,
guint prop_id, const GParamSpec * pspec)
{
GstV4lElementClass *klass = GST_V4LELEMENT_GET_CLASS (probe);
gboolean ret = FALSE;
switch (prop_id) {
case PROP_DEVICE:
#ifdef HAVE_GUDEV
ret = !gst_v4l_class_probe_devices_with_udev (klass, FALSE);
#else /* !HAVE_GUDEV */
ret = !gst_v4l_class_probe_devices (klass, TRUE);
#endif /* HAVE_GUDEV */
ret = !gst_v4l_class_probe_devices (klass, TRUE);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
break;
}
return ret;
}
static GValueArray *
gst_v4l_class_list_devices (GstV4lElementClass * klass)
{
GValueArray *array;
GValue value = { 0 };
GList *item;
if (!klass->devices)
return NULL;
array = g_value_array_new (g_list_length (klass->devices));
item = klass->devices;
g_value_init (&value, G_TYPE_STRING);
while (item) {
gchar *device = item->data;
g_value_set_string (&value, device);
g_value_array_append (array, &value);
item = item->next;
}
g_value_unset (&value);
return array;
}
static GValueArray *
gst_v4l_probe_get_values (GstPropertyProbe * probe,
guint prop_id, const GParamSpec * pspec)
{
GstV4lElementClass *klass = GST_V4LELEMENT_GET_CLASS (probe);
GValueArray *array = NULL;
switch (prop_id) {
case PROP_DEVICE:
array = gst_v4l_class_list_devices (klass);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
break;
}
return array;
}
static void
gst_v4l_property_probe_interface_init (GstPropertyProbeInterface * iface)
{
iface->get_properties = gst_v4l_probe_get_properties;
iface->probe_property = gst_v4l_probe_probe_property;
iface->needs_probe = gst_v4l_probe_needs_probe;
iface->get_values = gst_v4l_probe_get_values;
}
#define GST_TYPE_V4L_DEVICE_FLAGS (gst_v4l_device_get_type ())
Correct all relevant warnings found by the sparse semantic code analyzer. This include marking several symbols static... Original commit message from CVS: * ext/alsa/gstalsamixertrack.c: (gst_alsa_mixer_track_get_type): * ext/alsa/gstalsasink.c: (set_hwparams): * ext/alsa/gstalsasrc.c: (set_hwparams): * ext/gio/gstgio.c: (gst_gio_uri_handler_get_uri): * ext/ogg/gstoggmux.h: * ext/ogg/gstogmparse.c: * gst-libs/gst/audio/audio.c: * gst-libs/gst/fft/kiss_fft_f64.c: (kiss_fft_f64_alloc): * gst-libs/gst/pbutils/missing-plugins.c: (gst_missing_uri_sink_message_new), (gst_missing_element_message_new), (gst_missing_decoder_message_new), (gst_missing_encoder_message_new): * gst-libs/gst/rtp/gstbasertppayload.c: * gst-libs/gst/rtp/gstrtcpbuffer.c: (gst_rtcp_packet_bye_get_reason): * gst/audioconvert/gstaudioconvert.c: * gst/audioresample/gstaudioresample.c: * gst/ffmpegcolorspace/imgconvert.c: * gst/playback/test.c: (gen_video_element), (gen_audio_element): * gst/typefind/gsttypefindfunctions.c: * gst/videoscale/vs_4tap.c: * gst/videoscale/vs_4tap.h: * sys/v4l/gstv4lelement.c: * sys/v4l/gstv4lsrc.c: (gst_v4lsrc_get_any_caps): * sys/v4l/v4l_calls.c: * sys/v4l/v4lsrc_calls.c: (gst_v4lsrc_capture_init), (gst_v4lsrc_try_capture): * sys/ximage/ximagesink.c: (gst_ximagesink_check_xshm_calls), (gst_ximagesink_ximage_new): * sys/xvimage/xvimagesink.c: (gst_xvimagesink_check_xshm_calls), (gst_xvimagesink_xvimage_new): * tests/check/elements/audioconvert.c: * tests/check/elements/audioresample.c: (fail_unless_perfect_stream): * tests/check/elements/audiotestsrc.c: (setup_audiotestsrc): * tests/check/elements/decodebin.c: * tests/check/elements/gdpdepay.c: (setup_gdpdepay), (setup_gdpdepay_streamheader): * tests/check/elements/gdppay.c: (setup_gdppay), (GST_START_TEST), (setup_gdppay_streamheader): * tests/check/elements/gnomevfssink.c: (setup_gnomevfssink): * tests/check/elements/multifdsink.c: (setup_multifdsink): * tests/check/elements/textoverlay.c: * tests/check/elements/videorate.c: (setup_videorate): * tests/check/elements/videotestsrc.c: (setup_videotestsrc): * tests/check/elements/volume.c: (setup_volume): * tests/check/elements/vorbisdec.c: (setup_vorbisdec): * tests/check/elements/vorbistag.c: * tests/check/generic/clock-selection.c: * tests/check/generic/states.c: (setup), (teardown): * tests/check/libs/cddabasesrc.c: * tests/check/libs/video.c: * tests/check/pipelines/gio.c: * tests/check/pipelines/oggmux.c: * tests/check/pipelines/simple-launch-lines.c: (simple_launch_lines_suite): * tests/check/pipelines/streamheader.c: * tests/check/pipelines/theoraenc.c: * tests/check/pipelines/vorbisdec.c: * tests/check/pipelines/vorbisenc.c: * tests/examples/seek/scrubby.c: * tests/examples/seek/seek.c: (query_positions_elems), (query_positions_pads): * tests/icles/stress-xoverlay.c: (myclock): Correct all relevant warnings found by the sparse semantic code analyzer. This include marking several symbols static, using NULL instead of 0 for pointers and using "foo (void)" instead of "foo ()" for declarations. * win32/common/libgstrtp.def: Add gst_rtp_buffer_set_extension_data to the symbol definition file.
2008-03-03 06:04:31 +00:00
static GType
gst_v4l_device_get_type (void)
{
static GType v4l_device_type = 0;
if (v4l_device_type == 0) {
static const GFlagsValue values[] = {
{VID_TYPE_CAPTURE, "CAPTURE", "Device can capture"},
{VID_TYPE_TUNER, "TUNER", "Device has a tuner"},
{VID_TYPE_OVERLAY, "OVERLAY", "Device can do overlay"},
{VID_TYPE_MPEG_DECODER, "MPEG_DECODER", "Device can decode MPEG"},
{VID_TYPE_MPEG_ENCODER, "MPEG_ENCODER", "Device can encode MPEG"},
{VID_TYPE_MJPEG_DECODER, "MJPEG_DECODER", "Device can decode MJPEG"},
{VID_TYPE_MJPEG_ENCODER, "MJPEG_ENCODER", "Device can encode MJPEG"},
{0x10000, "AUDIO", "Device handles audio"},
{0, NULL, NULL}
};
v4l_device_type = g_flags_register_static ("GstV4lDeviceTypeFlags", values);
}
return v4l_device_type;
}
static void
gst_v4lelement_init_interfaces (GType type)
{
static const GInterfaceInfo v4liface_info = {
(GInterfaceInitFunc) gst_v4l_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo v4l_tuner_info = {
(GInterfaceInitFunc) gst_v4l_tuner_interface_init,
NULL,
NULL,
};
#ifdef HAVE_XVIDEO
static const GInterfaceInfo v4l_xoverlay_info = {
(GInterfaceInitFunc) gst_v4l_xoverlay_interface_init,
NULL,
NULL,
};
#endif
static const GInterfaceInfo v4l_colorbalance_info = {
(GInterfaceInitFunc) gst_v4l_color_balance_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo v4l_propertyprobe_info = {
(GInterfaceInitFunc) gst_v4l_property_probe_interface_init,
NULL,
NULL,
};
g_type_add_interface_static (type,
GST_TYPE_IMPLEMENTS_INTERFACE, &v4liface_info);
g_type_add_interface_static (type, GST_TYPE_TUNER, &v4l_tuner_info);
#ifdef HAVE_XVIDEO
g_type_add_interface_static (type, GST_TYPE_X_OVERLAY, &v4l_xoverlay_info);
#endif
g_type_add_interface_static (type,
GST_TYPE_COLOR_BALANCE, &v4l_colorbalance_info);
g_type_add_interface_static (type,
GST_TYPE_PROPERTY_PROBE, &v4l_propertyprobe_info);
}
static void
gst_v4lelement_base_init (gpointer g_class)
{
GstV4lElementClass *klass = GST_V4LELEMENT_CLASS (g_class);
klass->devices = NULL;
GST_DEBUG_CATEGORY_INIT (v4lelement_debug, "v4lelement", 0,
"V4L Base Class debug");
}
static void
gst_v4lelement_class_init (GstV4lElementClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_v4lelement_set_property;
gobject_class->get_property = gst_v4lelement_get_property;
gobject_class->dispose = gst_v4lelement_dispose;
element_class->change_state = gst_v4lelement_change_state;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEVICE,
g_param_spec_string ("device", "Device", "Device location",
Use G_PARAM_STATIC_STRINGS everywhere for GParamSpecs that use static strings (i.e. all). This gives us less memory u... Original commit message from CVS: * configure.ac: * ext/alsa/gstalsamixerelement.c: (gst_alsa_mixer_element_class_init): * ext/alsa/gstalsasink.c: (gst_alsasink_class_init): * ext/alsa/gstalsasrc.c: (gst_alsasrc_class_init): * ext/cdparanoia/gstcdparanoiasrc.c: (gst_cd_paranoia_src_class_init): * ext/gio/gstgiosink.c: (gst_gio_sink_class_init): * ext/gio/gstgiosrc.c: (gst_gio_src_class_init): * ext/gio/gstgiostreamsink.c: (gst_gio_stream_sink_class_init): * ext/gio/gstgiostreamsrc.c: (gst_gio_stream_src_class_init): * ext/gnomevfs/gstgnomevfssink.c: (gst_gnome_vfs_sink_class_init): * ext/gnomevfs/gstgnomevfssrc.c: (gst_gnome_vfs_src_class_init): * ext/ogg/gstoggmux.c: (gst_ogg_mux_class_init): * ext/pango/gsttextoverlay.c: (gst_text_overlay_class_init): * ext/pango/gsttextrender.c: (gst_text_render_class_init): * ext/theora/theoradec.c: (gst_theora_dec_class_init): * ext/theora/theoraenc.c: (gst_theora_enc_class_init): * ext/theora/theoraparse.c: (gst_theora_parse_class_init): * ext/vorbis/vorbisenc.c: (gst_vorbis_enc_class_init): * gst-libs/gst/audio/gstaudiofiltertemplate.c: (gst_audio_filter_template_class_init): * gst-libs/gst/audio/gstbaseaudiosink.c: (gst_base_audio_sink_class_init): * gst-libs/gst/audio/gstbaseaudiosrc.c: (gst_base_audio_src_class_init): * gst-libs/gst/cdda/gstcddabasesrc.c: (gst_cdda_base_src_class_init): * gst-libs/gst/interfaces/mixertrack.c: (gst_mixer_track_class_init): * gst-libs/gst/rtp/gstbasertpdepayload.c: (gst_base_rtp_depayload_class_init): * gst-libs/gst/rtp/gstbasertppayload.c: (gst_basertppayload_class_init): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_class_init): * gst/audiorate/gstaudiorate.c: (gst_audio_rate_class_init): * gst/audioresample/gstaudioresample.c: (gst_audioresample_class_init): * gst/audiotestsrc/gstaudiotestsrc.c: (gst_audio_test_src_class_init): * gst/gdp/gstgdppay.c: (gst_gdp_pay_class_init): * gst/playback/gstdecodebin2.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (gst_play_base_bin_class_init), (preroll_unlinked): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/playback/gstplaybin2.c: (gst_play_bin_class_init): * gst/playback/gstplaysink.c: (gst_play_sink_class_init): * gst/playback/gstqueue2.c: (gst_queue_class_init): * gst/playback/gststreaminfo.c: (gst_stream_info_class_init): * gst/playback/gststreamselector.c: (gst_selector_pad_class_init), (gst_stream_selector_class_init): * gst/playback/gsturidecodebin.c: (gst_uri_decode_bin_class_init): * gst/subparse/gstsubparse.c: (gst_sub_parse_class_init): * gst/tcp/gstmultifdsink.c: (gst_multi_fd_sink_class_init): * gst/tcp/gsttcpclientsink.c: (gst_tcp_client_sink_class_init): * gst/tcp/gsttcpclientsrc.c: (gst_tcp_client_src_class_init): * gst/tcp/gsttcpserversink.c: (gst_tcp_server_sink_class_init): * gst/tcp/gsttcpserversrc.c: (gst_tcp_server_src_class_init): * gst/videorate/gstvideorate.c: (gst_video_rate_class_init): * gst/videoscale/gstvideoscale.c: (gst_video_scale_class_init): * gst/videotestsrc/gstvideotestsrc.c: (gst_video_test_src_class_init): * gst/volume/gstvolume.c: (gst_volume_class_init): * sys/v4l/gstv4lelement.c: (gst_v4lelement_class_init): * sys/v4l/gstv4lmjpegsink.c: (gst_v4lmjpegsink_class_init): * sys/v4l/gstv4lmjpegsrc.c: (gst_v4lmjpegsrc_class_init): * sys/v4l/gstv4lsrc.c: (gst_v4lsrc_class_init): * sys/ximage/ximagesink.c: (gst_ximagesink_class_init): * sys/xvimage/xvimagesink.c: (gst_xvimagesink_class_init): Use G_PARAM_STATIC_STRINGS everywhere for GParamSpecs that use static strings (i.e. all). This gives us less memory usage, fewer allocations and thus less memory defragmentation. Depend on core CVS for this. Fixes bug #523806.
2008-03-22 15:00:53 +00:00
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEVICE_NAME,
Use G_PARAM_STATIC_STRINGS everywhere for GParamSpecs that use static strings (i.e. all). This gives us less memory u... Original commit message from CVS: * configure.ac: * ext/alsa/gstalsamixerelement.c: (gst_alsa_mixer_element_class_init): * ext/alsa/gstalsasink.c: (gst_alsasink_class_init): * ext/alsa/gstalsasrc.c: (gst_alsasrc_class_init): * ext/cdparanoia/gstcdparanoiasrc.c: (gst_cd_paranoia_src_class_init): * ext/gio/gstgiosink.c: (gst_gio_sink_class_init): * ext/gio/gstgiosrc.c: (gst_gio_src_class_init): * ext/gio/gstgiostreamsink.c: (gst_gio_stream_sink_class_init): * ext/gio/gstgiostreamsrc.c: (gst_gio_stream_src_class_init): * ext/gnomevfs/gstgnomevfssink.c: (gst_gnome_vfs_sink_class_init): * ext/gnomevfs/gstgnomevfssrc.c: (gst_gnome_vfs_src_class_init): * ext/ogg/gstoggmux.c: (gst_ogg_mux_class_init): * ext/pango/gsttextoverlay.c: (gst_text_overlay_class_init): * ext/pango/gsttextrender.c: (gst_text_render_class_init): * ext/theora/theoradec.c: (gst_theora_dec_class_init): * ext/theora/theoraenc.c: (gst_theora_enc_class_init): * ext/theora/theoraparse.c: (gst_theora_parse_class_init): * ext/vorbis/vorbisenc.c: (gst_vorbis_enc_class_init): * gst-libs/gst/audio/gstaudiofiltertemplate.c: (gst_audio_filter_template_class_init): * gst-libs/gst/audio/gstbaseaudiosink.c: (gst_base_audio_sink_class_init): * gst-libs/gst/audio/gstbaseaudiosrc.c: (gst_base_audio_src_class_init): * gst-libs/gst/cdda/gstcddabasesrc.c: (gst_cdda_base_src_class_init): * gst-libs/gst/interfaces/mixertrack.c: (gst_mixer_track_class_init): * gst-libs/gst/rtp/gstbasertpdepayload.c: (gst_base_rtp_depayload_class_init): * gst-libs/gst/rtp/gstbasertppayload.c: (gst_basertppayload_class_init): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_class_init): * gst/audiorate/gstaudiorate.c: (gst_audio_rate_class_init): * gst/audioresample/gstaudioresample.c: (gst_audioresample_class_init): * gst/audiotestsrc/gstaudiotestsrc.c: (gst_audio_test_src_class_init): * gst/gdp/gstgdppay.c: (gst_gdp_pay_class_init): * gst/playback/gstdecodebin2.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (gst_play_base_bin_class_init), (preroll_unlinked): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/playback/gstplaybin2.c: (gst_play_bin_class_init): * gst/playback/gstplaysink.c: (gst_play_sink_class_init): * gst/playback/gstqueue2.c: (gst_queue_class_init): * gst/playback/gststreaminfo.c: (gst_stream_info_class_init): * gst/playback/gststreamselector.c: (gst_selector_pad_class_init), (gst_stream_selector_class_init): * gst/playback/gsturidecodebin.c: (gst_uri_decode_bin_class_init): * gst/subparse/gstsubparse.c: (gst_sub_parse_class_init): * gst/tcp/gstmultifdsink.c: (gst_multi_fd_sink_class_init): * gst/tcp/gsttcpclientsink.c: (gst_tcp_client_sink_class_init): * gst/tcp/gsttcpclientsrc.c: (gst_tcp_client_src_class_init): * gst/tcp/gsttcpserversink.c: (gst_tcp_server_sink_class_init): * gst/tcp/gsttcpserversrc.c: (gst_tcp_server_src_class_init): * gst/videorate/gstvideorate.c: (gst_video_rate_class_init): * gst/videoscale/gstvideoscale.c: (gst_video_scale_class_init): * gst/videotestsrc/gstvideotestsrc.c: (gst_video_test_src_class_init): * gst/volume/gstvolume.c: (gst_volume_class_init): * sys/v4l/gstv4lelement.c: (gst_v4lelement_class_init): * sys/v4l/gstv4lmjpegsink.c: (gst_v4lmjpegsink_class_init): * sys/v4l/gstv4lmjpegsrc.c: (gst_v4lmjpegsrc_class_init): * sys/v4l/gstv4lsrc.c: (gst_v4lsrc_class_init): * sys/ximage/ximagesink.c: (gst_ximagesink_class_init): * sys/xvimage/xvimagesink.c: (gst_xvimagesink_class_init): Use G_PARAM_STATIC_STRINGS everywhere for GParamSpecs that use static strings (i.e. all). This gives us less memory usage, fewer allocations and thus less memory defragmentation. Depend on core CVS for this. Fixes bug #523806.
2008-03-22 15:00:53 +00:00
g_param_spec_string ("device-name", "Device name", "Name of the device",
NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FLAGS,
g_param_spec_flags ("flags", "Flags", "Device type flags",
Use G_PARAM_STATIC_STRINGS everywhere for GParamSpecs that use static strings (i.e. all). This gives us less memory u... Original commit message from CVS: * configure.ac: * ext/alsa/gstalsamixerelement.c: (gst_alsa_mixer_element_class_init): * ext/alsa/gstalsasink.c: (gst_alsasink_class_init): * ext/alsa/gstalsasrc.c: (gst_alsasrc_class_init): * ext/cdparanoia/gstcdparanoiasrc.c: (gst_cd_paranoia_src_class_init): * ext/gio/gstgiosink.c: (gst_gio_sink_class_init): * ext/gio/gstgiosrc.c: (gst_gio_src_class_init): * ext/gio/gstgiostreamsink.c: (gst_gio_stream_sink_class_init): * ext/gio/gstgiostreamsrc.c: (gst_gio_stream_src_class_init): * ext/gnomevfs/gstgnomevfssink.c: (gst_gnome_vfs_sink_class_init): * ext/gnomevfs/gstgnomevfssrc.c: (gst_gnome_vfs_src_class_init): * ext/ogg/gstoggmux.c: (gst_ogg_mux_class_init): * ext/pango/gsttextoverlay.c: (gst_text_overlay_class_init): * ext/pango/gsttextrender.c: (gst_text_render_class_init): * ext/theora/theoradec.c: (gst_theora_dec_class_init): * ext/theora/theoraenc.c: (gst_theora_enc_class_init): * ext/theora/theoraparse.c: (gst_theora_parse_class_init): * ext/vorbis/vorbisenc.c: (gst_vorbis_enc_class_init): * gst-libs/gst/audio/gstaudiofiltertemplate.c: (gst_audio_filter_template_class_init): * gst-libs/gst/audio/gstbaseaudiosink.c: (gst_base_audio_sink_class_init): * gst-libs/gst/audio/gstbaseaudiosrc.c: (gst_base_audio_src_class_init): * gst-libs/gst/cdda/gstcddabasesrc.c: (gst_cdda_base_src_class_init): * gst-libs/gst/interfaces/mixertrack.c: (gst_mixer_track_class_init): * gst-libs/gst/rtp/gstbasertpdepayload.c: (gst_base_rtp_depayload_class_init): * gst-libs/gst/rtp/gstbasertppayload.c: (gst_basertppayload_class_init): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_class_init): * gst/audiorate/gstaudiorate.c: (gst_audio_rate_class_init): * gst/audioresample/gstaudioresample.c: (gst_audioresample_class_init): * gst/audiotestsrc/gstaudiotestsrc.c: (gst_audio_test_src_class_init): * gst/gdp/gstgdppay.c: (gst_gdp_pay_class_init): * gst/playback/gstdecodebin2.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (gst_play_base_bin_class_init), (preroll_unlinked): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/playback/gstplaybin2.c: (gst_play_bin_class_init): * gst/playback/gstplaysink.c: (gst_play_sink_class_init): * gst/playback/gstqueue2.c: (gst_queue_class_init): * gst/playback/gststreaminfo.c: (gst_stream_info_class_init): * gst/playback/gststreamselector.c: (gst_selector_pad_class_init), (gst_stream_selector_class_init): * gst/playback/gsturidecodebin.c: (gst_uri_decode_bin_class_init): * gst/subparse/gstsubparse.c: (gst_sub_parse_class_init): * gst/tcp/gstmultifdsink.c: (gst_multi_fd_sink_class_init): * gst/tcp/gsttcpclientsink.c: (gst_tcp_client_sink_class_init): * gst/tcp/gsttcpclientsrc.c: (gst_tcp_client_src_class_init): * gst/tcp/gsttcpserversink.c: (gst_tcp_server_sink_class_init): * gst/tcp/gsttcpserversrc.c: (gst_tcp_server_src_class_init): * gst/videorate/gstvideorate.c: (gst_video_rate_class_init): * gst/videoscale/gstvideoscale.c: (gst_video_scale_class_init): * gst/videotestsrc/gstvideotestsrc.c: (gst_video_test_src_class_init): * gst/volume/gstvolume.c: (gst_volume_class_init): * sys/v4l/gstv4lelement.c: (gst_v4lelement_class_init): * sys/v4l/gstv4lmjpegsink.c: (gst_v4lmjpegsink_class_init): * sys/v4l/gstv4lmjpegsrc.c: (gst_v4lmjpegsrc_class_init): * sys/v4l/gstv4lsrc.c: (gst_v4lsrc_class_init): * sys/ximage/ximagesink.c: (gst_ximagesink_class_init): * sys/xvimage/xvimagesink.c: (gst_xvimagesink_class_init): Use G_PARAM_STATIC_STRINGS everywhere for GParamSpecs that use static strings (i.e. all). This gives us less memory usage, fewer allocations and thus less memory defragmentation. Depend on core CVS for this. Fixes bug #523806.
2008-03-22 15:00:53 +00:00
GST_TYPE_V4L_DEVICE_FLAGS, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
}
static void
gst_v4lelement_init (GstV4lElement * v4lelement, GstV4lElementClass * klass)
{
/* some default values */
v4lelement->video_fd = -1;
v4lelement->buffer = NULL;
v4lelement->videodev = g_strdup ("/dev/video0");
v4lelement->norms = NULL;
v4lelement->channels = NULL;
v4lelement->colors = NULL;
v4lelement->xwindow_id = 0;
}
static void
gst_v4lelement_dispose (GObject * object)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (object);
if (v4lelement->videodev) {
g_free (v4lelement->videodev);
Fixes a bunch of problems with finalize and dispose functions, either assumptions that dispose is only called once, o... Original commit message from CVS: * ext/alsa/gstalsa.c: (gst_alsa_class_init), (gst_alsa_dispose), (gst_alsa_finalize): * ext/cdaudio/gstcdaudio.c: (gst_cdaudio_class_init), (gst_cdaudio_finalize): * ext/cdparanoia/gstcdparanoia.c: (cdparanoia_class_init), (cdparanoia_finalize): * ext/divx/gstdivxdec.c: (gst_divxdec_dispose): * ext/divx/gstdivxenc.c: (gst_divxenc_dispose): * ext/dvdread/dvdreadsrc.c: (dvdreadsrc_class_init), (dvdreadsrc_finalize): * ext/flac/gstflacdec.c: (gst_flacdec_class_init), (gst_flacdec_finalize): * ext/flac/gstflacenc.c: (gst_flacenc_class_init), (gst_flacenc_finalize): * ext/gnomevfs/gstgnomevfssink.c: (gst_gnomevfssink_class_init), (gst_gnomevfssink_finalize): * ext/gnomevfs/gstgnomevfssrc.c: (gst_gnomevfssrc_class_init), (gst_gnomevfssrc_finalize): * ext/libfame/gstlibfame.c: (gst_fameenc_class_init), (gst_fameenc_finalize): * ext/nas/nassink.c: (gst_nassink_class_init), (gst_nassink_finalize): * ext/sdl/sdlvideosink.c: (gst_sdlvideosink_finalize), (gst_sdlvideosink_class_init): * ext/sndfile/gstsf.c: (gst_sf_dispose): * gst-libs/gst/mixer/mixertrack.c: (gst_mixer_track_dispose): * gst-libs/gst/tuner/tunerchannel.c: (gst_tuner_channel_dispose): * gst-libs/gst/tuner/tunernorm.c: (gst_tuner_norm_dispose): * gst-libs/gst/xwindowlistener/xwindowlistener.c: (gst_x_window_listener_dispose): * gst/audioscale/gstaudioscale.c: * gst/playondemand/gstplayondemand.c: (play_on_demand_class_init), (play_on_demand_finalize): * gst/videofilter/gstvideobalance.c: (gst_videobalance_dispose): * gst/videoscale/gstvideoscale.c: (gst_videoscale_chain): * sys/cdrom/gstcdplayer.c: (cdplayer_class_init), (cdplayer_finalize): * sys/glsink/glimagesink.c: (gst_glimagesink_finalize), (gst_glimagesink_class_init): * sys/oss/gstosselement.c: (gst_osselement_class_init), (gst_osselement_finalize): * sys/oss/gstosssink.c: (gst_osssink_dispose): * sys/oss/gstosssrc.c: (gst_osssrc_dispose): * sys/v4l/gstv4lelement.c: (gst_v4lelement_dispose): Fixes a bunch of problems with finalize and dispose functions, either assumptions that dispose is only called once, or not calling the parent class dispose/finalize function
2004-11-01 14:43:38 +00:00
v4lelement->videodev = NULL;
}
if (((GObjectClass *) parent_class)->dispose)
((GObjectClass *) parent_class)->dispose (object);
}
static void
gst_v4lelement_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (object);
switch (prop_id) {
case PROP_DEVICE:
if (v4lelement->videodev)
g_free (v4lelement->videodev);
v4lelement->videodev = g_strdup (g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_v4lelement_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (object);
switch (prop_id) {
case PROP_DEVICE:
g_value_set_string (value, v4lelement->videodev);
break;
case PROP_DEVICE_NAME:{
gchar *new = NULL;
if (GST_V4L_IS_OPEN (v4lelement)) {
new = v4lelement->vcap.name;
} else if (gst_v4l_open (v4lelement)) {
new = v4lelement->vcap.name;
gst_v4l_close (v4lelement);
}
g_value_set_string (value, new);
break;
}
case PROP_FLAGS:{
guint flags = 0;
if (GST_V4L_IS_OPEN (v4lelement)) {
flags |= v4lelement->vcap.type & 0x3C0B;
if (v4lelement->vcap.audios)
flags |= 0x10000;
}
g_value_set_flags (value, flags);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_v4lelement_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstV4lElement *v4lelement = GST_V4LELEMENT (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
/* open the device */
if (!gst_v4l_open (v4lelement))
return GST_STATE_CHANGE_FAILURE;
#ifdef HAVE_XVIDEO
gst_v4l_xoverlay_start (v4lelement);
#endif
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
/* close the device */
#ifdef HAVE_XVIDEO
gst_v4l_xoverlay_stop (v4lelement);
#endif
if (!gst_v4l_close (v4lelement))
return GST_STATE_CHANGE_FAILURE;
break;
default:
break;
}
return ret;
}