static gboolean
thumbnail_cb (gpointer user)
{
GstSample *b = NULL;
GstCaps *caps;
GESPipeline *p;
p = GES_PIPELINE (user);
caps = gst_caps_from_string ("image/jpeg");
GST_INFO ("getting thumbnails");
/* check raw rgb use-case with scaling */
b = ges_pipeline_get_thumbnail_rgb24 (p, 320, 240);
g_assert (b);
gst_sample_unref (b);
/* check encoding use-case from caps */
b = NULL;
b = ges_pipeline_get_thumbnail (p, caps);
g_assert (b);
gst_sample_unref (b);
g_assert (ges_pipeline_save_thumbnail (p, -1, -1, (gchar *)
"image/jpeg", (gchar *) TEST_PATH, NULL));
g_assert (g_file_test (TEST_PATH, G_FILE_TEST_EXISTS));
g_unlink (TEST_PATH);
gst_caps_unref (caps);
return FALSE;
}
/**
* ges_pipeline_save_thumbnail:
* @self: a #GESPipeline in %GST_STATE_PLAYING or %GST_STATE_PAUSED
* @width: the requested width or -1 for native size
* @height: the requested height or -1 for native size
* @format: a string specifying the desired mime type (for example,
* image/jpeg)
* @location: the path to save the thumbnail
* @error: (out) (allow-none) (transfer full): An error to be set in case
* something wrong happens or %NULL
*
* Saves the current frame to the specified @location.
*
* Returns: %TRUE if the thumbnail was properly save, else %FALSE.
*/
gboolean
ges_pipeline_save_thumbnail (GESPipeline * self, int width, int
height, const gchar * format, const gchar * location, GError ** error)
{
GstMapInfo map_info;
GstBuffer *b;
GstSample *sample;
GstCaps *caps;
gboolean res = TRUE;
g_return_val_if_fail (GES_IS_PIPELINE (self), FALSE);
caps = gst_caps_from_string (format);
if (width > 1)
gst_caps_set_simple (caps, "width", G_TYPE_INT, width, NULL);
if (height > 1)
gst_caps_set_simple (caps, "height", G_TYPE_INT, height, NULL);
if (!(sample = ges_pipeline_get_thumbnail (self, caps))) {
gst_caps_unref (caps);
return FALSE;
}
b = gst_sample_get_buffer (sample);
if (gst_buffer_map (b, &map_info, GST_MAP_READ)) {
if (!g_file_set_contents (location, (const char *) map_info.data,
map_info.size, error)) {
GST_WARNING ("Could not save thumbnail: %s",
error ? (*error)->message : "");
res = FALSE;
}
}
gst_caps_unref (caps);
gst_buffer_unmap (b, &map_info);
gst_buffer_unref (b);
gst_sample_unref (sample);
return res;
}
GstSample *
ges_pipeline_get_thumbnail_rgb24 (GESPipeline * self, gint width, gint height)
{
GstSample *ret;
GstCaps *caps;
g_return_val_if_fail (GES_IS_PIPELINE (self), FALSE);
caps = gst_caps_new_simple ("video/x-raw", "format", G_TYPE_STRING,
"RGB", NULL);
if (width != -1)
gst_caps_set_simple (caps, "width", G_TYPE_INT, (gint) width, NULL);
if (height != -1)
gst_caps_set_simple (caps, "height", G_TYPE_INT, (gint) height, NULL);
ret = ges_pipeline_get_thumbnail (self, caps);
gst_caps_unref (caps);
return ret;
}
