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;
}
static void
gst_base_camera_src_dispose (GObject * object)
{
GstBaseCameraSrc *src = GST_BASE_CAMERA_SRC_CAST (object);
g_mutex_free (src->capturing_mutex);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
/**
* gst_wrapper_camera_bin_src_vidsrc_probe:
*
* Buffer probe called before sending each buffer to image queue.
*/
static gboolean
gst_wrapper_camera_bin_src_vidsrc_probe (GstPad * pad, GstBuffer * buffer,
gpointer data)
{
GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (data);
GstBaseCameraSrc *camerasrc = GST_BASE_CAMERA_SRC_CAST (self);
gboolean ret = FALSE;
GST_LOG_OBJECT (self, "Video probe, mode %d, capture status %d",
camerasrc->mode, self->video_rec_status);
/* TODO do we want to lock for every buffer? */
/*
* Note that we can use gst_pad_push_event here because we are a buffer
* probe.
*/
/* TODO shouldn't access this directly */
g_mutex_lock (camerasrc->capturing_mutex);
if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_DONE) {
/* NOP */
} else if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_STARTING) {
GstClockTime ts;
GST_DEBUG_OBJECT (self, "Starting video recording");
self->video_rec_status = GST_VIDEO_RECORDING_STATUS_RUNNING;
ts = GST_BUFFER_TIMESTAMP (buffer);
if (!GST_CLOCK_TIME_IS_VALID (ts))
ts = 0;
gst_pad_push_event (self->vidsrc, gst_event_new_new_segment (FALSE, 1.0,
GST_FORMAT_TIME, ts, -1, 0));
/* post preview */
GST_DEBUG_OBJECT (self, "Posting preview for video");
gst_base_camera_src_post_preview (camerasrc, buffer);
ret = TRUE;
} else if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_FINISHING) {
/* send eos */
GST_DEBUG_OBJECT (self, "Finishing video recording, pushing eos");
gst_pad_push_event (pad, gst_event_new_eos ());
self->video_rec_status = GST_VIDEO_RECORDING_STATUS_DONE;
gst_base_camera_src_finish_capture (camerasrc);
} else {
ret = TRUE;
}
g_mutex_unlock (camerasrc->capturing_mutex);
return ret;
}
static void
gst_base_camera_src_dispose (GObject * object)
{
GstBaseCameraBinSrc *src = GST_BASE_CAMERA_SRC_CAST (object);
g_mutex_free (src->capturing_mutex);
if (src->preview_pipeline) {
gst_camerabin_destroy_preview_pipeline (src->preview_pipeline);
src->preview_pipeline = NULL;
}
if (src->preview_caps)
gst_caps_replace (&src->preview_caps, NULL);
if (src->preview_filter) {
gst_object_unref (src->preview_filter);
src->preview_filter = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
/**
* check_and_replace_src
* @self: #GstWrapperCamerabinSrcCameraSrc object
*
* Checks if the current videosrc needs to be replaced
*/
static gboolean
check_and_replace_src (GstWrapperCameraBinSrc * self)
{
GstBin *cbin = GST_BIN_CAST (self);
GstBaseCameraSrc *bcamsrc = GST_BASE_CAMERA_SRC_CAST (self);
if (self->src_vid_src && self->src_vid_src == self->app_vid_src) {
GST_DEBUG_OBJECT (self, "No need to change current videosrc");
return TRUE;
}
if (self->src_vid_src) {
GST_DEBUG_OBJECT (self, "Removing old video source");
if (self->src_max_zoom_signal_id) {
g_signal_handler_disconnect (self->src_vid_src,
self->src_max_zoom_signal_id);
self->src_max_zoom_signal_id = 0;
}
if (self->src_event_probe_id) {
GstPad *pad;
pad = gst_element_get_static_pad (self->src_vid_src, "src");
gst_pad_remove_probe (pad, self->src_event_probe_id);
gst_object_unref (pad);
self->src_event_probe_id = 0;
}
gst_bin_remove (GST_BIN_CAST (self), self->src_vid_src);
self->src_vid_src = NULL;
}
GST_DEBUG_OBJECT (self, "Adding new video source");
/* Add application set or default video src element */
if (!(self->src_vid_src = gst_camerabin_setup_default_element (cbin,
self->app_vid_src, "autovideosrc", DEFAULT_VIDEOSRC,
"camerasrc-real-src"))) {
self->src_vid_src = NULL;
return FALSE;
} else {
GstElement *videoconvert;
if (!gst_bin_add (cbin, self->src_vid_src)) {
return FALSE;
}
/* check if we already have the next element to link to */
videoconvert = gst_bin_get_by_name (cbin, "src-videoconvert");
if (videoconvert) {
if (!gst_element_link_pads (self->src_vid_src, "src", videoconvert,
"sink")) {
return FALSE;
}
}
}
/* we listen for changes to max-zoom in the video src so that
* we can proxy them to the basecamerasrc property */
if (g_object_class_find_property (G_OBJECT_GET_CLASS (bcamsrc), "max-zoom")) {
self->src_max_zoom_signal_id =
g_signal_connect (G_OBJECT (self->src_vid_src), "notify::max-zoom",
(GCallback) gst_wrapper_camera_bin_src_max_zoom_cb, bcamsrc);
}
/* add a buffer probe to the src elemento to drop EOS from READY->NULL */
{
GstPad *pad;
pad = gst_element_get_static_pad (self->src_vid_src, "src");
self->src_event_probe_id =
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
gst_wrapper_camera_src_src_event_probe, gst_object_ref (self),
gst_object_unref);
gst_object_unref (pad);
}
return TRUE;
}
/**
* gst_wrapper_camera_bin_src_vidsrc_probe:
*
* Buffer probe called before sending each buffer to image queue.
*/
static GstPadProbeReturn
gst_wrapper_camera_bin_src_vidsrc_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer data)
{
GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (data);
GstBaseCameraSrc *camerasrc = GST_BASE_CAMERA_SRC_CAST (self);
GstPadProbeReturn ret = GST_PAD_PROBE_DROP;
GstBuffer *buffer = GST_BUFFER (info->data);
GST_LOG_OBJECT (self, "Video probe, mode %d, capture status %d",
camerasrc->mode, self->video_rec_status);
/* TODO do we want to lock for every buffer? */
/*
* Note that we can use gst_pad_push_event here because we are a buffer
* probe.
*/
/* TODO shouldn't access this directly */
g_mutex_lock (&camerasrc->capturing_mutex);
if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_DONE) {
/* NOP */
} else if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_STARTING) {
GstClockTime ts;
GstSegment segment;
GstCaps *caps;
GstSample *sample;
GST_DEBUG_OBJECT (self, "Starting video recording");
self->video_rec_status = GST_VIDEO_RECORDING_STATUS_RUNNING;
ts = GST_BUFFER_TIMESTAMP (buffer);
if (!GST_CLOCK_TIME_IS_VALID (ts))
ts = 0;
gst_segment_init (&segment, GST_FORMAT_TIME);
segment.start = ts;
gst_pad_push_event (self->vidsrc, gst_event_new_segment (&segment));
/* post preview */
GST_DEBUG_OBJECT (self, "Posting preview for video");
caps = gst_pad_get_current_caps (pad);
sample = gst_sample_new (buffer, caps, NULL, NULL);
gst_base_camera_src_post_preview (camerasrc, sample);
gst_caps_unref (caps);
gst_sample_unref (sample);
ret = GST_PAD_PROBE_OK;
} else if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_FINISHING) {
GstPad *peer;
/* send eos */
GST_DEBUG_OBJECT (self, "Finishing video recording, pushing eos");
peer = gst_pad_get_peer (self->vidsrc);
if (peer) {
/* send to the peer as we don't want our pads with eos flag */
gst_pad_send_event (peer, gst_event_new_eos ());
gst_object_unref (peer);
} else {
GST_WARNING_OBJECT (camerasrc, "No peer pad for vidsrc");
}
self->video_rec_status = GST_VIDEO_RECORDING_STATUS_DONE;
gst_base_camera_src_finish_capture (camerasrc);
} else {
ret = GST_PAD_PROBE_OK;
}
g_mutex_unlock (&camerasrc->capturing_mutex);
return ret;
}
