/* GStreamer * 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", "RIFF", GST_PROPS_STRING ("AVI") ) ) 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\"", 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->video_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->audio_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->video_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)); /* brin the element to the READY state so it can do our caps negotiation */ gst_element_set_state (type, GST_STATE_READY); 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_is_always_compatible (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)) { 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; avi_decoder->audio_count = 0; avi_decoder->video_count = 0; } static GstCaps * avi_typefind (GstBuffer * buf, gpointer private) { gchar *data = GST_BUFFER_DATA (buf); GstCaps *new; GST_DEBUG (0, "avi_decoder: typefind"); if (strncmp (&data[0], "RIFF", 4)) return NULL; if (strncmp (&data[8], "AVI ", 4)) return NULL; new = GST_CAPS_NEW ("avi_typefind", "video/avi", "RIFF", GST_PROPS_STRING ("AVI")); 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 };