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author | Andy Wingo <wingo@pobox.com> | 2001-12-22 23:26:33 +0000 |
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committer | Andy Wingo <wingo@pobox.com> | 2001-12-22 23:26:33 +0000 |
commit | ad6ed7da2d0d15eecc924dfe408320652481e885 (patch) | |
tree | 5adb0cfc1d7b419d6b4246f616400dca7678bac0 /gst/mpegaudioparse/gstmp3types.c | |
parent | e5d9d6e2a512540848f5d38e01b9678a1ef5c761 (diff) | |
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Initial revision
Original commit message from CVS:
Initial revision
Diffstat (limited to 'gst/mpegaudioparse/gstmp3types.c')
-rw-r--r-- | gst/mpegaudioparse/gstmp3types.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/gst/mpegaudioparse/gstmp3types.c b/gst/mpegaudioparse/gstmp3types.c new file mode 100644 index 00000000..efb9fd5b --- /dev/null +++ b/gst/mpegaudioparse/gstmp3types.c @@ -0,0 +1,77 @@ +/* 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 DEBUG_ENABLED +#include <gst/gst.h> + +static GstCaps* mp3_typefind(GstBuffer *buf, gpointer private); + +static GstTypeDefinition mp3type_definitions[] = { + { "mp3types_audio/mp3", "audio/mp3", ".mp3 .mp2 .mp1 .mpga", mp3_typefind }, + { NULL, NULL, NULL, NULL }, +}; + +static GstCaps* +mp3_typefind(GstBuffer *buf, gpointer private) +{ + gulong head = GULONG_FROM_BE(*((gulong *)GST_BUFFER_DATA(buf))); + GstCaps *caps; + + GST_DEBUG (0,"mp3typefind: typefind\n"); + if ((head & 0xffe00000) != 0xffe00000) + return NULL; + if (!((head >> 17) & 3)) + return NULL; + if (((head >> 12) & 0xf) == 0xf) + return NULL; + if (!((head >> 12) & 0xf)) + return NULL; + if (((head >> 10) & 0x3) == 0x3) + return NULL; + + caps = gst_caps_new ("mp3_typefind", "audio/mp3", NULL); +// gst_caps_set(caps,"layer",GST_PROPS_INT(4-((head>>17)&0x3))); + + return caps; +} + +static gboolean +plugin_init (GModule *module, GstPlugin *plugin) +{ + gint i=0; + + while (mp3type_definitions[i].name) { + GstTypeFactory *type; + + type = gst_typefactory_new (&mp3type_definitions[i]); + gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type)); + i++; + } + +// gst_info("gsttypes: loaded %d mp3 types\n",i); + + return TRUE; +} + +GstPluginDesc plugin_desc = { + GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "mp3types", + plugin_init +}; |