#endif
#include "gstgdkanimation.h"
+#include <gst/gstinfo.h>
#include <stdio.h>
+typedef struct {
+ /* stuff gdk throws at us and we're supposed to keep */
+ GdkPixbufModuleSizeFunc size_func;
+ GdkPixbufModulePreparedFunc prepared_func;
+ GdkPixbufModuleUpdatedFunc updated_func;
+ gpointer user_data;
+ /* our own stuff - we're much better at keeping fields small :p */
+ GstGdkAnimation * ani;
+ gboolean initialized;
+} GstLoaderContext;
+
+GST_DEBUG_CATEGORY_STATIC (gst_loader_debug);
+#define GST_CAT_DEFAULT gst_loader_debug
+
+static gboolean
+gst_loader_init (GError **error)
+{
+ static gboolean inited = FALSE;
+
+ if (inited)
+ return TRUE;
+
+ if (!g_thread_supported ()) {
+ g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_FAILED,
+ "The GStreamer loader requires threading support.");
+ return FALSE;
+ }
+
+ if (!gst_init_check (0, NULL)) {
+ g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_FAILED,
+ "GStreamer could not be initialized.");
+ return FALSE;
+ }
+
+ inited = TRUE;
+ GST_DEBUG_CATEGORY_INIT (gst_loader_debug, "gstloader", 0, "entry point debugging for the GStreamer gdk pixbuf loader");
+ return TRUE;
+}
+static gpointer
+gst_loader_begin_load (GdkPixbufModuleSizeFunc size_func, GdkPixbufModulePreparedFunc prepared_func,
+ GdkPixbufModuleUpdatedFunc updated_func, gpointer user_data, GError **error)
+{
+ GstLoaderContext *context;
+
+ if (!gst_loader_init (error))
+ return NULL;
+
+ context = g_new (GstLoaderContext, 1);
+ context->size_func = size_func;
+ context->prepared_func = prepared_func;
+ context->updated_func = updated_func;
+ context->user_data = user_data;
+ context->ani = gst_gdk_animation_new (error);
+ context->initialized = FALSE;
+
+ if (!context->ani) {
+ GST_WARNING ("creating animation failed");
+ g_free (context);
+ return NULL;
+ }
+ GST_LOG_OBJECT (context->ani, "begin loading");
+ return context;
+}
+static gboolean
+gst_loader_load_increment (gpointer context_pointer, const guchar *buf, guint size, GError **error)
+{
+ GdkPixbufAnimationIter *iter;
+ GstLoaderContext *context = (GstLoaderContext *) context_pointer;
+
+ GST_LOG_OBJECT (context->ani, "load increment: %u bytes", size);
+ gst_gdk_animation_add_data (context->ani, buf, size);
+ if (!context->initialized && (iter = gdk_pixbuf_animation_get_iter (
+ GDK_PIXBUF_ANIMATION (context->ani), NULL)) != NULL) {
+ int width = gdk_pixbuf_animation_get_width (GDK_PIXBUF_ANIMATION (context->ani));
+ int height = gdk_pixbuf_animation_get_height (GDK_PIXBUF_ANIMATION (context->ani));
+ GdkPixbuf *pixbuf = gdk_pixbuf_animation_get_static_image (GDK_PIXBUF_ANIMATION (context->ani));
+
+ g_object_unref (iter);
+ GST_LOG_OBJECT (context->ani, "initializing loader");
+ if (context->size_func) {
+ GST_LOG_OBJECT (context->ani, "calling size_func %p", context->size_func);
+ context->size_func (&width, &height, context->user_data);
+ }
+
+ if (context->prepared_func) {
+ GST_LOG_OBJECT (context->ani, "calling prepared_func %p", context->prepared_func);
+ context->prepared_func (pixbuf, GDK_PIXBUF_ANIMATION (context->ani), context->user_data);
+ }
+
+ context->initialized = TRUE;
+ }
+
+ return TRUE;
+}
+static gboolean
+gst_loader_stop_load (gpointer context_pointer, GError **error)
+{
+ GstLoaderContext *context = (GstLoaderContext *) context_pointer;
+
+ GST_LOG_OBJECT (context->ani, "stop loading");
+ gst_gdk_animation_done_adding (context->ani);
+ g_object_unref (context->ani);
+ g_free (context);
+
+ return TRUE;
+}
+
static GdkPixbufAnimation *
gst_loader_load_animation (FILE *f, GError **error)
{
- return gst_gdk_animation_new_from_file (f, error);
+ guchar data[4096];
+ guint size;
+ GdkPixbufAnimationIter *iter;
+ GstGdkAnimation *ani;
+
+ if (!gst_loader_init (error))
+ return NULL;
+
+ GST_LOG ("load_animation");
+ ani = gst_gdk_animation_new (error);
+ if (!ani)
+ return NULL;
+
+ while ((size = fread (data, 1, 4096, f)) > 0) {
+ if (!gst_gdk_animation_add_data (ani, data, size)) {
+ g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_FAILED,
+ "could not add more data to animation"); /* our errors suck ;) */
+ g_object_unref (ani);
+ GST_WARNING ("load_animation failed");
+ return NULL;
+ }
+ }
+ gst_gdk_animation_done_adding (ani);
+ iter = gdk_pixbuf_animation_get_iter (GDK_PIXBUF_ANIMATION (ani), NULL);
+ if (iter == NULL) {
+ g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
+ "could not create an image");
+ g_object_unref (ani);
+ GST_INFO ("could not create an image");
+ return NULL;
+ }
+ g_object_unref (iter);
+ GST_LOG_OBJECT (ani, "load_animation succeeded");
+ return GDK_PIXBUF_ANIMATION (ani);
}
void
fill_vtable (GdkPixbufModule *module)
{
- if (gst_init_check (0, NULL)) {
- module->load_animation = gst_loader_load_animation;
- }
+ module->begin_load = gst_loader_begin_load;
+ module->load_increment = gst_loader_load_increment;
+ module->stop_load = gst_loader_stop_load;
+ module->load_animation = gst_loader_load_animation;
}
void
fill_info (GdkPixbufFormat *info)
remove (ani->temp_location);
g_free (ani->temp_location);
}
+ if (ani->pixbuf) {
+ g_object_unref (ani->pixbuf);
+ ani->pixbuf = NULL;
+ }
G_OBJECT_CLASS (parent_class)->finalize (object);
}
-GdkPixbufAnimation *
-gst_gdk_animation_new_from_file (FILE *f, GError **error)
+GstGdkAnimation *
+gst_gdk_animation_new (GError **error)
{
- GdkPixbufAnimationIter *iter;
- GTimeVal tv;
- int fd2;
- guint8 data[4096];
- guint size;
- int fd = fileno (f);
GstGdkAnimation *ani = GST_GDK_ANIMATION (g_object_new (GST_TYPE_GDK_ANIMATION, NULL));
- fd2 = g_file_open_tmp (NULL, &ani->temp_location, error);
- if (fd2 == -1)
+ ani->temp_fd = g_file_open_tmp (NULL, &ani->temp_location, error);
+ if (ani->temp_fd == 0) {
+ g_object_unref (ani);
return NULL;
- while ((size = read (fd, data, 4096)) > 0) {
- if (write (fd2, data, size) != size)
- break;
}
- close (fd2);
-
- /* we need some info that is only provided by iters */
- g_get_current_time (&tv);
- iter = gst_gdk_animation_get_iter (GDK_PIXBUF_ANIMATION (ani), &tv);
- g_object_unref (iter);
-
- return GDK_PIXBUF_ANIMATION (ani);
+
+ return ani;
+}
+gboolean
+gst_gdk_animation_add_data (GstGdkAnimation *ani, const guint8 *data, guint size)
+{
+ return (write (ani->temp_fd, data, size) == size);
+}
+void
+gst_gdk_animation_done_adding (GstGdkAnimation *ani)
+{
+ close (ani->temp_fd);
+ ani->temp_fd = 0;
}
static gboolean
gst_gdk_animation_is_static_image (GdkPixbufAnimation *animation)
static GdkPixbuf*
gst_gdk_animation_get_static_image (GdkPixbufAnimation *animation)
{
- return NULL;
+ GstGdkAnimation *ani = GST_GDK_ANIMATION (animation);
+
+ return ani->pixbuf;
}
static void
if (!(autoplugger = gst_element_factory_make ("spider", "autoplugger")))
goto error;
gst_bin_add (GST_BIN (ret), autoplugger);
- gst_element_link (src, autoplugger);
+ if (!gst_element_link (src, autoplugger))
+ goto error;
if (!(colorspace = gst_element_factory_make ("colorspace", "colorspace")))
goto error;
gst_bin_add (GST_BIN (ret), colorspace);
- gst_element_link (autoplugger, colorspace);
+ if (!gst_element_link (autoplugger, colorspace))
+ goto error;
if (!(sink = gst_element_factory_make ("fakesink", "sink")))
goto error;
g_object_set (sink, "signal-handoffs", TRUE, NULL);
g_signal_connect (sink, "handoff", (GCallback) got_handoff, iter);
gst_bin_add (GST_BIN (ret), sink);
- gst_element_link_filtered (colorspace, sink, caps);
- gst_element_set_state (ret, GST_STATE_PLAYING);
+ if (!gst_element_link_filtered (colorspace, sink, caps))
+ goto error;
+ if (gst_element_set_state (ret, GST_STATE_PLAYING) != GST_STATE_SUCCESS)
+ goto error;
return ret;
error:
g_assert (data_amount >= 0);
g_assert (gst_element_query (gst_bin_get_by_name (GST_BIN (iter->pipeline), "source"),
GST_QUERY_POSITION, &bytes, &offset));
- if (data_amount - offset > GST_GDK_BUFFER_SIZE) /* random number */
+ if (data_amount - offset > GST_GDK_BUFFER_SIZE)
return TRUE;
return FALSE;
do {
GST_LOG_OBJECT (iter, "iterating...");
- if (!gst_gdk_animation_iter_may_advance (iter))
- return FALSE;
+ if (!gst_gdk_animation_iter_may_advance (iter)) {
+ GST_LOG_OBJECT (iter, "no more data available");
+ break;
+ }
if (!gst_bin_iterate (GST_BIN (iter->pipeline))) {
GST_LOG_OBJECT (iter, "iterating done, setting EOS");
iter->eos = TRUE;
break;
}
} while (last == g_queue_peek_tail (iter->buffers));
- return TRUE;
+ return last != g_queue_peek_tail (iter->buffers);
}
static void
pixbuf_destroy_notify (guchar *pixels, gpointer data)
static GdkPixbufAnimationIter*
gst_gdk_animation_get_iter (GdkPixbufAnimation *anim, const GTimeVal *start_time)
{
+ GstGdkAnimation *ani = GST_GDK_ANIMATION (anim);
GstGdkAnimationIter *iter;
+ if (ani->temp_fd != 0 && lseek (ani->temp_fd, 0, SEEK_CUR) < GST_GDK_BUFFER_SIZE)
+ return NULL;
+
iter = g_object_new (GST_TYPE_GDK_ANIMATION_ITER, NULL);
iter->start = *start_time;
- iter->ani = GST_GDK_ANIMATION (anim);
+ iter->ani = ani;
+ g_object_ref (ani);
iter->pipeline = gst_gdk_animation_iter_create_pipeline (iter);
- if (iter->pipeline == NULL) {
- g_object_unref (iter);
- return NULL;
- }
+ if (iter->pipeline == NULL)
+ goto error;
- g_object_ref (iter->ani);
- gst_gdk_animation_get_more_buffers (iter);
+ if (!gst_gdk_animation_get_more_buffers (iter))
+ goto error;
+
gst_gdk_animation_iter_create_pixbuf (iter);
+ if (!ani->pixbuf) {
+ /* set our static image */
+ g_object_ref (iter->pixbuf);
+ ani->pixbuf = iter->pixbuf;
+ }
return GDK_PIXBUF_ANIMATION_ITER (iter);
+
+error:
+ g_object_unref (iter);
+ return NULL;
}
static gboolean
gst_gdk_animation_iter_advance (GdkPixbufAnimationIter *anim_iter, const GTimeVal *current_time)
gchar * temp_location;
/* file descriptor to temporary file or 0 if we're done writing */
int temp_fd;
- /* functions to notify the loader */
-
/* size of image */
gint width;
gint height;
gint bpp;
+ /* static image we use */
+ GdkPixbuf * pixbuf;
};
struct _GstGdkAnimationClass
GdkPixbufAnimationClass parent_class;
};
-GType gst_gdk_animation_get_type (void);
+GType gst_gdk_animation_get_type (void);
+
+GstGdkAnimation * gst_gdk_animation_new (GError **error);
-GdkPixbufAnimation *gst_gdk_animation_new_from_file (FILE *f, GError **error);
+gboolean gst_gdk_animation_add_data (GstGdkAnimation * ani,
+ const guint8 * data,
+ guint size);
+void gst_gdk_animation_done_adding (GstGdkAnimation * ani);
#define GST_TYPE_GDK_ANIMATION_ITER (gst_gdk_animation_iter_get_type ())
projects / platform / upstream / gst-plugins-good.git / commitdiff