static void
gst_wrapper_camera_bin_src_init (GstWrapperCameraBinSrc * self)
{
self->vfsrc =
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_VIEWFINDER_PAD_NAME,
GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (self), self->vfsrc);
self->imgsrc =
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_IMAGE_PAD_NAME,
GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (self), self->imgsrc);
self->vidsrc =
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_VIDEO_PAD_NAME,
GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (self), self->vidsrc);
gst_pad_set_event_function (self->imgsrc,
GST_DEBUG_FUNCPTR (gst_wrapper_camera_bin_src_src_event));
gst_pad_set_event_function (self->vidsrc,
GST_DEBUG_FUNCPTR (gst_wrapper_camera_bin_src_src_event));
/* TODO where are variables reset? */
self->image_capture_count = 0;
self->video_rec_status = GST_VIDEO_RECORDING_STATUS_DONE;
self->video_renegotiate = TRUE;
self->image_renegotiate = TRUE;
self->mode = GST_BASE_CAMERA_SRC_CAST (self)->mode;
self->app_vid_filter = NULL;
}
/**
* gst_ghost_pad_new:
* @name: (allow-none): the name of the new pad, or NULL to assign a default name
* @target: (transfer none): the pad to ghost.
*
* Create a new ghostpad with @target as the target. The direction will be taken
* from the target pad. @target must be unlinked.
*
* Will ref the target.
*
* Returns: (transfer floating): a new #GstPad, or NULL in case of an error.
*/
GstPad *
gst_ghost_pad_new (const gchar * name, GstPad * target)
{
GstPad *ret;
g_return_val_if_fail (GST_IS_PAD (target), NULL);
g_return_val_if_fail (!gst_pad_is_linked (target), NULL);
GST_LOG ("name:%s, target:%s:%s", GST_STR_NULL (name),
GST_DEBUG_PAD_NAME (target));
if ((ret = gst_ghost_pad_new_no_target (name, GST_PAD_DIRECTION (target))))
if (!gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ret), target))
goto set_target_failed;
return ret;
/* ERRORS */
set_target_failed:
{
GST_WARNING_OBJECT (ret, "failed to set target %s:%s",
GST_DEBUG_PAD_NAME (target));
gst_object_unref (ret);
return NULL;
}
}
static void
gst_single_decode_bin_init (GstSingleDecodeBin * sdbin)
{
GstElement *decodebin;
GstPad *sinkpad;
decodebin = gst_element_factory_make ("decodebin", "singledecodebin-dbin");
g_return_if_fail (decodebin != NULL);
g_signal_connect (decodebin, "pad-added", G_CALLBACK (dbin_pad_added_cb),
NULL);
g_signal_connect (decodebin, "autoplug-continue",
G_CALLBACK (dbin_autoplug_continue_cb), sdbin);
gst_bin_add (GST_BIN (sdbin), decodebin);
sinkpad = gst_element_get_static_pad (decodebin, "sink");
gst_element_add_pad (GST_ELEMENT (sdbin),
gst_ghost_pad_new ("sink", sinkpad));
gst_object_unref (sinkpad);
gst_element_add_pad (GST_ELEMENT (sdbin),
gst_ghost_pad_new_no_target ("src", GST_PAD_SRC));
sdbin->connected = FALSE;
sdbin->parse_only = FALSE;
}
static void
gst_hal_audio_sink_init (GstHalAudioSink * sink, GstHalAudioSinkClass * g_class)
{
sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
gst_hal_audio_sink_reset (sink);
}
static void
fps_display_sink_init (GstFPSDisplaySink * self,
GstFPSDisplaySinkClass * g_class)
{
self->sync = FALSE;
self->use_text_overlay = TRUE;
self->video_sink = NULL;
self->ghost_pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (self), self->ghost_pad);
self->query = gst_query_new_position (GST_FORMAT_TIME);
}
static void
gst_auto_video_src_init (GstAutoVideoSrc * src, GstAutoVideoSrcClass * g_class)
{
src->pad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (src), src->pad);
gst_auto_video_src_reset (src);
/* set the default raw video caps */
src->filter_caps = gst_static_caps_get (&raw_caps);
/* mark as source */
GST_OBJECT_FLAG_UNSET (src, GST_ELEMENT_IS_SINK);
}
static void
gst_auto_video_sink_init (GstAutoVideoSink * sink)
{
sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
gst_auto_video_sink_reset (sink);
/* set the default raw video caps */
sink->filter_caps = gst_static_caps_get (&raw_caps);
/* mark as sink */
GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_FLAG_SINK);
}
static void
fps_display_sink_init (GstFPSDisplaySink * self,
GstFPSDisplaySinkClass * g_class)
{
self->sync = DEFAULT_SYNC;
self->signal_measurements = DEFAULT_SIGNAL_FPS_MEASUREMENTS;
self->use_text_overlay = TRUE;
self->fps_update_interval = GST_MSECOND * DEFAULT_FPS_UPDATE_INTERVAL_MS;
self->video_sink = NULL;
self->max_fps = -1;
self->min_fps = -1;
self->ghost_pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (self), self->ghost_pad);
}
static void
gst_auto_audio_sink_init (GstAutoAudioSink * sink)
{
sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
gst_auto_audio_sink_reset (sink);
/* set the default raw audio caps */
sink->filter_caps = gst_static_caps_get (&raw_caps);
sink->ts_offset = DEFAULT_TS_OFFSET;
/* mark as sink */
GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_FLAG_SINK);
}
static void
gst_gconf_video_sink_init (GstGConfVideoSink * sink,
GstGConfVideoSinkClass * g_class)
{
sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
gst_gconf_video_sink_reset (sink);
sink->client = gconf_client_get_default ();
gconf_client_add_dir (sink->client, GST_GCONF_DIR,
GCONF_CLIENT_PRELOAD_RECURSIVE, NULL);
gconf_client_notify_add (sink->client,
GST_GCONF_DIR "/" GST_GCONF_VIDEOSINK_KEY,
cb_toggle_element, sink, NULL, NULL);
}
static void
gst_gconf_video_src_init (GstGConfVideoSrc * src,
GstGConfVideoSrcClass * g_class)
{
src->pad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (src), src->pad);
gst_gconf_video_src_reset (src);
src->client = gconf_client_get_default ();
gconf_client_add_dir (src->client, GST_GCONF_DIR,
GCONF_CLIENT_PRELOAD_RECURSIVE, NULL);
src->notify_id = gconf_client_notify_add (src->client,
GST_GCONF_DIR "/" GST_GCONF_VIDEOSRC_KEY,
cb_toggle_element, src, NULL, NULL);
}
static void
gst_camerabin_image_init (GstCameraBinImage * img,
GstCameraBinImageClass * g_class)
{
img->filename = g_string_new ("");
img->post = NULL;
img->csp = NULL;
img->enc = NULL;
img->app_enc = NULL;
img->formatter = NULL;
img->app_formatter = NULL;
img->sink = NULL;
/* Create src and sink ghost pads */
img->sinkpad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (img), img->sinkpad);
img->flags = DEFAULT_FLAGS;
}
/*
* owr_local_media_source_get_pad
*
* The beginning of a media source chain in the pipeline looks like this:
*
* +--------+ +------------+ +-----+
* | source +---+ capsfilter +---+ tee +---
* +--------+ +------------+ +-----+
*
* Only one such chain is created per media source for the initial get_pad
* call. Subsequent calls will just obtain another tee pad. After these initial
* elements are created, they are linked together and synced up to the PLAYING
* state.
*
* Once the initial chain is created, a block is placed on the new src pad of
* the tee. The rest of the new chain (conversion elements, capsfilter, queues,
* etc.) is created, linked and synced in the pad block callback.
*/
static GstPad *owr_local_media_source_get_pad(OwrMediaSource *media_source, GstCaps *caps)
{
OwrLocalMediaSource *local_source;
OwrLocalMediaSourcePrivate *priv;
GstElement *source_bin, *post_tee_bin;
GstElement *source = NULL, *capsfilter = NULL, *tee;
GstPad *ghostpad = NULL;
gchar *pad_name;
OwrMediaType media_type = OWR_MEDIA_TYPE_UNKNOWN;
OwrSourceType source_type = OWR_SOURCE_TYPE_UNKNOWN;
OwrCodecType codec_type = OWR_CODEC_TYPE_NONE;
guint source_id;
g_assert(media_source);
local_source = OWR_LOCAL_MEDIA_SOURCE(media_source);
priv = local_source->priv;
g_object_get(media_source, "media-type", &media_type, "type", &source_type, NULL);
/* only create the source bin for this media source once */
if (_owr_media_source_get_element(media_source)) {
GST_DEBUG_OBJECT(media_source, "Re-using existing source element/bin");
source_bin = _owr_media_source_get_element(media_source);
tee = priv->source_tee;
} else {
GEnumClass *media_enum_class, *source_enum_class;
GEnumValue *media_enum_value, *source_enum_value;
gchar *bin_name;
GstCaps *source_caps;
GstStructure *source_structure;
GstElement *fakesink;
media_enum_class = G_ENUM_CLASS(g_type_class_ref(OWR_TYPE_MEDIA_TYPE));
source_enum_class = G_ENUM_CLASS(g_type_class_ref(OWR_TYPE_SOURCE_TYPE));
media_enum_value = g_enum_get_value(media_enum_class, media_type);
source_enum_value = g_enum_get_value(source_enum_class, source_type);
bin_name = g_strdup_printf("local-%s-%s-source-bin-%u",
media_enum_value ? media_enum_value->value_nick : "unknown",
source_enum_value ? source_enum_value->value_nick : "unknown",
g_atomic_int_add(&unique_bin_id, 1));
g_type_class_unref(media_enum_class);
g_type_class_unref(source_enum_class);
source_bin = gst_bin_new(bin_name);
g_free(bin_name);
bin_name = NULL;
gst_bin_add(GST_BIN(_owr_get_pipeline()), source_bin);
gst_element_sync_state_with_parent(GST_ELEMENT(source_bin));
GST_DEBUG_OBJECT(local_source, "media_type: %d, type: %d", media_type, source_type);
if (media_type == OWR_MEDIA_TYPE_UNKNOWN || source_type == OWR_SOURCE_TYPE_UNKNOWN) {
GST_ERROR_OBJECT(local_source,
"Cannot connect source with unknown type or media type to other component");
goto done;
}
switch (media_type) {
case OWR_MEDIA_TYPE_AUDIO:
{
switch (source_type) {
case OWR_SOURCE_TYPE_CAPTURE:
CREATE_ELEMENT(source, AUDIO_SRC, "audio-source");
#if !defined(__APPLE__) || !TARGET_IPHONE_SIMULATOR
g_object_set(source, "buffer-time", G_GINT64_CONSTANT(40000),
"latency-time", G_GINT64_CONSTANT(10000), NULL);
#ifdef __APPLE__
g_object_set(source, "device", priv->device_index, NULL);
#endif
#endif
break;
case OWR_SOURCE_TYPE_TEST:
CREATE_ELEMENT(source, "audiotestsrc", "audio-source");
g_object_set(source, "is-live", TRUE, NULL);
break;
case OWR_SOURCE_TYPE_UNKNOWN:
default:
g_assert_not_reached();
goto done;
}
#if defined(__APPLE__) && !TARGET_IPHONE_SIMULATOR
/* workaround for osxaudiosrc bug
* https://bugzilla.gnome.org/show_bug.cgi?id=711764 */
CREATE_ELEMENT(capsfilter, "capsfilter", "audio-source-capsfilter");
source_caps = gst_caps_copy(caps);
source_structure = gst_caps_get_structure(source_caps, 0);
gst_structure_set(source_structure,
"format", G_TYPE_STRING, "S32LE",
"rate", G_TYPE_INT, 44100, NULL);
gst_structure_remove_field(source_structure, "channels");
g_object_set(capsfilter, "caps", source_caps, NULL);
gst_caps_unref(source_caps);
gst_bin_add(GST_BIN(source_bin), capsfilter);
#endif
break;
}
case OWR_MEDIA_TYPE_VIDEO:
{
switch (source_type) {
case OWR_SOURCE_TYPE_CAPTURE:
CREATE_ELEMENT(source, VIDEO_SRC, "video-source");
#if defined(__APPLE__) && !TARGET_IPHONE_SIMULATOR
g_object_set(source, "device-index", priv->device_index, NULL);
#elif defined(__ANDROID__)
g_object_set(source, "cam-index", priv->device_index, NULL);
#elif defined(__linux__)
{
gchar *device = g_strdup_printf("/dev/video%u", priv->device_index);
g_object_set(source, "device", device, NULL);
g_free(device);
}
#endif
break;
case OWR_SOURCE_TYPE_TEST:
CREATE_ELEMENT(source, "videotestsrc", "video-source");
g_object_set(source, "is-live", TRUE, NULL);
break;
case OWR_SOURCE_TYPE_UNKNOWN:
default:
g_assert_not_reached();
goto done;
}
CREATE_ELEMENT(capsfilter, "capsfilter", "video-source-capsfilter");
source_caps = gst_caps_copy(caps);
source_structure = gst_caps_get_structure(source_caps, 0);
gst_structure_remove_field(source_structure, "format");
gst_structure_remove_field(source_structure, "framerate");
g_object_set(capsfilter, "caps", source_caps, NULL);
gst_caps_unref(source_caps);
gst_bin_add(GST_BIN(source_bin), capsfilter);
break;
}
case OWR_MEDIA_TYPE_UNKNOWN:
default:
g_assert_not_reached();
goto done;
}
g_assert(source);
CREATE_ELEMENT(tee, "tee", "source-tee");
CREATE_ELEMENT(fakesink, "fakesink", "source-tee-fakesink");
g_object_set(fakesink, "async", FALSE, NULL);
gst_bin_add_many(GST_BIN(source_bin), source, tee, fakesink, NULL);
gst_element_sync_state_with_parent(fakesink);
LINK_ELEMENTS(tee, fakesink);
if (!source)
GST_ERROR_OBJECT(media_source, "Failed to create source element!");
}
codec_type = _owr_caps_to_codec_type(caps);
source_id = g_atomic_int_add(&unique_pad_id, 1);
pad_name = g_strdup_printf("src_%u_%u", codec_type, source_id);
ghostpad = gst_ghost_pad_new_no_target(pad_name, GST_PAD_SRC);
g_free(pad_name);
post_tee_bin = create_post_tee_bin(media_source, source_bin, caps, ghostpad, source_id);
if (!post_tee_bin) {
gst_object_unref(ghostpad);
ghostpad = NULL;
goto done;
}
if (!gst_element_link(tee, post_tee_bin)) {
GST_ERROR("Failed to link source tee to source-post-tee-bin-%u", source_id);
g_object_unref(post_tee_bin);
ghostpad = NULL;
goto done;
}
if (!_owr_media_source_get_element(media_source)) {
/* the next code block inside the if is a workaround for avfvideosrc
* not handling on-the-fly reconfiguration
* on upstream reconfigure events, we drop the event in the probe */
if (media_type == OWR_MEDIA_TYPE_VIDEO) {
GstPad *tee_sinkpad;
tee_sinkpad = gst_element_get_static_pad(tee, "sink");
gst_pad_add_probe(tee_sinkpad, GST_PAD_PROBE_TYPE_EVENT_UPSTREAM,
drop_reconfigure_cb, NULL, NULL);
}
if (capsfilter) {
LINK_ELEMENTS(capsfilter, tee);
gst_element_sync_state_with_parent(tee);
gst_element_sync_state_with_parent(capsfilter);
LINK_ELEMENTS(source, capsfilter);
} else {
gst_element_sync_state_with_parent(tee);
LINK_ELEMENTS(source, tee);
}
gst_element_sync_state_with_parent(source);
_owr_media_source_set_element(media_source, source_bin);
priv->source_tee = tee;
}
done:
return ghostpad;
}
static void
dvb_base_bin_init (DvbBaseBin * dvbbasebin)
{
DvbBaseBinStream *stream;
GstPad *ghost, *pad;
int i;
dvbbasebin->dvbsrc = gst_element_factory_make ("dvbsrc", NULL);
dvbbasebin->buffer_queue = gst_element_factory_make ("queue", NULL);
dvbbasebin->tsparse = gst_element_factory_make ("tsparse", NULL);
g_object_set (dvbbasebin->buffer_queue, "max-size-buffers", 0,
"max-size-bytes", 0, "max-size-time", (guint64) 0, NULL);
gst_bin_add_many (GST_BIN (dvbbasebin), dvbbasebin->dvbsrc,
dvbbasebin->buffer_queue, dvbbasebin->tsparse, NULL);
gst_element_link_many (dvbbasebin->dvbsrc,
dvbbasebin->buffer_queue, dvbbasebin->tsparse, NULL);
/* Proxy dvbsrc signals */
g_signal_connect (dvbbasebin->dvbsrc, "tuning-start",
G_CALLBACK (tuning_start_signal_cb), dvbbasebin);
g_signal_connect (dvbbasebin->dvbsrc, "tuning-done",
G_CALLBACK (tuning_done_signal_cb), dvbbasebin);
g_signal_connect (dvbbasebin->dvbsrc, "tuning-fail",
G_CALLBACK (tuning_fail_signal_cb), dvbbasebin);
/* Expose tsparse source pad */
if (dvbbasebin->tsparse != NULL) {
pad = gst_element_get_static_pad (dvbbasebin->tsparse, "src");
ghost = gst_ghost_pad_new ("src", pad);
} else {
ghost = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
}
gst_element_add_pad (GST_ELEMENT (dvbbasebin), ghost);
dvbbasebin->programs = g_hash_table_new_full (g_direct_hash, g_direct_equal,
NULL, dvb_base_bin_program_destroy);
dvbbasebin->streams = g_hash_table_new_full (g_direct_hash, g_direct_equal,
NULL, g_free);
dvbbasebin->pmtlist = NULL;
dvbbasebin->pmtlist_changed = FALSE;
dvbbasebin->disposed = FALSE;
dvb_base_bin_reset (dvbbasebin);
/* add PAT, CAT, NIT, SDT, EIT, TDT to pids filter for dvbsrc */
i = 0;
while (initial_pids[i] >= 0) {
stream = dvb_base_bin_add_stream (dvbbasebin, (guint16) initial_pids[i]);
dvb_base_bin_ref_stream (stream);
i++;
}
dvb_base_bin_rebuild_filter (dvbbasebin);
g_rec_mutex_init (&dvbbasebin->lock);
dvbbasebin->task =
gst_task_new ((GstTaskFunction) dvb_base_bin_task, dvbbasebin, NULL);
gst_task_set_lock (dvbbasebin->task, &dvbbasebin->lock);
dvbbasebin->poll = gst_poll_new_timer ();
}
