void owr_image_server_add_image_renderer(OwrImageServer *image_server,
OwrImageRenderer *image_renderer, const gchar *tag)
{
OwrImageServerPrivate *priv;
g_return_if_fail(OWR_IS_IMAGE_SERVER(image_server));
g_return_if_fail(OWR_IS_IMAGE_RENDERER(image_renderer));
g_return_if_fail(tag && tag[0]);
priv = image_server->priv;
g_mutex_lock(&priv->image_renderers_mutex);
if (!g_hash_table_contains(priv->image_renderers, tag)) {
g_hash_table_insert(priv->image_renderers, g_strdup(tag), image_renderer);
g_object_ref(image_renderer);
} else
g_warning("Image renderer not added, an image renderer is already added for this tag");
g_mutex_unlock(&priv->image_renderers_mutex);
if (!priv->socket_service_is_started) {
g_socket_listener_add_address(G_SOCKET_LISTENER(priv->socket_service),
g_inet_socket_address_new(g_inet_address_new_from_string("127.0.0.1"),
(guint16)priv->port), G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP,
NULL, NULL, NULL);
g_socket_service_start(priv->socket_service);
priv->socket_service_is_started = TRUE;
}
}
/**
* _owr_image_renderer_pull_bmp_image:
* @image_renderer:
*
* Returns: (transfer full):
*/
GBytes * _owr_image_renderer_pull_bmp_image(OwrImageRenderer *image_renderer)
{
GstCaps *caps;
GstSample *sample;
GstBuffer *buf = NULL;
GstMapInfo info;
GstStructure *s;
guint bufsize, total_size, src_rowsize, dest_rowsize, image_width, image_height;
guint8 *image_data, *src_data, *srcpos, *destpos;
gboolean ret, disabled = FALSE;
g_return_val_if_fail(OWR_IS_IMAGE_RENDERER(image_renderer), NULL);
if (!image_renderer->priv->appsink)
return NULL;
sample = gst_app_sink_pull_sample(GST_APP_SINK(image_renderer->priv->appsink));
if (!sample)
return NULL;
buf = gst_sample_get_buffer(sample);
if (!buf) {
gst_sample_unref(sample);
return NULL;
}
caps = gst_sample_get_caps(sample);
s = gst_caps_get_structure(caps, 0);
ret = gst_structure_get_int(s, "width", (gint *)&image_width);
ret |= gst_structure_get_int(s, "height", (gint *)&image_height);
if (!ret) {
g_critical("%s Could not get bmp video dimensions from configured caps on appsink",
__FUNCTION__);
image_width = 0;
image_height = 0;
}
if (!gst_buffer_map(buf, &info, GST_MAP_READ))
g_assert_not_reached();
g_assert(info.data);
g_object_get(image_renderer, "disabled", &disabled, NULL);
bufsize = (guint) info.size;
total_size = BMP_HEADER_SIZE + bufsize;
image_data = disabled ? g_malloc0(total_size) : g_malloc(total_size);
if (!image_data) {
g_critical("%s Allocate mem failed (g_malloc(total_size))", __FUNCTION__);
return NULL;
}
fill_bmp_header(image_data, image_width, image_height);
src_rowsize = DIB_BITS_PER_PIXEL * image_width / 8;
dest_rowsize = ((DIB_BITS_PER_PIXEL * image_width + 31) / 32) * 4;
src_data = info.data;
destpos = image_data + total_size;
if (!disabled) {
for (srcpos = src_data; srcpos < src_data + bufsize; srcpos += src_rowsize) {
destpos -= dest_rowsize;
memcpy(destpos, srcpos, src_rowsize);
}
}
gst_buffer_unmap(buf, &info);
gst_sample_unref(sample);
return g_bytes_new_take(image_data, total_size);
}