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authorJulien Moutte <julien@moutte.net>2003-12-07 13:29:10 +0000
committerJulien Moutte <julien@moutte.net>2003-12-07 13:29:10 +0000
commitdbe874d5a0e84c1cf066c4047f9b00e0cabe2e6a (patch)
tree800701a9e8dab957f4c2e1d3bad2d55ff66895fb /gst-libs/gst/play/gstplay.c
parent9bda5831b8818d0fe4286fdb1217085913277c0d (diff)
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Adding my work in progress rewrite from scratch of libgstplay.
Original commit message from CVS: Adding my work in progress rewrite from scratch of libgstplay.
Diffstat (limited to 'gst-libs/gst/play/gstplay.c')
-rw-r--r--gst-libs/gst/play/gstplay.c439
1 files changed, 439 insertions, 0 deletions
diff --git a/gst-libs/gst/play/gstplay.c b/gst-libs/gst/play/gstplay.c
new file mode 100644
index 00000000..09f143e0
--- /dev/null
+++ b/gst-libs/gst/play/gstplay.c
@@ -0,0 +1,439 @@
+/* GStreamer
+ * Copyright (C) 2003 Julien Moutte <julien@moutte.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstplay.h"
+
+#include <gst/xoverlay/xoverlay.h>
+#include <gst/navigation/navigation.h>
+#include <gst/mixer/mixer.h>
+
+enum
+{
+ TIME_TICK,
+ STREAM_LENGTH,
+ HAVE_VIDEO_SIZE,
+ LAST_SIGNAL
+};
+
+static guint gst_play_signals[LAST_SIGNAL] = { 0 };
+
+static GstPipelineClass *parent_class = NULL;
+
+/* ======================================================= */
+/* */
+/* Private Methods */
+/* */
+/* ======================================================= */
+
+static gboolean
+gst_play_pipeline_setup (GstPlay *play)
+{
+ GstElement *work_thread, *video_thread;
+ GstElement *video_queue, *video_colorspace, *video_scaler, *video_sink;
+ GstElement *audio_thread, *audio_queue, *audio_volume, *audio_sink;
+ GstElement *audio_tee, *vis_thread, *vis_queue;
+ GstPad *audio_tee_pad1, *audio_tee_pad2, *vis_thread_pad, *audio_sink_pad;
+
+ g_return_val_if_fail (play != NULL, FALSE);
+ g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
+
+ work_thread = gst_thread_new ("work_thread");
+ if (!GST_IS_THREAD (work_thread))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "work_thread", work_thread);
+ gst_bin_add (GST_BIN (play), work_thread);
+
+ /* Creating our video output bin
+ { queue ! colorspace ! videoscale ! fakesink } */
+ video_thread = gst_thread_new ("video_thread");
+ if (!GST_IS_THREAD (video_thread))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "video_thread", video_thread);
+ gst_bin_add (GST_BIN (work_thread), video_thread);
+
+ /* Buffer queue for our video thread */
+ video_queue = gst_element_factory_make ("queue", "video_queue");
+ if (!GST_IS_ELEMENT (video_queue))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "video_queue", video_queue);
+
+ /* Colorspace conversion */
+ /* FIXME: Use ffcolorspace and fallback to Hermes on failure ?*/
+ video_colorspace = gst_element_factory_make ("colorspace",
+ "video_colorspace");
+ if (!GST_IS_ELEMENT (video_colorspace))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "video_colorspace",
+ video_colorspace);
+
+ /* Software scaling of video stream */
+ video_scaler = gst_element_factory_make ("videoscale", "video_scaler");
+ if (!GST_IS_ELEMENT (video_scaler))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "video_scaler", video_scaler);
+
+ /* Placeholder for future video sink bin */
+ video_sink = gst_element_factory_make ("fakesink", "video_sink");
+ if (!GST_IS_ELEMENT (video_sink))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "video_sink", video_sink);
+
+ /* Linking, Adding, Ghosting */
+ gst_element_link_many (video_queue, video_colorspace,
+ video_scaler, video_sink, NULL);
+ gst_bin_add_many (GST_BIN (video_thread), video_queue, video_colorspace,
+ video_scaler, video_sink, NULL);
+ gst_element_add_ghost_pad (video_thread,
+ gst_element_get_pad (video_queue, "sink"),
+ "sink");
+
+ /* Creating our audio output bin
+ { queue ! volume ! tee ! { queue ! goom } ! fakesink } */
+ audio_thread = gst_thread_new ("audio_thread");
+ if (!GST_IS_THREAD (audio_thread))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "audio_thread", audio_thread);
+ gst_bin_add (GST_BIN (work_thread), audio_thread);
+
+ /* Buffer queue for our audio thread */
+ audio_queue = gst_element_factory_make ("queue", "audio_queue");
+ if (!GST_IS_ELEMENT (audio_queue))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "audio_queue", audio_queue);
+
+ /* Volume control */
+ audio_volume = gst_element_factory_make ("volume", "audio_volume");
+ if (!GST_IS_ELEMENT (audio_volume))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "audio_volume", audio_volume);
+
+ /* Duplicate audio signal to sink and visualization thread */
+ audio_tee = gst_element_factory_make ("tee", "audio_tee");
+ if (!GST_IS_ELEMENT (audio_tee))
+ return FALSE;
+
+ audio_tee_pad1 = gst_element_get_request_pad (audio_tee, "src%d");
+ audio_tee_pad2 = gst_element_get_request_pad (audio_tee, "src%d");
+ g_hash_table_insert (play->elements, "audio_tee_pad1", audio_tee_pad1);
+ g_hash_table_insert (play->elements, "audio_tee_pad2", audio_tee_pad2);
+ g_hash_table_insert (play->elements, "audio_tee", audio_tee);
+
+ /* Placeholder for future audio sink bin */
+ audio_sink = gst_element_factory_make ("fakesink", "audio_sink");
+ if (!GST_IS_ELEMENT (audio_sink))
+ return FALSE;
+
+ audio_sink_pad = gst_element_get_pad (audio_sink, "sink");
+ g_hash_table_insert (play->elements, "audio_sink_pad", audio_sink_pad);
+ g_hash_table_insert (play->elements, "audio_sink", audio_sink);
+
+ /* Visualization thread */
+ vis_thread = gst_thread_new ("vis_thread");
+ if (!GST_IS_THREAD (vis_thread))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "vis_thread", vis_thread);
+
+ /* Buffer queue for our visualization thread */
+ vis_queue = gst_element_factory_make ("queue", "vis_queue");
+ if (!GST_IS_ELEMENT (vis_queue))
+ return FALSE;
+
+ g_hash_table_insert (play->elements, "vis_queue", vis_queue);
+
+ /* Adding, Ghosting in visualization */
+ gst_bin_add (GST_BIN (vis_thread), vis_queue);
+ vis_thread_pad = gst_element_add_ghost_pad (vis_thread,
+ gst_element_get_pad (vis_queue, "sink"),
+ "sink");
+ g_hash_table_insert (play->elements, "vis_thread_pad", vis_thread_pad);
+
+
+ /* Linking, Adding, Ghosting in audio */
+ gst_element_link_many (audio_queue, audio_volume, audio_tee, NULL);
+ gst_pad_link (audio_tee_pad1, audio_sink_pad);
+ gst_bin_add_many (GST_BIN (audio_thread), audio_queue, audio_volume,
+ audio_tee, vis_thread, audio_sink);
+ gst_element_add_ghost_pad (audio_thread,
+ gst_element_get_pad (audio_queue, "sink"),
+ "sink");
+
+ return TRUE;
+}
+
+/* =========================================== */
+/* */
+/* Interfaces */
+/* */
+/* =========================================== */
+
+static gboolean
+gst_play_interface_supported (GstInterface *iface, GType type)
+{
+ g_assert (type == GST_TYPE_NAVIGATION ||
+ type == GST_TYPE_X_OVERLAY ||
+ type == GST_TYPE_MIXER);
+ return TRUE;
+}
+
+static void
+gst_play_interface_init (GstInterfaceClass *klass)
+{
+ klass->supported = gst_play_interface_supported;
+}
+
+static void
+gst_play_navigation_send_event (GstNavigation *navigation,
+ GstStructure *structure)
+{
+
+}
+
+static void
+gst_play_navigation_init (GstNavigationInterface *iface)
+{
+ iface->send_event = gst_play_navigation_send_event;
+}
+
+static void
+gst_play_set_xwindow_id (GstXOverlay *overlay, XID xwindow_id)
+{
+
+}
+
+static void
+gst_play_xoverlay_init (GstXOverlayClass *iface)
+{
+ iface->set_xwindow_id = gst_play_set_xwindow_id;
+}
+
+static void
+gst_play_mixer_init (GstMixerClass *klass)
+{
+ klass->list_tracks = NULL;
+ klass->set_volume = NULL;
+ klass->get_volume = NULL;
+ klass->set_mute = NULL;
+ klass->set_record = NULL;
+}
+
+/* =========================================== */
+/* */
+/* Init & Dispose & Class init */
+/* */
+/* =========================================== */
+
+static void
+gst_play_dispose (GObject *object)
+{
+ GstPlay *play;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (GST_IS_PLAY (object));
+
+ play = GST_PLAY (object);
+
+ if (play->location)
+ {
+ g_free (play->location);
+ play->location = NULL;
+ }
+
+ if (play->elements)
+ {
+ g_hash_table_destroy (play->elements);
+ play->elements = NULL;
+ }
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_play_init (GstPlay *play)
+{
+ play->location = NULL;
+ play->elements = g_hash_table_new (g_str_hash, g_str_equal);
+ if (!gst_play_pipeline_setup (play))
+ g_warning ("libgstplay: failed initializing pipeline");
+}
+
+static void
+gst_play_class_init (GstPlayClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ gobject_class->dispose = gst_play_dispose;
+
+ gst_play_signals[TIME_TICK] =
+ g_signal_new ("time_tick", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GstPlayClass, time_tick), NULL, NULL,
+ gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64);
+ gst_play_signals[STREAM_LENGTH] =
+ g_signal_new ("stream_length", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GstPlayClass, stream_length), NULL, NULL,
+ gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64);
+ gst_play_signals[HAVE_VIDEO_SIZE] =
+ g_signal_new ("have_video_size", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GstPlayClass, have_video_size), NULL, NULL,
+ gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
+ G_TYPE_INT, G_TYPE_INT);
+}
+
+/* ======================================================= */
+/* */
+/* Public Methods */
+/* */
+/* ======================================================= */
+
+/**
+ * gst_play_set_location:
+ * @play: a #GstPlay.
+ * @location: a const #char* indicating location to play
+ *
+ * Set location of @play to @location.
+ *
+ * Returns: TRUE if location was set successfully.
+ */
+gboolean
+gst_play_set_location (GstPlay *play, const char *location)
+{
+ g_return_val_if_fail (play != NULL, FALSE);
+ g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
+
+ if (play->location)
+ g_free (play->location);
+
+ play->location = g_strdup (location);
+
+ if (GST_STATE (GST_ELEMENT (play)) != GST_STATE_READY)
+ gst_element_set_state (GST_ELEMENT (play), GST_STATE_READY);
+
+ return TRUE;
+}
+
+/**
+ * gst_play_get_location:
+ * @play: a #GstPlay.
+ *
+ * Get current location of @play.
+ *
+ * Returns: a const #char* pointer to current location.
+ */
+char *
+gst_play_get_location (GstPlay *play)
+{
+ g_return_val_if_fail (play != NULL, NULL);
+ g_return_val_if_fail (GST_IS_PLAY (play), NULL);
+ return g_strdup (play->location);
+}
+
+/**
+ * gst_play_seek_to_time:
+ * @play: a #GstPlay.
+ * @time_nanos: a #gint64 indicating a time position.
+ *
+ * Performs a seek on @play until @time_nanos.
+ */
+gboolean
+gst_play_seek_to_time (GstPlay * play, gint64 time_nanos)
+{
+ g_return_val_if_fail (play != NULL, FALSE);
+ g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
+
+ return TRUE;
+}
+
+/* =========================================== */
+/* */
+/* Object typing & Creation */
+/* */
+/* =========================================== */
+
+GType
+gst_play_get_type (void)
+{
+ static GType play_type = 0;
+
+ if (!play_type)
+ {
+ static const GTypeInfo play_info = {
+ sizeof (GstPlayClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_play_class_init,
+ NULL,
+ NULL,
+ sizeof (GstPlay),
+ 0,
+ (GInstanceInitFunc) gst_play_init,
+ NULL
+ };
+ static const GInterfaceInfo iface_info = {
+ (GInterfaceInitFunc) gst_play_interface_init,
+ NULL,
+ NULL,
+ };
+ static const GInterfaceInfo navigation_info = {
+ (GInterfaceInitFunc) gst_play_navigation_init,
+ NULL,
+ NULL,
+ };
+ static const GInterfaceInfo overlay_info = {
+ (GInterfaceInitFunc) gst_play_xoverlay_init,
+ NULL,
+ NULL,
+ };
+ static const GInterfaceInfo mixer_info = {
+ (GInterfaceInitFunc) gst_play_mixer_init,
+ NULL,
+ NULL,
+ };
+
+ play_type = g_type_register_static (GST_TYPE_PIPELINE, "GstPlay",
+ &play_info, 0);
+
+ g_type_add_interface_static (play_type, GST_TYPE_INTERFACE,
+ &iface_info);
+ g_type_add_interface_static (play_type, GST_TYPE_NAVIGATION,
+ &navigation_info);
+ g_type_add_interface_static (play_type, GST_TYPE_X_OVERLAY,
+ &overlay_info);
+ g_type_add_interface_static (play_type, GST_TYPE_MIXER,
+ &mixer_info);
+ }
+
+ return play_type;
+}