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Original commit message from CVS: * gst/playback/gstplaybin.c: (gen_vis_element): Remove some wrong code. Doesn't work yet.
869 lines
28 KiB
C
869 lines
28 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include "gstplaybasebin.h"
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GST_DEBUG_CATEGORY_STATIC (gst_play_bin_debug);
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#define GST_CAT_DEFAULT gst_play_bin_debug
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#define GST_TYPE_PLAY_BIN (gst_play_bin_get_type())
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#define GST_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAY_BIN,GstPlayBin))
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#define GST_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PLAY_BIN,GstPlayBinClass))
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#define GST_IS_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAY_BIN))
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#define GST_IS_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BIN))
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#define VOLUME_MAX_DOUBLE 4.0
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typedef struct _GstPlayBin GstPlayBin;
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typedef struct _GstPlayBinClass GstPlayBinClass;
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struct _GstPlayBin
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{
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GstPlayBaseBin parent;
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/* the configurable elements */
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GstElement *fakesink;
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GstElement *audio_sink;
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GstElement *video_sink;
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GstElement *visualisation;
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GstElement *volume_element;
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GstElement *textoverlay_element;
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gfloat volume;
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/* these are the currently active sinks */
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GList *sinks;
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/* the last captured frame for snapshots */
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GstBuffer *frame;
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/* our cache for the sinks */
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GHashTable *cache;
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/* font description */
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gchar *font_desc;
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};
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struct _GstPlayBinClass
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{
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GstPlayBaseBinClass parent_class;
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};
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/* props */
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enum
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{
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ARG_0,
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ARG_AUDIO_SINK,
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ARG_VIDEO_SINK,
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ARG_VIS_PLUGIN,
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ARG_VOLUME,
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ARG_FRAME,
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ARG_FONT_DESC
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};
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/* signals */
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enum
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{
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LAST_SIGNAL
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};
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static void gst_play_bin_class_init (GstPlayBinClass * klass);
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static void gst_play_bin_init (GstPlayBin * play_bin);
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static void gst_play_bin_dispose (GObject * object);
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static void setup_sinks (GstPlayBaseBin * play_base_bin,
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GstPlayBaseGroup * group);
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static void remove_sinks (GstPlayBin * play_bin);
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static void gst_play_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * spec);
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static void gst_play_bin_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * spec);
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static GstElementStateReturn gst_play_bin_change_state (GstElement * element);
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static GstElementClass *parent_class;
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//static guint gst_play_bin_signals[LAST_SIGNAL] = { 0 };
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static GstElementDetails gst_play_bin_details = {
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"Player Bin",
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"Generic/Bin/Player",
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"Autoplug and play media from an uri",
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"Wim Taymans <wim@fluendo.com>"
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};
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static GType
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gst_play_bin_get_type (void)
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{
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static GType gst_play_bin_type = 0;
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if (!gst_play_bin_type) {
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static const GTypeInfo gst_play_bin_info = {
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sizeof (GstPlayBinClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_play_bin_class_init,
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NULL,
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NULL,
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sizeof (GstPlayBin),
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0,
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(GInstanceInitFunc) gst_play_bin_init,
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NULL
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};
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gst_play_bin_type = g_type_register_static (GST_TYPE_PLAY_BASE_BIN,
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"GstPlayBin", &gst_play_bin_info, 0);
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}
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return gst_play_bin_type;
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}
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static void
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gst_play_bin_class_init (GstPlayBinClass * klass)
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{
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GObjectClass *gobject_klass;
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GstElementClass *gstelement_klass;
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GstBinClass *gstbin_klass;
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GstPlayBaseBinClass *playbasebin_klass;
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gobject_klass = (GObjectClass *) klass;
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gstelement_klass = (GstElementClass *) klass;
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gstbin_klass = (GstBinClass *) klass;
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playbasebin_klass = (GstPlayBaseBinClass *) klass;
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parent_class = g_type_class_ref (gst_play_base_bin_get_type ());
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gobject_klass->set_property = gst_play_bin_set_property;
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gobject_klass->get_property = gst_play_bin_get_property;
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g_object_class_install_property (gobject_klass, ARG_VIDEO_SINK,
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g_param_spec_object ("video-sink", "Video Sink",
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"the video output element to use (NULL = default sink)",
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GST_TYPE_ELEMENT, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, ARG_AUDIO_SINK,
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g_param_spec_object ("audio-sink", "Audio Sink",
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"the audio output element to use (NULL = default sink)",
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GST_TYPE_ELEMENT, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, ARG_VIS_PLUGIN,
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g_param_spec_object ("vis-plugin", "Vis plugin",
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"the visualization element to use (NULL = none)",
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GST_TYPE_ELEMENT, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, ARG_VOLUME,
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g_param_spec_double ("volume", "volume", "volume",
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0.0, VOLUME_MAX_DOUBLE, 1.0, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, ARG_FRAME,
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gst_param_spec_mini_object ("frame", "Frame",
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"The last frame (NULL = no video available)",
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GST_TYPE_BUFFER, G_PARAM_READABLE));
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g_object_class_install_property (gobject_klass, ARG_FONT_DESC,
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g_param_spec_string ("subtitle-font-desc",
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"Subtitle font description",
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"Pango font description of font "
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"to be used for subtitle rendering", NULL, G_PARAM_WRITABLE));
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gobject_klass->dispose = GST_DEBUG_FUNCPTR (gst_play_bin_dispose);
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gst_element_class_set_details (gstelement_klass, &gst_play_bin_details);
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gstelement_klass->change_state =
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GST_DEBUG_FUNCPTR (gst_play_bin_change_state);
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playbasebin_klass->setup_output_pads = setup_sinks;
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}
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static void
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gst_play_bin_init (GstPlayBin * play_bin)
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{
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play_bin->video_sink = NULL;
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play_bin->audio_sink = NULL;
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play_bin->visualisation = NULL;
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play_bin->volume_element = NULL;
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play_bin->textoverlay_element = NULL;
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play_bin->volume = 1.0;
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play_bin->sinks = NULL;
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play_bin->frame = NULL;
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play_bin->font_desc = NULL;
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play_bin->cache = g_hash_table_new_full (g_str_hash, g_str_equal,
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NULL, (GDestroyNotify) gst_object_unref);
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}
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static void
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gst_play_bin_dispose (GObject * object)
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{
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GstPlayBin *play_bin;
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play_bin = GST_PLAY_BIN (object);
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if (play_bin->cache != NULL) {
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remove_sinks (play_bin);
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g_hash_table_destroy (play_bin->cache);
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play_bin->cache = NULL;
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}
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if (play_bin->audio_sink != NULL) {
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gst_object_unref (GST_OBJECT (play_bin->audio_sink));
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play_bin->audio_sink = NULL;
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}
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if (play_bin->video_sink != NULL) {
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gst_object_unref (GST_OBJECT (play_bin->video_sink));
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play_bin->video_sink = NULL;
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}
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if (play_bin->visualisation != NULL) {
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gst_object_unref (GST_OBJECT (play_bin->visualisation));
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play_bin->visualisation = NULL;
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}
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g_free (play_bin->font_desc);
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play_bin->font_desc = NULL;
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if (G_OBJECT_CLASS (parent_class)->dispose) {
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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}
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static void
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gst_play_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstPlayBin *play_bin;
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g_return_if_fail (GST_IS_PLAY_BIN (object));
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play_bin = GST_PLAY_BIN (object);
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switch (prop_id) {
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case ARG_VIDEO_SINK:
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if (play_bin->video_sink != NULL) {
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gst_object_unref (GST_OBJECT (play_bin->video_sink));
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}
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play_bin->video_sink = g_value_get_object (value);
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if (play_bin->video_sink != NULL) {
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gst_object_ref (GST_OBJECT (play_bin->video_sink));
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gst_object_sink (GST_OBJECT (play_bin->video_sink));
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}
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/* when changing the videosink, we just remove the
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* video pipeline from the cache so that it will be
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* regenerated with the new sink element */
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g_hash_table_remove (play_bin->cache, "vbin");
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break;
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case ARG_AUDIO_SINK:
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if (play_bin->audio_sink != NULL) {
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gst_object_unref (GST_OBJECT (play_bin->audio_sink));
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}
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play_bin->audio_sink = g_value_get_object (value);
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if (play_bin->audio_sink != NULL) {
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gst_object_ref (GST_OBJECT (play_bin->audio_sink));
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gst_object_sink (GST_OBJECT (play_bin->audio_sink));
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}
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g_hash_table_remove (play_bin->cache, "abin");
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break;
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case ARG_VIS_PLUGIN:
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if (play_bin->visualisation != NULL) {
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gst_object_unref (GST_OBJECT (play_bin->visualisation));
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}
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play_bin->visualisation = g_value_get_object (value);
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if (play_bin->visualisation != NULL) {
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gst_object_ref (GST_OBJECT (play_bin->visualisation));
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gst_object_sink (GST_OBJECT (play_bin->visualisation));
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}
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break;
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case ARG_VOLUME:
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play_bin->volume = g_value_get_double (value);
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if (play_bin->volume_element) {
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g_object_set (G_OBJECT (play_bin->volume_element), "volume",
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play_bin->volume, NULL);
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}
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break;
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case ARG_FONT_DESC:
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g_free (play_bin->font_desc);
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play_bin->font_desc = g_strdup (g_value_get_string (value));
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if (play_bin->textoverlay_element) {
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g_object_set (G_OBJECT (play_bin->textoverlay_element),
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"font-desc", g_value_get_string (value), NULL);
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}
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstPlayBin *play_bin;
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g_return_if_fail (GST_IS_PLAY_BIN (object));
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play_bin = GST_PLAY_BIN (object);
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switch (prop_id) {
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case ARG_VIDEO_SINK:
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g_value_set_object (value, play_bin->video_sink);
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break;
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case ARG_AUDIO_SINK:
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g_value_set_object (value, play_bin->audio_sink);
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break;
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case ARG_VIS_PLUGIN:
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g_value_set_object (value, play_bin->visualisation);
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break;
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case ARG_VOLUME:
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g_value_set_double (value, play_bin->volume);
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break;
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case ARG_FRAME:
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g_value_set_boxed (value, play_bin->frame);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/* signal fired when the identity has received a new buffer. This is used for
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* making screenshots.
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*/
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static void
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handoff (GstElement * identity, GstBuffer * frame, gpointer data)
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{
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GstPlayBin *play_bin = GST_PLAY_BIN (data);
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if (play_bin->frame) {
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gst_buffer_unref (play_bin->frame);
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}
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play_bin->frame = gst_buffer_ref (frame);
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}
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/* make the element (bin) that contains the elements needed to perform
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* video display. We connect a handoff signal to identity so that we
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* can grab snapshots. Identity's sinkpad is ghosted to vbin.
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*
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* +-------------------------------------------------------------+
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* | vbin |
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* | +--------+ +----------+ +----------+ +---------+ |
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* | |identity| |colorspace| |videoscale| |videosink| |
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* | +-sink src-sink src-sink src-sink | |
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* | | +---+----+ +----------+ +----------+ +---------+ |
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* sink-+ | |
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* +----------|--------------------------------------------------+
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* handoff
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*/
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static GstElement *
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gen_video_element (GstPlayBin * play_bin)
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{
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GstElement *element;
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GstElement *conv;
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//GstElement *scale;
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GstElement *sink;
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GstElement *identity;
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GstPad *pad;
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/* first see if we have it in the cache */
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element = g_hash_table_lookup (play_bin->cache, "vbin");
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if (element != NULL) {
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return element;
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}
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element = gst_bin_new ("vbin");
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identity = gst_element_factory_make ("identity", "id");
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g_signal_connect (identity, "handoff", G_CALLBACK (handoff), play_bin);
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conv = gst_element_factory_make ("ffmpegcolorspace", "vconv");
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//scale = gst_element_factory_make ("videoscale", "vscale");
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if (play_bin->video_sink) {
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sink = play_bin->video_sink;
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} else {
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sink = gst_element_factory_make ("xvimagesink", "videosink");
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}
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gst_object_ref (GST_OBJECT (sink));
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g_hash_table_insert (play_bin->cache, "video_sink", sink);
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gst_bin_add (GST_BIN (element), identity);
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gst_bin_add (GST_BIN (element), conv);
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//gst_bin_add (GST_BIN (element), scale);
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gst_bin_add (GST_BIN (element), sink);
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gst_element_link_pads (identity, "src", conv, "sink");
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gst_element_link_pads (conv, "src", /*scale, "sink");
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gst_element_link_pads (scale, "src", */ sink, "sink");
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pad = gst_element_get_pad (identity, "sink");
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gst_element_add_ghost_pad (element, pad, "sink");
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g_object_unref (G_OBJECT (pad));
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gst_element_set_state (element, GST_STATE_READY);
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/* since we're gonna add it to a bin but don't want to lose it,
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* we keep a reference. */
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gst_object_ref (GST_OBJECT (element));
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g_hash_table_insert (play_bin->cache, "vbin", element);
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return element;
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}
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/* make an element for playback of video with subtitles embedded.
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*
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* +--------------------------------------------------+
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* | tbin +-------------+ |
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* | +-----+ | textoverlay | +------+ |
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* | | csp | +--video_sink | | vbin | |
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* video_sink-sink src+ +-text_sink src-sink | |
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* | +-----+ | +-------------+ +------+ |
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* text_sink-------------+ |
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* +--------------------------------------------------+
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*/
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static GstElement *
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gen_text_element (GstPlayBin * play_bin)
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{
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GstElement *element, *csp, *overlay, *vbin;
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GstPad *pad;
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overlay = gst_element_factory_make ("textoverlay", "overlay");
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g_object_set (G_OBJECT (overlay),
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"halign", "center", "valign", "bottom", NULL);
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play_bin->textoverlay_element = overlay;
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if (play_bin->font_desc) {
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g_object_set (G_OBJECT (play_bin->textoverlay_element),
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"font-desc", play_bin->font_desc, NULL);
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}
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vbin = gen_video_element (play_bin);
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if (!overlay) {
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g_warning ("No overlay (pango) element, subtitles disabled");
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return vbin;
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}
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csp = gst_element_factory_make ("ffmpegcolorspace", "subtitlecsp");
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element = gst_bin_new ("textbin");
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gst_element_link_many (csp, overlay, vbin, NULL);
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gst_bin_add_many (GST_BIN (element), csp, overlay, vbin, NULL);
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pad = gst_element_get_pad (overlay, "text_sink");
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gst_element_add_ghost_pad (element, pad, "text_sink");
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g_object_unref (G_OBJECT (pad));
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pad = gst_element_get_pad (csp, "sink");
|
|
gst_element_add_ghost_pad (element, pad, "sink");
|
|
g_object_unref (G_OBJECT (pad));
|
|
|
|
return element;
|
|
}
|
|
|
|
/* make the element (bin) that contains the elements needed to perform
|
|
* audio playback.
|
|
*
|
|
* +-------------------------------------------------------------+
|
|
* | abin |
|
|
* | +---------+ +----------+ +---------+ +---------+ |
|
|
* | |audioconv| |audioscale| | volume | |audiosink| |
|
|
* | +-sink src-sink src-sink src-sink | |
|
|
* | | +---------+ +----------+ +---------+ +---------+ |
|
|
* sink-+ |
|
|
* +-------------------------------------------------------------+
|
|
*
|
|
*/
|
|
static GstElement *
|
|
gen_audio_element (GstPlayBin * play_bin)
|
|
{
|
|
GstElement *element;
|
|
GstElement *conv;
|
|
GstElement *sink;
|
|
GstElement *volume;
|
|
GstElement *scale;
|
|
GstPad *pad;
|
|
|
|
element = g_hash_table_lookup (play_bin->cache, "abin");
|
|
if (element != NULL) {
|
|
return element;
|
|
}
|
|
element = gst_bin_new ("abin");
|
|
conv = gst_element_factory_make ("audioconvert", "aconv");
|
|
scale = gst_element_factory_make ("audioscale", "ascale");
|
|
|
|
volume = gst_element_factory_make ("volume", "volume");
|
|
g_object_set (G_OBJECT (volume), "volume", play_bin->volume, NULL);
|
|
play_bin->volume_element = volume;
|
|
|
|
if (play_bin->audio_sink) {
|
|
sink = play_bin->audio_sink;
|
|
} else {
|
|
sink = gst_element_factory_make ("alsasink", "audiosink");
|
|
play_bin->audio_sink = GST_ELEMENT (gst_object_ref (GST_OBJECT (sink)));
|
|
}
|
|
|
|
gst_object_ref (GST_OBJECT (sink));
|
|
g_hash_table_insert (play_bin->cache, "audio_sink", sink);
|
|
|
|
gst_bin_add (GST_BIN (element), conv);
|
|
//gst_bin_add (GST_BIN (element), scale);
|
|
//gst_bin_add (GST_BIN (element), volume);
|
|
gst_bin_add (GST_BIN (element), sink);
|
|
|
|
gst_element_link_pads (conv, "src", /*scale, "sink");
|
|
gst_element_link_pads (scale, "src", volume, "sink");
|
|
gst_element_link_pads (volume, "src", */ sink, "sink");
|
|
|
|
pad = gst_element_get_pad (conv, "sink");
|
|
gst_element_add_ghost_pad (element, pad, "sink");
|
|
g_object_unref (G_OBJECT (pad));
|
|
|
|
gst_element_set_state (element, GST_STATE_READY);
|
|
|
|
/* since we're gonna add it to a bin but don't want to lose it,
|
|
* we keep a reference. */
|
|
gst_object_ref (GST_OBJECT (element));
|
|
g_hash_table_insert (play_bin->cache, "abin", element);
|
|
|
|
return element;
|
|
}
|
|
|
|
/* make the element (bin) that contains the elements needed to perform
|
|
* visualisation ouput. The idea is to split the audio using tee, then
|
|
* sending the output to the regular audio bin and the other output to
|
|
* the vis plugin that transforms it into a video that is rendered with the
|
|
* normal video bin. The video bin is run in a thread to make sure it does
|
|
* not block the audio playback pipeline.
|
|
*
|
|
* +--------------------------------------------------------------------------+
|
|
* | visbin |
|
|
* | +------+ +----------------+ |
|
|
* | | tee | | abin ... | |
|
|
* | +-sink src-sink | |
|
|
* | | | | +----------------+ +-------------------+ |
|
|
* | | | | | vthread | |
|
|
* | | | | +---------+ +------+ +------+ | +--------------+ | |
|
|
* | | | | |audioconv| | vis | |vqueue| | | vbin ... | | |
|
|
* | | | src-sink src-sink src-sink src-sink | | |
|
|
* | | | | +---------+ +------+ +------+ | +--------------+ | |
|
|
* | | | | +-------------------+ |
|
|
* | | +------+ |
|
|
* sink-+ |
|
|
+--------------------------------------------------------------------------+
|
|
*/
|
|
static GstElement *
|
|
gen_vis_element (GstPlayBin * play_bin)
|
|
{
|
|
GstElement *element;
|
|
GstElement *tee;
|
|
GstElement *asink;
|
|
GstElement *vsink;
|
|
GstElement *conv;
|
|
GstElement *vis;
|
|
GstElement *vqueue, *aqueue;
|
|
GstPad *pad, *rpad;
|
|
|
|
element = gst_bin_new ("visbin");
|
|
tee = gst_element_factory_make ("tee", "tee");
|
|
|
|
vqueue = gst_element_factory_make ("queue", "vqueue");
|
|
aqueue = gst_element_factory_make ("queue", "aqueue");
|
|
|
|
asink = gen_audio_element (play_bin);
|
|
vsink = gen_video_element (play_bin);
|
|
|
|
gst_bin_add (GST_BIN (element), asink);
|
|
gst_bin_add (GST_BIN (element), vqueue);
|
|
gst_bin_add (GST_BIN (element), aqueue);
|
|
gst_bin_add (GST_BIN (element), vsink);
|
|
gst_bin_add (GST_BIN (element), tee);
|
|
|
|
conv = gst_element_factory_make ("audioconvert", "aconv");
|
|
if (play_bin->visualisation) {
|
|
gst_object_ref (GST_OBJECT (play_bin->visualisation));
|
|
vis = play_bin->visualisation;
|
|
} else {
|
|
vis = gst_element_factory_make ("goom", "vis");
|
|
}
|
|
|
|
gst_bin_add (GST_BIN (element), conv);
|
|
gst_bin_add (GST_BIN (element), vis);
|
|
|
|
gst_element_link_pads (conv, "src", vis, "sink");
|
|
gst_element_link_pads (vis, "src", vqueue, "sink");
|
|
|
|
gst_element_link_pads (vqueue, "src", vsink, "sink");
|
|
|
|
pad = gst_element_get_pad (aqueue, "sink");
|
|
rpad = gst_element_get_request_pad (tee, "src%d");
|
|
gst_pad_link (rpad, pad);
|
|
g_object_unref (G_OBJECT (rpad));
|
|
g_object_unref (G_OBJECT (pad));
|
|
gst_element_link_pads (aqueue, "src", asink, "sink");
|
|
|
|
pad = gst_element_get_pad (conv, "sink");
|
|
rpad = gst_element_get_request_pad (tee, "src%d");
|
|
gst_pad_link (rpad, pad);
|
|
g_object_unref (G_OBJECT (rpad));
|
|
g_object_unref (G_OBJECT (pad));
|
|
|
|
pad = gst_element_get_pad (tee, "sink");
|
|
gst_element_add_ghost_pad (element, pad, "sink");
|
|
g_object_unref (G_OBJECT (pad));
|
|
|
|
return element;
|
|
}
|
|
|
|
/* get rid of all installed sinks */
|
|
static void
|
|
remove_sinks (GstPlayBin * play_bin)
|
|
{
|
|
GList *sinks;
|
|
GstObject *parent;
|
|
GstElement *element;
|
|
|
|
GST_DEBUG ("removesinks");
|
|
element = g_hash_table_lookup (play_bin->cache, "abin");
|
|
if (element != NULL) {
|
|
parent = gst_element_get_parent (element);
|
|
if (parent != NULL) {
|
|
/* we remove the element from the parent so that
|
|
* there is no unwanted state change when the parent
|
|
* is disposed */
|
|
gst_bin_remove (GST_BIN (parent), element);
|
|
g_object_unref (G_OBJECT (parent));
|
|
}
|
|
}
|
|
element = g_hash_table_lookup (play_bin->cache, "vbin");
|
|
if (element != NULL) {
|
|
parent = gst_element_get_parent (element);
|
|
if (parent != NULL) {
|
|
gst_bin_remove (GST_BIN (parent), element);
|
|
g_object_unref (G_OBJECT (parent));
|
|
}
|
|
}
|
|
|
|
for (sinks = play_bin->sinks; sinks; sinks = g_list_next (sinks)) {
|
|
GstElement *element = GST_ELEMENT (sinks->data);
|
|
GstPad *pad = gst_element_get_pad (element, "sink");
|
|
|
|
GST_LOG ("removing sink %p", element);
|
|
if (GST_PAD_PEER (pad))
|
|
gst_pad_unlink (GST_PAD_PEER (pad), pad);
|
|
g_object_unref (G_OBJECT (pad));
|
|
gst_bin_remove (GST_BIN (play_bin), element);
|
|
}
|
|
g_list_free (play_bin->sinks);
|
|
play_bin->sinks = NULL;
|
|
|
|
if (play_bin->frame) {
|
|
gst_buffer_unref (play_bin->frame);
|
|
play_bin->frame = NULL;
|
|
}
|
|
|
|
play_bin->textoverlay_element = NULL;
|
|
}
|
|
|
|
/* loop over the streams and set up the pipeline to play this
|
|
* media file. First we count the number of audio and video streams.
|
|
* If there is no video stream but there exists an audio stream,
|
|
* we install a visualisation pipeline.
|
|
*
|
|
* Also make sure to only connect the first audio and video pad. FIXME
|
|
* this should eventually be handled with a tuner interface so that
|
|
* one can switch the streams.
|
|
*/
|
|
static gboolean
|
|
add_sink (GstPlayBin * play_bin, GstElement * sink, GstPad * srcpad)
|
|
{
|
|
GstPad *sinkpad;
|
|
GstPadLinkReturn res;
|
|
GstElement *parent;
|
|
|
|
/* we found a sink for this stream, now try to install it */
|
|
sinkpad = gst_element_get_pad (sink, "sink");
|
|
res = gst_pad_link (srcpad, sinkpad);
|
|
g_object_unref (G_OBJECT (sinkpad));
|
|
|
|
parent = gst_pad_get_parent (srcpad);
|
|
GST_DEBUG ("Adding sink with state %d (parent: %d, peer: %d)\n",
|
|
GST_STATE (sink), GST_STATE (play_bin), GST_STATE (parent));
|
|
g_object_unref (G_OBJECT (parent));
|
|
|
|
/* try to link the pad of the sink to the stream */
|
|
if (res < 0) {
|
|
gchar *capsstr;
|
|
|
|
/* could not link this stream */
|
|
capsstr = gst_caps_to_string (gst_pad_get_caps (srcpad));
|
|
g_warning ("could not link %s", capsstr);
|
|
g_free (capsstr);
|
|
} else {
|
|
/* we got the sink succesfully linked, now keep the sink
|
|
* in out internal list */
|
|
play_bin->sinks = g_list_prepend (play_bin->sinks, sink);
|
|
gst_element_set_state (sink,
|
|
(GST_STATE (play_bin) == GST_STATE_PLAYING) ?
|
|
GST_STATE_PLAYING : GST_STATE_PAUSED);
|
|
gst_bin_add (GST_BIN (play_bin), sink);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
setup_sinks (GstPlayBaseBin * play_base_bin, GstPlayBaseGroup * group)
|
|
{
|
|
GstPlayBin *play_bin = GST_PLAY_BIN (play_base_bin);
|
|
GList *streaminfo = NULL, *s;
|
|
gboolean need_vis = FALSE;
|
|
gboolean need_text = FALSE;
|
|
GstPad *textsrcpad = NULL, *textsinkpad = NULL, *pad;
|
|
GstElement *sink;
|
|
|
|
/* get rid of existing sinks */
|
|
if (play_bin->sinks) {
|
|
remove_sinks (play_bin);
|
|
}
|
|
GST_DEBUG ("setupsinks");
|
|
|
|
/* find out what to do */
|
|
if (group->type[GST_STREAM_TYPE_VIDEO - 1].npads > 0 &&
|
|
group->type[GST_STREAM_TYPE_TEXT - 1].npads > 0) {
|
|
need_text = TRUE;
|
|
} else if (group->type[GST_STREAM_TYPE_VIDEO - 1].npads == 0 &&
|
|
group->type[GST_STREAM_TYPE_AUDIO - 1].npads > 0 &&
|
|
play_bin->visualisation != NULL) {
|
|
need_vis = TRUE;
|
|
}
|
|
|
|
/* now actually connect everything */
|
|
g_object_get (G_OBJECT (play_base_bin), "stream-info", &streaminfo, NULL);
|
|
for (s = streaminfo; s; s = g_list_next (s)) {
|
|
GObject *obj = G_OBJECT (s->data);
|
|
gint type;
|
|
GstObject *object;
|
|
|
|
g_object_get (obj, "type", &type, NULL);
|
|
g_object_get (obj, "object", &object, NULL);
|
|
}
|
|
|
|
/* link audio */
|
|
if (group->type[GST_STREAM_TYPE_AUDIO - 1].npads > 0) {
|
|
if (need_vis) {
|
|
sink = gen_vis_element (play_bin);
|
|
} else {
|
|
sink = gen_audio_element (play_bin);
|
|
}
|
|
pad = gst_element_get_pad (group->type[GST_STREAM_TYPE_AUDIO - 1].preroll,
|
|
"src");
|
|
add_sink (play_bin, sink, pad);
|
|
g_object_unref (G_OBJECT (pad));
|
|
}
|
|
|
|
/* link video */
|
|
if (group->type[GST_STREAM_TYPE_VIDEO - 1].npads > 0) {
|
|
if (need_text) {
|
|
sink = gen_text_element (play_bin);
|
|
|
|
textsinkpad = gst_element_get_pad (sink, "text_sink");
|
|
textsrcpad =
|
|
gst_element_get_pad (group->type[GST_STREAM_TYPE_TEXT - 1].preroll,
|
|
"src");
|
|
gst_pad_link (textsrcpad, textsinkpad);
|
|
g_object_unref (G_OBJECT (textsinkpad));
|
|
g_object_unref (G_OBJECT (textsrcpad));
|
|
} else {
|
|
sink = gen_video_element (play_bin);
|
|
}
|
|
pad = gst_element_get_pad (group->type[GST_STREAM_TYPE_VIDEO - 1].preroll,
|
|
"src");
|
|
add_sink (play_bin, sink, pad);
|
|
g_object_unref (G_OBJECT (pad));
|
|
}
|
|
|
|
if (play_bin->fakesink) {
|
|
gst_bin_remove (GST_BIN (play_bin), play_bin->fakesink);
|
|
play_bin->fakesink = NULL;
|
|
}
|
|
}
|
|
|
|
static GstElementStateReturn
|
|
gst_play_bin_change_state (GstElement * element)
|
|
{
|
|
GstElementStateReturn ret;
|
|
GstPlayBin *play_bin;
|
|
int transition;
|
|
|
|
play_bin = GST_PLAY_BIN (element);
|
|
|
|
transition = GST_STATE_TRANSITION (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_READY_TO_PAUSED:
|
|
if (!play_bin->fakesink) {
|
|
play_bin->fakesink = gst_element_factory_make ("fakesink", "test");
|
|
gst_bin_add (GST_BIN (play_bin), play_bin->fakesink);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
|
if (ret == GST_STATE_FAILURE)
|
|
return ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_PLAYING_TO_PAUSED:
|
|
/* Set audio sink state to NULL to release the sound device,
|
|
* but only if we own it (else we might be in chain-transition). */
|
|
//if (play_bin->audio_sink != NULL &&
|
|
// GST_STATE (play_bin->audio_sink) == GST_STATE_PAUSED) {
|
|
// gst_element_set_state (play_bin->audio_sink, GST_STATE_NULL);
|
|
//}
|
|
break;
|
|
case GST_STATE_PAUSED_TO_READY:
|
|
/* Check for NULL because the state transition may be done by
|
|
* gst_bin_dispose which is called by gst_play_bin_dispose, and in that
|
|
* case, we don't want to run remove_sinks.
|
|
* FIXME: should the NULL test be done in remove_sinks? Should we just
|
|
* set the state to NULL in gst_play_bin_dispose?
|
|
*/
|
|
if (play_bin->cache != NULL) {
|
|
remove_sinks (play_bin);
|
|
}
|
|
if (play_bin->fakesink) {
|
|
gst_bin_remove (GST_BIN (play_bin), play_bin->fakesink);
|
|
play_bin->fakesink = NULL;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (gst_play_bin_debug, "playbin", 0, "play bin");
|
|
|
|
return gst_element_register (plugin, "playbin", GST_RANK_NONE,
|
|
GST_TYPE_PLAY_BIN);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"playbin",
|
|
"player bin", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)
|