Initial revision

Original commit message from CVS:
Initial revision

1 files changed, 367 insertions, 0 deletions

diff --git a/gst/avi/gstavidecoder.c b/gst/avi/gstavidecoder.c
new file mode 100644
index 00000000..e9210a75
--- /dev/null
+++ b/gst/avi/gstavidecoder.c
@@ -0,0 +1,367 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * 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.
+ */
+
+
+//#define GST_DEBUG_ENABLED
+#include <string.h>
+
+#include "gstavidecoder.h"
+
+
+
+/* elementfactory information */
+static GstElementDetails gst_avi_decoder_details = {
+  ".avi decoder",
+  "Decoder/Video",
+  "Decodes a .avi file into audio and video",
+  VERSION,
+  "Erik Walthinsen <omega@cse.ogi.edu>\n"
+  "Wim Taymans <wim.taymans@tvd.be>",
+  "(C) 1999",
+};
+
+static GstCaps* avi_typefind (GstBuffer *buf, gpointer private);
+
+/* typefactory for 'avi' */
+static GstTypeDefinition avidefinition = {
+  "avidecoder_video/avi",
+  "video/avi",
+  ".avi",
+  avi_typefind,
+};
+
+/* AviDecoder signals and args */
+enum {
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum {
+  ARG_0,
+  ARG_BITRATE,
+  ARG_MEDIA_TIME,
+  ARG_CURRENT_TIME,
+  /* FILL ME */
+};
+
+GST_PADTEMPLATE_FACTORY (sink_templ,
+  "sink",
+  GST_PAD_SINK,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "avidecoder_sink",
+     "video/avi",
+     NULL
+  )
+)
+
+GST_PADTEMPLATE_FACTORY (src_video_templ,
+  "video_src",
+  GST_PAD_SRC,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "wincodec_src",
+    "video/raw",
+      "format",         GST_PROPS_LIST (
+                          GST_PROPS_FOURCC (GST_MAKE_FOURCC ('Y','U','Y','2')),
+                          GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')),
+                          GST_PROPS_FOURCC (GST_MAKE_FOURCC ('R','G','B',' '))
+                        ),
+      "width",          GST_PROPS_INT_RANGE (16, 4096),
+      "height",         GST_PROPS_INT_RANGE (16, 4096)
+  )
+)
+
+GST_PADTEMPLATE_FACTORY (src_audio_templ,
+  "audio_src",
+  GST_PAD_SRC,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "src_audio",
+    "audio/raw",
+      "format",           GST_PROPS_STRING ("int"),
+      "law",              GST_PROPS_INT (0),
+      "endianness",       GST_PROPS_INT (G_BYTE_ORDER),
+      "signed",           GST_PROPS_LIST (
+      			    GST_PROPS_BOOLEAN (TRUE),
+      			    GST_PROPS_BOOLEAN (FALSE)
+			  ),
+      "width",            GST_PROPS_LIST (
+	                    GST_PROPS_INT (8),
+	                    GST_PROPS_INT (16)
+			  ),
+      "depth",            GST_PROPS_LIST (
+	                    GST_PROPS_INT (8),
+	                    GST_PROPS_INT (16)
+			  ),
+      "rate",             GST_PROPS_INT_RANGE (11025, 48000),
+      "channels",         GST_PROPS_INT_RANGE (1, 2)
+  )
+)
+
+static void 	gst_avi_decoder_class_init	(GstAviDecoderClass *klass);
+static void 	gst_avi_decoder_init		(GstAviDecoder *avi_decoder);
+
+static void     gst_avi_decoder_get_property    (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
+
+
+
+static GstElementClass *parent_class = NULL;
+//static guint gst_avi_decoder_signals[LAST_SIGNAL] = { 0 };
+
+GType
+gst_avi_decoder_get_type(void) 
+{
+  static GType avi_decoder_type = 0;
+
+  if (!avi_decoder_type) {
+    static const GTypeInfo avi_decoder_info = {
+      sizeof(GstAviDecoderClass),      
+      NULL,
+      NULL,
+      (GClassInitFunc)gst_avi_decoder_class_init,
+      NULL,
+      NULL,
+      sizeof(GstAviDecoder),
+      0,
+      (GInstanceInitFunc)gst_avi_decoder_init,
+    };
+    avi_decoder_type = g_type_register_static(GST_TYPE_BIN, "GstAviDecoder", &avi_decoder_info, 0);
+  }
+  return avi_decoder_type;
+}
+
+static void
+gst_avi_decoder_class_init (GstAviDecoderClass *klass) 
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+
+  gobject_class = (GObjectClass*)klass;
+  gstelement_class = (GstElementClass*)klass;
+
+  g_object_class_install_property (G_OBJECT_CLASS(klass), ARG_BITRATE,
+    g_param_spec_long ("bitrate","bitrate","bitrate",
+                     G_MINLONG, G_MAXLONG, 0, G_PARAM_READABLE)); // CHECKME
+  g_object_class_install_property (G_OBJECT_CLASS(klass), ARG_MEDIA_TIME,
+    g_param_spec_long ("media_time","media_time","media_time",
+                     G_MINLONG, G_MAXLONG, 0, G_PARAM_READABLE)); // CHECKME
+  g_object_class_install_property (G_OBJECT_CLASS(klass), ARG_CURRENT_TIME,
+    g_param_spec_long ("current_time","current_time","current_time",
+                     G_MINLONG, G_MAXLONG, 0, G_PARAM_READABLE)); // CHECKME
+
+  parent_class = g_type_class_ref (GST_TYPE_BIN);
+  
+  gobject_class->get_property = gst_avi_decoder_get_property;
+}
+
+static void 
+gst_avi_decoder_new_pad (GstElement *element, GstPad *pad, GstAviDecoder *avi_decoder) 
+{
+  GstCaps *caps;
+  GstCaps *targetcaps = NULL;
+  const gchar *format;
+  gboolean type_found;
+  GstElement *type;
+  GstElement *new_element = NULL;
+  gchar *padname = NULL;
+  gchar *gpadname = NULL;
+#define AVI_TYPE_VIDEO  1
+#define AVI_TYPE_AUDIO  2
+  gint media_type = 0;
+  
+  GST_DEBUG (0, "avidecoder: new pad for element \"%s\"\n", gst_element_get_name (element));
+
+  caps = gst_pad_get_caps (pad);
+  format = gst_caps_get_string (caps, "format");
+
+  if (!strcmp (format, "strf_vids")) { 
+    targetcaps = gst_padtemplate_get_caps (GST_PADTEMPLATE_GET (src_video_templ));
+    media_type = AVI_TYPE_VIDEO;
+    gpadname = g_strdup_printf ("video_%02d", avi_decoder->count);
+  }
+  else if (!strcmp (format, "strf_auds")) {
+    targetcaps = gst_padtemplate_get_caps (GST_PADTEMPLATE_GET (src_audio_templ));
+    media_type = AVI_TYPE_AUDIO;
+    gpadname = g_strdup_printf ("audio_%02d", avi_decoder->count);
+  }
+  else if (!strcmp (format, "strf_iavs")) {
+    targetcaps = gst_padtemplate_get_caps (GST_PADTEMPLATE_GET (src_video_templ));
+    media_type = AVI_TYPE_VIDEO;
+    gpadname = g_strdup_printf ("video_%02d", avi_decoder->count);
+  }
+  else {
+    g_assert_not_reached ();
+  }
+
+  gst_element_set_state (GST_ELEMENT (avi_decoder), GST_STATE_PAUSED);
+
+  type = gst_elementfactory_make ("avitypes", 
+		  g_strdup_printf ("typeconvert%d", avi_decoder->count));
+
+  gst_pad_connect (pad, gst_element_get_pad (type, "sink"));
+  type_found = gst_util_get_bool_arg (G_OBJECT (type), "type_found");
+
+  if (type_found) {
+
+    gst_bin_add (GST_BIN (avi_decoder), type);
+    
+    pad = gst_element_get_pad (type, "src");
+    caps = gst_pad_get_caps (pad);
+
+    if (gst_caps_check_compatibility (caps, targetcaps)) {
+      gst_element_add_ghost_pad (GST_ELEMENT (avi_decoder), 
+	    gst_element_get_pad (type, "src"), gpadname);
+
+      avi_decoder->count++;
+      goto done;
+    }
+#ifndef GST_DISABLE_AUTOPLUG
+    else {
+      GstAutoplug *autoplug;
+      autoplug = gst_autoplugfactory_make("static");
+
+      new_element = gst_autoplug_to_caps (autoplug, caps, targetcaps, NULL);
+
+      padname = "src_00";
+    }
+#endif // GST_DISABLE_AUTOPLUG
+  }
+
+  if (!new_element && (media_type == AVI_TYPE_VIDEO)) {
+    gst_pad_disconnect (pad, gst_element_get_pad (type, "sink"));
+
+    new_element = gst_elementfactory_make ("windec", "decoder");
+
+    padname = "src";
+  }
+  else if (!new_element && (media_type == AVI_TYPE_AUDIO)) {
+    //FIXME
+    padname = "src";
+  }
+
+  if (new_element) {
+    gst_pad_connect (pad, gst_element_get_pad (new_element, "sink"));
+    gst_element_set_name (new_element, g_strdup_printf ("element%d", avi_decoder->count));
+    gst_bin_add (GST_BIN (avi_decoder), new_element);
+
+    gst_element_add_ghost_pad (GST_ELEMENT (avi_decoder), 
+	    gst_element_get_pad (new_element, padname), gpadname);
+
+    avi_decoder->count++;
+  }
+  else {
+    g_warning ("avidecoder: could not autoplug\n");
+  }
+
+done: 
+  gst_element_set_state (GST_ELEMENT (avi_decoder), GST_STATE_PLAYING);
+}
+
+static void 
+gst_avi_decoder_init (GstAviDecoder *avi_decoder) 
+{
+  avi_decoder->demuxer = gst_elementfactory_make ("avidemux", "demux");
+
+  if (avi_decoder->demuxer) {
+    gst_bin_add (GST_BIN (avi_decoder), avi_decoder->demuxer);
+
+    gst_element_add_ghost_pad (GST_ELEMENT (avi_decoder), 
+		    gst_element_get_pad (avi_decoder->demuxer, "sink"), "sink");
+
+    g_signal_connect (G_OBJECT (avi_decoder->demuxer),"new_pad", G_CALLBACK (gst_avi_decoder_new_pad),
+		    avi_decoder);
+  }
+  else {
+    g_warning ("wow!, no avi demuxer found. help me\n");
+  }
+
+  avi_decoder->count = 0;
+}
+
+static GstCaps*
+avi_typefind (GstBuffer *buf,
+              gpointer private)
+{
+  gchar *data = GST_BUFFER_DATA (buf);
+  GstCaps *new;
+
+  GST_DEBUG (0,"avi_decoder: typefind\n");
+  if (strncmp (&data[0], "RIFF", 4)) return NULL;
+  if (strncmp (&data[8], "AVI ", 4)) return NULL;
+
+  new = gst_caps_new ("avi_typefind","video/avi", NULL);
+
+  return new;
+}
+
+static void
+gst_avi_decoder_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  GstAviDecoder *src;
+
+  g_return_if_fail (GST_IS_AVI_DECODER (object));
+
+  src = GST_AVI_DECODER (object);
+
+  switch(prop_id) {
+    case ARG_BITRATE:
+      break;
+    case ARG_MEDIA_TIME:
+      g_value_set_long (value, gst_util_get_long_arg (G_OBJECT (src->demuxer), "media_time"));
+      break;
+    case ARG_CURRENT_TIME:
+      g_value_set_long (value, gst_util_get_long_arg (G_OBJECT (src->demuxer), "current_time"));
+      break;
+    default:
+      break;
+  }
+}
+
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *factory;
+  GstTypeFactory *type;
+
+  /* create an elementfactory for the avi_decoder element */
+  factory = gst_elementfactory_new ("avidecoder", GST_TYPE_AVI_DECODER,
+                                    &gst_avi_decoder_details);
+  g_return_val_if_fail (factory != NULL, FALSE);
+
+  gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_audio_templ));
+  gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_video_templ));
+  gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (sink_templ));
+
+  type = gst_typefactory_new (&avidefinition);
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type));
+
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "avidecoder",
+  plugin_init
+};
+