2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 /*#define GST_DEBUG_ENABLED */
24 #include "gstavitypes.h"
28 /* elementfactory information */
29 static GstElementDetails gst_avi_types_details = {
32 "Converts avi types into gstreamer types",
34 "Wim Taymans <wim.taymans@tvd.be>",
38 /* AviTypes signals and args */
50 GST_PADTEMPLATE_FACTORY (sink_templ,
57 "format", GST_PROPS_LIST (
58 GST_PROPS_STRING ("strf_vids"),
59 GST_PROPS_STRING ("strf_auds"),
60 GST_PROPS_STRING ("strf_iavs")
65 GST_PADTEMPLATE_FACTORY (src_templ,
72 "format", GST_PROPS_LIST (
73 GST_PROPS_FOURCC (GST_MAKE_FOURCC ('Y','U','Y','2')),
74 GST_PROPS_FOURCC (GST_MAKE_FOURCC ('R','G','B',' '))
76 "width", GST_PROPS_INT_RANGE (16, 4096),
77 "height", GST_PROPS_INT_RANGE (16, 4096)
82 "format", GST_PROPS_STRING ("strf_vids")
87 "format", GST_PROPS_STRING ("int"),
88 "law", GST_PROPS_INT (0),
89 "endianness", GST_PROPS_INT (G_BYTE_ORDER),
90 "signed", GST_PROPS_LIST (
91 GST_PROPS_BOOLEAN (TRUE),
92 GST_PROPS_BOOLEAN (FALSE)
94 "width", GST_PROPS_LIST (
98 "depth", GST_PROPS_LIST (
102 "rate", GST_PROPS_INT_RANGE (11025, 44100),
103 "channels", GST_PROPS_INT_RANGE (1, 2)
122 static void gst_avi_types_class_init (GstAviTypesClass *klass);
123 static void gst_avi_types_init (GstAviTypes *avi_types);
125 static void gst_avi_types_chain (GstPad *pad, GstBuffer *buffer);
127 static void gst_avi_types_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
130 static GstElementClass *parent_class = NULL;
131 /*static guint gst_avi_types_signals[LAST_SIGNAL] = { 0 }; */
134 gst_avi_types_get_type(void)
136 static GType avi_types_type = 0;
138 if (!avi_types_type) {
139 static const GTypeInfo avi_types_info = {
140 sizeof(GstAviTypesClass),
143 (GClassInitFunc)gst_avi_types_class_init,
148 (GInstanceInitFunc)gst_avi_types_init,
150 avi_types_type = g_type_register_static(GST_TYPE_ELEMENT, "GstAviTypes", &avi_types_info, 0);
152 return avi_types_type;
156 gst_avi_types_class_init (GstAviTypesClass *klass)
158 GObjectClass *gobject_class;
159 GstElementClass *gstelement_class;
161 gobject_class = (GObjectClass*)klass;
162 gstelement_class = (GstElementClass*)klass;
164 parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
166 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TYPE_FOUND,
167 g_param_spec_boolean ("type_found","type_found","type_found",
168 FALSE, G_PARAM_READABLE));
170 gobject_class->get_property = gst_avi_types_get_property;
173 static GstPadConnectReturn
174 gst_avi_types_sinkconnect (GstPad *pad, GstCaps *caps)
176 GstAviTypes *avi_types;
178 GstCaps *newcaps = NULL;
180 avi_types = GST_AVI_TYPES (gst_pad_get_parent (pad));
182 format = gst_caps_get_string (caps, "format");
184 if (!strcmp (format, "strf_vids")) {
185 gulong video_format = gst_caps_get_fourcc_int (caps, "compression");
187 switch (video_format) {
188 case GST_MAKE_FOURCC ('M','J','P','G'):
189 newcaps = gst_caps_new ("avi_type_mjpg",
192 case GST_MAKE_FOURCC ('d','v','s','d'):
193 newcaps = gst_caps_new ("avi_type_dv",
196 "format", GST_PROPS_STRING ("NTSC"),
199 /* else we simply don't convert, and hope there is a native decoder
205 else if (!strcmp (format, "strf_auds")) {
206 gint16 audio_format = gst_caps_get_int (caps, "fmt");
207 gint blockalign = gst_caps_get_int (caps, "blockalign");
208 gint size = gst_caps_get_int (caps, "size");
209 gint channels = gst_caps_get_int (caps, "channels");
210 gint rate = gst_caps_get_int (caps, "rate");
211 gboolean sign = (size == 8 ? FALSE : TRUE);
213 GST_DEBUG (GST_CAT_PLUGIN_INFO, "avitypes: new caps with audio format:%04x\n", audio_format);
215 switch (audio_format) {
217 newcaps = gst_caps_new ("avi_type_pcm",
220 "format", GST_PROPS_STRING ("int"),
221 "law", GST_PROPS_INT (0),
222 "endianness", GST_PROPS_INT (G_BYTE_ORDER),
223 "signed", GST_PROPS_BOOLEAN (sign),
224 "width", GST_PROPS_INT ((blockalign*8)/channels),
225 "depth", GST_PROPS_INT (size),
226 "rate", GST_PROPS_INT (rate),
227 "channels", GST_PROPS_INT (channels),
233 newcaps = gst_caps_new ("avi_type_mp3",
240 else if (!strcmp (format, "strf_iavs")) {
241 newcaps = gst_caps_new ("avi_type_dv",
244 "format", GST_PROPS_STRING ("NTSC"),
249 gst_pad_try_set_caps (avi_types->srcpad, newcaps);
250 avi_types->type_found = TRUE;
251 return GST_PAD_CONNECT_OK;
253 return GST_PAD_CONNECT_REFUSED;
257 gst_avi_types_init (GstAviTypes *avi_types)
259 avi_types->sinkpad = gst_pad_new_from_template (
260 GST_PADTEMPLATE_GET (sink_templ), "sink");
261 gst_element_add_pad (GST_ELEMENT (avi_types), avi_types->sinkpad);
262 gst_pad_set_connect_function (avi_types->sinkpad, gst_avi_types_sinkconnect);
263 gst_pad_set_chain_function (avi_types->sinkpad, gst_avi_types_chain);
265 avi_types->srcpad = gst_pad_new_from_template (
266 GST_PADTEMPLATE_GET (src_templ), "src");
267 gst_element_add_pad (GST_ELEMENT (avi_types), avi_types->srcpad);
269 avi_types->type_found = FALSE;
273 gst_avi_types_chain (GstPad *pad, GstBuffer *buffer)
275 GstAviTypes *avi_types;
277 avi_types = GST_AVI_TYPES (gst_pad_get_parent (pad));
279 if (GST_PAD_IS_CONNECTED (avi_types->srcpad))
280 gst_pad_push (avi_types->srcpad, buffer);
282 gst_buffer_unref (buffer);
286 gst_avi_types_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
290 /* it's not null if we got it, but it might not be ours */
291 g_return_if_fail (GST_IS_AVI_TYPES (object));
293 src = GST_AVI_TYPES (object);
297 g_value_set_boolean (value, src->type_found);
305 plugin_init (GModule *module, GstPlugin *plugin)
307 GstElementFactory *factory;
309 /* create an elementfactory for the avi_types element */
310 factory = gst_elementfactory_new ("avitypes",GST_TYPE_AVI_TYPES,
311 &gst_avi_types_details);
312 g_return_val_if_fail (factory != NULL, FALSE);
314 /*gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_templ)); */
315 gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (sink_templ));
317 gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
322 GstPluginDesc plugin_desc = {