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44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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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#include <riff.h>
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gulong gst_riff_fourcc_to_id(gchar *fourcc) {
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g_return_val_if_fail(fourcc != NULL, 0);
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return GUINT32_FROM_LE((gulong)(fourcc[0] << 0) | (fourcc[1] << 8) |
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(fourcc[2] << 16) | (fourcc[3] << 24));
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}
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gchar *gst_riff_id_to_fourcc(gulong id) {
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static gchar fourcc[5];
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g_return_val_if_fail(fourcc != NULL, NULL);
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id = GUINT32_FROM_LE(id);
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fourcc[0] = (id >> 0) & 0xff;
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fourcc[1] = (id >> 8) & 0xff;
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fourcc[2] = (id >> 16) & 0xff;
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fourcc[3] = (id >> 24) & 0xff;
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fourcc[4] = 0;
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return fourcc;
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}
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