static void
gst_rtmp_src_class_init (GstRTMPSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSrcClass *gstbasesrc_class;
GstPushSrcClass *gstpushsrc_class;
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
gobject_class->finalize = gst_rtmp_src_finalize;
gobject_class->set_property = gst_rtmp_src_set_property;
gobject_class->get_property = gst_rtmp_src_get_property;
/* properties */
g_object_class_install_property (gobject_class, PROP_LOCATION,
g_param_spec_string ("location", "RTMP Location",
"Location of the RTMP url to read",
DEFAULT_LOCATION, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&srctemplate));
gst_element_class_set_static_metadata (gstelement_class,
"RTMP Source",
"Source/File",
"Read RTMP streams",
"Bastien Nocera <*****@*****.**>, "
"Sebastian Dröge <*****@*****.**>");
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_rtmp_src_start);
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_rtmp_src_stop);
gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_rtmp_src_is_seekable);
gstbasesrc_class->prepare_seek_segment =
GST_DEBUG_FUNCPTR (gst_rtmp_src_prepare_seek_segment);
gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_rtmp_src_do_seek);
gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_rtmp_src_create);
gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_rtmp_src_query);
GST_DEBUG_CATEGORY_INIT (rtmpsrc_debug, "rtmpsrc", 0, "RTMP Source");
}
static gboolean
gst_ladspa_source_type_query (GstBaseSrc * base, GstQuery * query)
{
GstLADSPASource *ladspa = GST_LADSPA_SOURCE (base);
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
if (!gst_audio_info_convert (&ladspa->info, src_fmt, src_val, dest_fmt,
&dest_val)) {
GST_DEBUG_OBJECT (ladspa, "query failed");
return FALSE;
}
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
res = TRUE;
break;
}
case GST_QUERY_SCHEDULING:
{
/* if we can operate in pull mode */
gst_query_set_scheduling (query, GST_SCHEDULING_FLAG_SEEKABLE, 1, -1, 0);
gst_query_add_scheduling_mode (query, GST_PAD_MODE_PUSH);
if (ladspa->can_activate_pull)
gst_query_add_scheduling_mode (query, GST_PAD_MODE_PULL);
res = TRUE;
break;
}
default:
res =
GST_BASE_SRC_CLASS (gst_ladspa_source_type_parent_class)->query
(base, query);
break;
}
return res;
}
static void
gst_linsys_sdi_src_class_init (GstLinsysSdiSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSrcClass *base_src_class = GST_BASE_SRC_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (gst_linsys_sdi_src_debug, "linsyssdisrc", 0,
"FIXME");
gobject_class->set_property = gst_linsys_sdi_src_set_property;
gobject_class->get_property = gst_linsys_sdi_src_get_property;
gobject_class->dispose = gst_linsys_sdi_src_dispose;
gobject_class->finalize = gst_linsys_sdi_src_finalize;
base_src_class->get_caps = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_get_caps);
base_src_class->set_caps = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_set_caps);
if (0)
base_src_class->negotiate =
GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_negotiate);
base_src_class->newsegment =
GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_newsegment);
base_src_class->start = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_start);
base_src_class->stop = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_stop);
base_src_class->get_times = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_get_times);
base_src_class->get_size = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_get_size);
base_src_class->is_seekable =
GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_is_seekable);
base_src_class->unlock = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_unlock);
base_src_class->event = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_event);
base_src_class->create = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_create);
if (0)
base_src_class->do_seek = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_do_seek);
base_src_class->query = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_query);
base_src_class->check_get_range =
GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_check_get_range);
base_src_class->fixate = GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_fixate);
base_src_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_unlock_stop);
base_src_class->prepare_seek_segment =
GST_DEBUG_FUNCPTR (gst_linsys_sdi_src_prepare_seek_segment);
g_object_class_install_property (gobject_class, PROP_DEVICE,
g_param_spec_string ("device", "Device", "device to transmit data on",
DEFAULT_DEVICE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
gst_v4l2src_class_init (GstV4l2SrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBaseSrcClass *basesrc_class;
GstPushSrcClass *pushsrc_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
basesrc_class = GST_BASE_SRC_CLASS (klass);
pushsrc_class = GST_PUSH_SRC_CLASS (klass);
gobject_class->dispose = gst_v4l2src_dispose;
gobject_class->finalize = (GObjectFinalizeFunc) gst_v4l2src_finalize;
gobject_class->set_property = gst_v4l2src_set_property;
gobject_class->get_property = gst_v4l2src_get_property;
element_class->change_state = gst_v4l2src_change_state;
gst_v4l2_object_install_properties_helper (gobject_class,
DEFAULT_PROP_DEVICE);
g_object_class_install_property (gobject_class, PROP_QUEUE_SIZE,
g_param_spec_uint ("queue-size", "Queue size",
"Number of buffers to be enqueud in the driver in streaming mode",
GST_V4L2_MIN_BUFFERS, GST_V4L2_MAX_BUFFERS, PROP_DEF_QUEUE_SIZE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ALWAYS_COPY,
g_param_spec_boolean ("always-copy", "Always Copy",
"If the buffer will or not be used directly from mmap",
PROP_DEF_ALWAYS_COPY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
basesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_v4l2src_get_caps);
basesrc_class->set_caps = GST_DEBUG_FUNCPTR (gst_v4l2src_set_caps);
basesrc_class->start = GST_DEBUG_FUNCPTR (gst_v4l2src_start);
basesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_v4l2src_unlock);
basesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_v4l2src_unlock_stop);
basesrc_class->stop = GST_DEBUG_FUNCPTR (gst_v4l2src_stop);
basesrc_class->query = GST_DEBUG_FUNCPTR (gst_v4l2src_query);
basesrc_class->fixate = GST_DEBUG_FUNCPTR (gst_v4l2src_fixate);
basesrc_class->negotiate = GST_DEBUG_FUNCPTR (gst_v4l2src_negotiate);
pushsrc_class->create = GST_DEBUG_FUNCPTR (gst_v4l2src_create);
}
static void
gst_spot_src_class_init (GstSpotSrcClass * klass)
{
GObjectClass *gobject_class;
GstBaseSrcClass *gstbasesrc_class;
gobject_class = G_OBJECT_CLASS (klass);
gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_spot_src_set_property;
gobject_class->get_property = gst_spot_src_get_property;
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_spot_src_finalize);
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_spot_src_start);
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_spot_src_stop);
gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_spot_src_unlock);
gstbasesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_spot_src_unlock_stop);
gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_spot_src_is_seekable);
gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_spot_src_get_size);
gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_spot_src_create);
gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_spot_src_query);
g_object_class_install_property (gobject_class, ARG_USER,
g_param_spec_string ("user", "Username", "Username for premium spotify account",
DEFAULT_USER, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_PASS,
g_param_spec_string ("pass", "Password", "Password for premium spotify account",
DEFAULT_PASS, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_URI,
g_param_spec_string ("uri", "URI", "A URI", "unknown",
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_BUFFER_TIME,
g_param_spec_uint64 ("buffer-time", "buffer time in us", "buffer time in us",
0,BUFFER_TIME_MAX,BUFFER_TIME_DEFAULT,
G_PARAM_READWRITE));
gst_spot_signals[SIGNAL_PLAY_TOKEN_LOST] =
g_signal_new ("play-token-lost", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
}
static void
gst_codec_src_class_init (GstCodecSrcClass * klass)
{
GstPushSrcClass *pushsrc_class = GST_PUSH_SRC_CLASS (klass);
GstBaseSrcClass *basesrc_class = GST_BASE_SRC_CLASS (klass);
static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-codec")
);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_templ));
gst_element_class_set_metadata (element_class,
"Codec Src", "Source/Video", "yep", "me");
pushsrc_class->create = gst_codec_src_create;
basesrc_class->get_caps = gst_codec_src_get_caps;
}
static void
gst_red_video_src_class_init (GstRedVideoSrcClass * klass)
{
GstPushSrcClass *pushsrc_class = GST_PUSH_SRC_CLASS (klass);
GstBaseSrcClass *basesrc_class = GST_BASE_SRC_CLASS (klass);
static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw, format=(string)I420")
);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_templ));
gst_element_class_set_metadata (element_class,
"Red Video Src", "Source/Video", "yep", "me");
pushsrc_class->create = gst_red_video_src_create;
basesrc_class->get_caps = gst_red_video_src_get_caps;
}
static GstCaps *
gst_gl_test_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
{
GstStructure *structure;
GST_DEBUG ("fixate");
caps = gst_caps_make_writable (caps);
structure = gst_caps_get_structure (caps, 0);
gst_structure_fixate_field_nearest_int (structure, "width", 320);
gst_structure_fixate_field_nearest_int (structure, "height", 240);
gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
caps = GST_BASE_SRC_CLASS (parent_class)->fixate (bsrc, caps);
return caps;
}
static void
gst_dtmf_src_class_init (GstDTMFSrcClass * klass)
{
GObjectClass *gobject_class;
GstBaseSrcClass *gstbasesrc_class;
GstElementClass *gstelement_class;
gobject_class = G_OBJECT_CLASS (klass);
gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (gst_dtmf_src_debug, "dtmfsrc", 0, "dtmfsrc element");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_dtmf_src_template));
gst_element_class_set_metadata (gstelement_class, "DTMF tone generator",
"Source/Audio",
"Generates DTMF tones",
"Youness Alaoui <*****@*****.**>");
gobject_class->finalize = gst_dtmf_src_finalize;
gobject_class->set_property = gst_dtmf_src_set_property;
gobject_class->get_property = gst_dtmf_src_get_property;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_INTERVAL,
g_param_spec_uint ("interval", "Interval between tone packets",
"Interval in ms between two tone packets", MIN_PACKET_INTERVAL,
MAX_PACKET_INTERVAL, DEFAULT_PACKET_INTERVAL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_dtmf_src_change_state);
gstelement_class->send_event = GST_DEBUG_FUNCPTR (gst_dtmf_src_send_event);
gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_dtmf_src_unlock);
gstbasesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_dtmf_src_unlock_stop);
gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dtmf_src_handle_event);
gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_dtmf_src_create);
gstbasesrc_class->negotiate = GST_DEBUG_FUNCPTR (gst_dtmf_src_negotiate);
}
static void
gst_avdtp_src_class_init (GstAvdtpSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseSrcClass *basesrc_class = GST_BASE_SRC_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_avdtp_src_finalize);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_avdtp_src_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_avdtp_src_get_property);
basesrc_class->start = GST_DEBUG_FUNCPTR (gst_avdtp_src_start);
basesrc_class->stop = GST_DEBUG_FUNCPTR (gst_avdtp_src_stop);
basesrc_class->create = GST_DEBUG_FUNCPTR (gst_avdtp_src_create);
basesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_avdtp_src_unlock);
basesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_avdtp_src_unlock_stop);
basesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_avdtp_src_getcaps);
basesrc_class->query = GST_DEBUG_FUNCPTR (gst_avdtp_src_query);
g_object_class_install_property (gobject_class, PROP_TRANSPORT,
g_param_spec_string ("transport",
"Transport", "Use configured transport", NULL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_TRANSPORT_VOLUME,
g_param_spec_uint ("transport-volume",
"Transport volume",
"Volume of the transport (only valid if transport is acquired)",
0, 127, 127, G_PARAM_READWRITE));
gst_element_class_set_static_metadata (element_class,
"Bluetooth AVDTP Source",
"Source/Audio/Network/RTP",
"Receives audio from an A2DP device",
"Arun Raghavan <*****@*****.**>");
GST_DEBUG_CATEGORY_INIT (avdtpsrc_debug, "avdtpsrc", 0,
"Bluetooth AVDTP Source");
gst_element_class_add_static_pad_template (element_class,
&gst_avdtp_src_template);
}
static void
gst_pulsesrc_class_init (GstPulseSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstAudioSrcClass *gstaudiosrc_class = GST_AUDIO_SRC_CLASS (klass);
GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_pulsesrc_finalize);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_pulsesrc_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_pulsesrc_get_property);
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_pulsesrc_change_state);
gstbasesrc_class->negotiate = GST_DEBUG_FUNCPTR (gst_pulsesrc_negotiate);
gstaudiosrc_class->open = GST_DEBUG_FUNCPTR (gst_pulsesrc_open);
gstaudiosrc_class->close = GST_DEBUG_FUNCPTR (gst_pulsesrc_close);
gstaudiosrc_class->prepare = GST_DEBUG_FUNCPTR (gst_pulsesrc_prepare);
gstaudiosrc_class->unprepare = GST_DEBUG_FUNCPTR (gst_pulsesrc_unprepare);
gstaudiosrc_class->read = GST_DEBUG_FUNCPTR (gst_pulsesrc_read);
gstaudiosrc_class->delay = GST_DEBUG_FUNCPTR (gst_pulsesrc_delay);
gstaudiosrc_class->reset = GST_DEBUG_FUNCPTR (gst_pulsesrc_reset);
/* Overwrite GObject fields */
g_object_class_install_property (gobject_class,
PROP_SERVER,
g_param_spec_string ("server", "Server",
"The PulseAudio server to connect to", DEFAULT_SERVER,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_DEVICE,
g_param_spec_string ("device", "Device",
"The PulseAudio source device to connect to", DEFAULT_DEVICE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_DEVICE_NAME,
g_param_spec_string ("device-name", "Device name",
"Human-readable name of the sound device", DEFAULT_DEVICE_NAME,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
}
static void
gst_fd_src_class_init (GstFdSrcClass * klass)
{
GObjectClass *gobject_class;
GstBaseSrcClass *gstbasesrc_class;
GstPushSrcClass *gstpush_src_class;
gobject_class = G_OBJECT_CLASS (klass);
gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gstpush_src_class = GST_PUSH_SRC_CLASS (klass);
gobject_class->set_property = gst_fd_src_set_property;
gobject_class->get_property = gst_fd_src_get_property;
gobject_class->dispose = gst_fd_src_dispose;
g_object_class_install_property (gobject_class, PROP_FD,
g_param_spec_int ("fd", "fd", "An open file descriptor to read from",
0, G_MAXINT, DEFAULT_FD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstFdSrc:timeout
*
* Post a message after timeout microseconds
*
* Since: 0.10.21
*/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TIMEOUT,
g_param_spec_uint64 ("timeout", "Timeout",
"Post a message after timeout microseconds (0 = disabled)", 0,
G_MAXUINT64, DEFAULT_TIMEOUT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_fd_src_start);
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_fd_src_stop);
gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_fd_src_unlock);
gstbasesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_fd_src_unlock_stop);
gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_fd_src_is_seekable);
gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_fd_src_get_size);
gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_fd_src_do_seek);
gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_fd_src_query);
gstpush_src_class->create = GST_DEBUG_FUNCPTR (gst_fd_src_create);
}
static gboolean
gst_osx_video_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstOSXVideoSrc *self;
gboolean res = FALSE;
self = GST_OSX_VIDEO_SRC (bsrc);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
GstClockTime min_latency, max_latency;
gint fps_n, fps_d;
fps_n = FRAMERATE;
fps_d = 1;
/* min latency is the time to capture one frame */
min_latency = gst_util_uint64_scale_int (GST_SECOND, fps_d, fps_n);
/* max latency is total duration of the frame buffer */
// FIXME: we don't know what this is, so we'll just say 2 frames
max_latency = 2 * min_latency;
GST_DEBUG_OBJECT (bsrc,
"report latency min %" GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
/* we are always live, the min latency is 1 frame and the max latency is
* the complete buffer of frames. */
gst_query_set_latency (query, TRUE, min_latency, max_latency);
res = TRUE;
break;
}
default:
res = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
break;
}
return res;
}
static void
gst_cel_video_src_class_init (GstCelVideoSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
gobject_class->dispose = gst_cel_video_src_dispose;
gobject_class->finalize = gst_cel_video_src_finalize;
gobject_class->get_property = gst_cel_video_src_get_property;
gobject_class->set_property = gst_cel_video_src_set_property;
gstelement_class->change_state = gst_cel_video_src_change_state;
gstbasesrc_class->get_caps = gst_cel_video_src_get_caps;
gstbasesrc_class->set_caps = gst_cel_video_src_set_caps;
gstbasesrc_class->start = gst_cel_video_src_start;
gstbasesrc_class->stop = gst_cel_video_src_stop;
gstbasesrc_class->query = gst_cel_video_src_query;
gstbasesrc_class->unlock = gst_cel_video_src_unlock;
gstbasesrc_class->unlock_stop = gst_cel_video_src_unlock_stop;
gstpushsrc_class->create = gst_cel_video_src_create;
g_object_class_install_property (gobject_class, PROP_DEVICE_INDEX,
g_param_spec_int ("device-index", "Device Index",
"The zero-based device index",
-1, G_MAXINT, DEFAULT_DEVICE_INDEX,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_DO_STATS,
g_param_spec_boolean ("do-stats", "Enable statistics",
"Enable logging of statistics", DEFAULT_DO_STATS,
G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_FPS,
g_param_spec_int ("fps", "Frames per second",
"Last measured framerate, if statistics are enabled",
-1, G_MAXINT, -1, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
GST_DEBUG_CATEGORY_INIT (gst_cel_video_src_debug, "celvideosrc",
0, "iOS Celestial video source");
}
static GstCaps *
gst_rpi_cam_src_fixate (GstBaseSrc * basesrc, GstCaps * caps)
{
GstStructure *structure;
gint i;
GST_DEBUG_OBJECT (basesrc, "fixating caps %" GST_PTR_FORMAT, caps);
caps = gst_caps_make_writable (caps);
for (i = 0; i < gst_caps_get_size (caps); ++i) {
structure = gst_caps_get_structure (caps, i);
/* Fixate to 1920x1080 resolution if possible */
gst_structure_fixate_field_nearest_int (structure, "width", 1920);
gst_structure_fixate_field_nearest_int (structure, "height", 1080);
gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
gst_structure_fixate_field (structure, "format");
}
GST_DEBUG_OBJECT (basesrc, "fixated caps %" GST_PTR_FORMAT, caps);
caps = GST_BASE_SRC_CLASS (parent_class)->fixate (basesrc, caps);
return caps;
}
static void
gst_flite_src_class_init (GstFliteSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSrcClass *gstbasesrc_class;
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_flite_src_set_property;
gobject_class->get_property = gst_flite_src_get_property;
g_object_class_install_property (gobject_class, PROP_LOCATION,
g_param_spec_string ("location", "File Location",
"Location of the file to read", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
gobject_class->finalize = gst_flite_src_finalize;
gst_element_class_set_static_metadata (gstelement_class,
"File Source",
"Source/File",
"Read from arbitrary point in a file",
"Erik Walthinsen <*****@*****.**>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&srctemplate));
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_flite_src_start);
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_flite_src_stop);
gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_flite_src_is_seekable);
gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_flite_src_get_size);
gstbasesrc_class->fill = GST_DEBUG_FUNCPTR (gst_flite_src_fill);
if (sizeof (off_t) < 8) {
GST_LOG ("No large file support, sizeof (off_t) = %" G_GSIZE_FORMAT "!",
sizeof (off_t));
}
}
static void
gst_mio_video_src_class_init (GstMIOVideoSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
gobject_class->finalize = gst_mio_video_src_finalize;
gobject_class->get_property = gst_mio_video_src_get_property;
gobject_class->set_property = gst_mio_video_src_set_property;
gstelement_class->change_state = gst_mio_video_src_change_state;
gstbasesrc_class->get_caps = gst_mio_video_src_get_caps;
gstbasesrc_class->set_caps = gst_mio_video_src_set_caps;
gstbasesrc_class->start = gst_mio_video_src_start;
gstbasesrc_class->stop = gst_mio_video_src_stop;
gstbasesrc_class->query = gst_mio_video_src_query;
gstbasesrc_class->unlock = gst_mio_video_src_unlock;
gstbasesrc_class->unlock_stop = gst_mio_video_src_unlock_stop;
gstpushsrc_class->create = gst_mio_video_src_create;
g_object_class_install_property (gobject_class, PROP_DEVICE_UID,
g_param_spec_string ("device-uid", "Device UID",
"Unique ID of the desired device", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
g_param_spec_string ("device-name", "Device Name",
"Name of the desired device", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_DEVICE_INDEX,
g_param_spec_int ("device-index", "Device Index",
"Zero-based device index of the desired device",
-1, G_MAXINT, DEFAULT_DEVICE_INDEX,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
GST_DEBUG_CATEGORY_INIT (gst_mio_video_src_debug, "miovideosrc",
0, "Mac OS X CoreMedia video source");
}
static void
gst_cutter_test_runner_class_init (GstCutterTestRunnerClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
GstElementClass *element_class = GST_ELEMENT_CLASS(klass);
GstBaseSrcClass *base_src_class = GST_BASE_SRC_CLASS(klass);
GParamSpec *spec;
parent_class = g_type_class_peek_parent(klass);
gobject_class->dispose = dispose;
gobject_class->set_property = set_property;
gobject_class->get_property = get_property;
element_class->change_state = change_state;
base_src_class->start = start;
base_src_class->stop = stop;
base_src_class->is_seekable = is_seekable;
base_src_class->create = create;
spec = g_param_spec_string("test-directory",
"Test directory",
"The directory name in which test cases are stored",
NULL,
G_PARAM_READWRITE);
g_object_class_install_property(gobject_class, ARG_TEST_DIRECTORY, spec);
g_type_class_add_private(gobject_class, sizeof(GstCutterTestRunnerPrivate));
GST_DEBUG_CATEGORY_INIT(cutter_test_runner_debug, "cutter-test", 0, "Cutter test elements");
gst_element_class_add_pad_template(element_class,
gst_static_pad_template_get(&cutter_test_runner_src_template_factory));
gst_element_class_set_metadata(element_class,
"Cutter test runner",
"Cutter test runner",
"Cutter test runner",
"g新部 Hiroyuki Ikezoe <*****@*****.**>");
}
static gboolean
gst_app_src_do_negotiate (GstBaseSrc * basesrc)
{
GstAppSrc *appsrc = GST_APP_SRC_CAST (basesrc);
GstAppSrcPrivate *priv = appsrc->priv;
gboolean result;
GstCaps *caps;
GST_OBJECT_LOCK (basesrc);
caps = priv->caps ? gst_caps_ref (priv->caps) : NULL;
GST_OBJECT_UNLOCK (basesrc);
if (caps) {
result = gst_base_src_set_caps (basesrc, caps);
gst_caps_unref (caps);
} else {
result = GST_BASE_SRC_CLASS (parent_class)->negotiate (basesrc);
}
return result;
}
static gboolean
gst_file_src_query (GstBaseSrc * basesrc, GstQuery * query)
{
gboolean ret = FALSE;
GstFileSrc *src = GST_FILE_SRC (basesrc);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_URI:
gst_query_set_uri (query, src->uri);
ret = TRUE;
break;
default:
ret = FALSE;
break;
}
if (!ret)
ret = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
return ret;
}
static gboolean
gst_gnome_vfs_src_query (GstBaseSrc * basesrc, GstQuery * query)
{
gboolean ret = FALSE;
GstGnomeVFSSrc *src = GST_GNOME_VFS_SRC (basesrc);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_URI:
gst_query_set_uri (query, src->uri_name);
ret = TRUE;
break;
default:
ret = FALSE;
break;
}
if (!ret)
ret = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
return ret;
}
static gboolean
gst_soup_http_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc);
gboolean ret;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_URI:
gst_query_set_uri (query, src->location);
ret = TRUE;
break;
default:
ret = FALSE;
break;
}
if (!ret)
ret = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
return ret;
}
static void
gst_wasapi_src_class_init (GstWasapiSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
gobject_class->dispose = gst_wasapi_src_dispose;
gobject_class->finalize = gst_wasapi_src_finalize;
gstelement_class->provide_clock = gst_wasapi_src_provide_clock;
gstbasesrc_class->start = gst_wasapi_src_start;
gstbasesrc_class->stop = gst_wasapi_src_stop;
gstbasesrc_class->query = gst_wasapi_src_query;
gstpushsrc_class->create = gst_wasapi_src_create;
GST_DEBUG_CATEGORY_INIT (gst_wasapi_src_debug, "wasapisrc",
0, "Windows audio session API source");
}
static GstCaps *
gst_aravis_fixate_caps (GstBaseSrc * bsrc, GstCaps * caps)
{
GstAravis *gst_aravis = GST_ARAVIS (bsrc);
GstStructure *structure;
gint width;
gint height;
double frame_rate;
arv_camera_get_region (gst_aravis->camera, NULL, NULL, &width, &height);
frame_rate = arv_camera_get_frame_rate (gst_aravis->camera);
structure = gst_caps_get_structure (caps, 0);
gst_structure_fixate_field_nearest_int (structure, "width", width);
gst_structure_fixate_field_nearest_int (structure, "height", height);
gst_structure_fixate_field_nearest_fraction (structure, "framerate", (double) (0.5 + frame_rate), 1);
GST_LOG_OBJECT (gst_aravis, "Fixate caps");
return GST_BASE_SRC_CLASS(gst_aravis_parent_class)->fixate(bsrc, caps);
}
static void
gst_multi_file_src_class_init (GstMultiFileSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_multi_file_src_set_property;
gobject_class->get_property = gst_multi_file_src_get_property;
g_object_class_install_property (gobject_class, ARG_LOCATION,
g_param_spec_string ("location", "File Location",
"Pattern to create file names of input files. File names are "
"created by calling sprintf() with the pattern and the current "
"index.", DEFAULT_LOCATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_INDEX,
g_param_spec_int ("index", "File Index",
"Index to use with location property to create file names. The "
"index is incremented by one for each buffer read.",
0, INT_MAX, DEFAULT_INDEX,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_CAPS,
g_param_spec_boxed ("caps", "Caps",
"Caps describing the format of the data.",
GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gobject_class->dispose = gst_multi_file_src_dispose;
gstbasesrc_class->get_caps = gst_multi_file_src_getcaps;
gstbasesrc_class->query = gst_multi_file_src_query;
gstpushsrc_class->create = gst_multi_file_src_create;
if (sizeof (off_t) < 8) {
GST_LOG ("No large file support, sizeof (off_t) = %" G_GSIZE_FORMAT,
sizeof (off_t));
}
}
/* this function is a bit of a last resort */
static GstCaps *
gst_v4l2src_fixate (GstBaseSrc * basesrc, GstCaps * caps)
{
GstStructure *structure;
gint i;
GST_DEBUG_OBJECT (basesrc, "fixating caps %" GST_PTR_FORMAT, caps);
caps = gst_caps_make_writable (caps);
for (i = 0; i < gst_caps_get_size (caps); ++i) {
structure = gst_caps_get_structure (caps, i);
/* We are fixating to a reasonable 320x200 resolution
and the maximum framerate resolution for that size */
if (gst_structure_has_field (structure, "width"))
gst_structure_fixate_field_nearest_int (structure, "width", 320);
if (gst_structure_has_field (structure, "height"))
gst_structure_fixate_field_nearest_int (structure, "height", 200);
if (gst_structure_has_field (structure, "framerate"))
gst_structure_fixate_field_nearest_fraction (structure, "framerate",
G_MAXINT, 1);
if (gst_structure_has_field (structure, "format"))
gst_structure_fixate_field (structure, "format");
if (gst_structure_has_field (structure, "interlace-mode"))
gst_structure_fixate_field (structure, "interlace-mode");
}
GST_DEBUG_OBJECT (basesrc, "fixated caps %" GST_PTR_FORMAT, caps);
caps = GST_BASE_SRC_CLASS (parent_class)->fixate (basesrc, caps);
return caps;
}
static gboolean
gst_decklink_audio_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (bsrc);
gboolean ret = TRUE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:{
if (self->input) {
g_mutex_lock (&self->input->lock);
if (self->input->mode) {
GstClockTime min, max;
min =
gst_util_uint64_scale_ceil (GST_SECOND, self->input->mode->fps_d,
self->input->mode->fps_n);
max = self->buffer_size * min;
gst_query_set_latency (query, TRUE, min, max);
ret = TRUE;
} else {
ret = FALSE;
}
g_mutex_unlock (&self->input->lock);
} else {
ret = FALSE;
}
break;
}
default:
ret = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
break;
}
return ret;
}
static gboolean
gst_decklink_video_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstDecklinkVideoSrc *self = GST_DECKLINK_VIDEO_SRC_CAST (bsrc);
gboolean ret = TRUE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:{
if (self->input) {
GstClockTime min, max;
const GstDecklinkMode *mode;
g_mutex_lock (&self->lock);
if (self->caps_mode != GST_DECKLINK_MODE_AUTO)
mode = gst_decklink_get_mode (self->caps_mode);
else
mode = gst_decklink_get_mode (self->mode);
g_mutex_unlock (&self->lock);
min = gst_util_uint64_scale_ceil (GST_SECOND, mode->fps_d, mode->fps_n);
max = self->buffer_size * min;
gst_query_set_latency (query, TRUE, min, max);
ret = TRUE;
} else {
ret = FALSE;
}
break;
}
default:
ret = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
break;
}
return ret;
}
static GstCaps *
gst_dshowvideosrc_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
{
/* If there is no desired video size, set default video size to device preffered video size */
GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (bsrc);
GstStructure *structure = gst_caps_get_structure (caps, 0);
guint i = 0;
gint res = -1;
for (; i < gst_caps_get_size (src->caps) && res == -1; i++) {
GstCaps *capstmp = gst_caps_copy_nth (src->caps, i);
if (gst_caps_is_subset (caps, capstmp)) {
res = i;
}
gst_caps_unref (capstmp);
}
if (res != -1) {
GList *type_pin_mediatype = g_list_nth (src->pins_mediatypes, res);
if (type_pin_mediatype) {
GstCapturePinMediaType *pin_mediatype =
(GstCapturePinMediaType *) type_pin_mediatype->data;
gst_structure_fixate_field_nearest_int (structure, "width",
pin_mediatype->defaultWidth);
gst_structure_fixate_field_nearest_int (structure, "height",
pin_mediatype->defaultHeight);
gst_structure_fixate_field_nearest_fraction (structure, "framerate",
pin_mediatype->defaultFPS, 1);
}
}
caps = GST_BASE_SRC_CLASS (gst_dshowvideosrc_parent_class)->fixate(bsrc, caps);
return caps;
}
static gboolean
gst_v4l2src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
GstV4l2Src *src = GST_V4L2SRC (bsrc);
gboolean ret = TRUE;
if (src->pending_set_fmt) {
GstCaps *caps = gst_pad_get_current_caps (GST_BASE_SRC_PAD (bsrc));
if (!gst_v4l2_object_stop (src->v4l2object))
return FALSE;
ret = gst_v4l2src_set_format (src, caps);
gst_caps_unref (caps);
src->pending_set_fmt = FALSE;
}
if (ret) {
ret = gst_v4l2_object_decide_allocation (src->v4l2object, query);
if (ret)
ret = GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);
}
if (ret) {
if (!gst_buffer_pool_set_active (src->v4l2object->pool, TRUE))
goto activate_failed;
}
return ret;
activate_failed:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
(_("Failed to allocate required memory.")),
("Buffer pool activation failed"));
return FALSE;
}
}
