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