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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/* GStreamer
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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 "gstpnmdec.h"
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#include "gstpnmenc.h"
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#include "gstpnmutils.h"
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#include <gst/gstplugin.h>
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#include <gst/gstversion.h>
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#include <gst/gsttypefind.h>
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#include <string.h>
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static GstStaticCaps bitmap_caps = GST_STATIC_CAPS (MIME_BM);
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static GstStaticCaps graymap_caps = GST_STATIC_CAPS (MIME_GM);
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static GstStaticCaps pixmap_caps = GST_STATIC_CAPS (MIME_PM);
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#define BITMAP_CAPS (gst_static_caps_get (&bitmap_caps))
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#define GRAYMAP_CAPS (gst_static_caps_get (&graymap_caps))
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#define PIXMAP_CAPS (gst_static_caps_get (&pixmap_caps))
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static void
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gst_my_typefind_function (GstTypeFind * tf, gpointer d)
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{
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GstPnmInfoMngrResult r = GST_PNM_INFO_MNGR_RESULT_READING;
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GstPnmInfoMngr mngr = { 0, };
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guint i;
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guint8 *data = NULL;
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for (i = 0; r == GST_PNM_INFO_MNGR_RESULT_READING; i++) {
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data = gst_type_find_peek (tf, i, 1);
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if (!data)
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break;
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r = gst_pnm_info_mngr_scan (&mngr, data, 1);
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}
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switch (r) {
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case GST_PNM_INFO_MNGR_RESULT_READING:
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case GST_PNM_INFO_MNGR_RESULT_FAILED:
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return;
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case GST_PNM_INFO_MNGR_RESULT_FINISHED:
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switch (mngr.info.type) {
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case GST_PNM_TYPE_BITMAP:
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, BITMAP_CAPS);
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return;
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case GST_PNM_TYPE_GRAYMAP:
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, GRAYMAP_CAPS);
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return;
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case GST_PNM_TYPE_PIXMAP:
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, PIXMAP_CAPS);
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return;
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}
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}
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}
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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static gchar *exts[] = { "pnm", NULL };
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if (!gst_type_find_register (plugin, "", GST_RANK_PRIMARY,
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gst_my_typefind_function, exts, gst_caps_from_string (MIME_ALL),
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NULL, NULL))
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return FALSE;
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if (!gst_element_register (plugin, "pnmdec", GST_RANK_PRIMARY,
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GST_TYPE_PNMDEC))
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return FALSE;
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if (!gst_element_register (plugin, "pnmenc", GST_RANK_PRIMARY,
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GST_TYPE_PNMENC))
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return FALSE;
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return TRUE;
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "pnm",
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"PNM plugin", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME,
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GST_PACKAGE_ORIGIN)
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