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60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* Gstreamer
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* Copyright (C) <2011> Intel Corporation
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* Copyright (C) <2011> Collabora Ltd.
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* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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 "parserutils.h"
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gboolean
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decode_vlc (GstBitReader * br, guint * res, const VLCTable * table,
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guint length)
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{
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guint8 i;
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guint cbits = 0;
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guint32 value = 0;
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for (i = 0; i < length; i++) {
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if (cbits != table[i].cbits) {
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cbits = table[i].cbits;
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if (!gst_bit_reader_peek_bits_uint32 (br, &value, cbits)) {
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goto failed;
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}
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}
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if (value == table[i].cword) {
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SKIP (br, cbits);
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if (res)
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*res = table[i].value;
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return TRUE;
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}
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}
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GST_DEBUG ("Did not find code");
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failed:
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{
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GST_WARNING ("Could not decode VLC returning");
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return FALSE;
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}
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}
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