Remove pthreads patch, roll in new patches, disable unchecked bit readers.

libavcodec/mpeg12.c

 /*
  * MPEG-1/2 decoder
  * Copyright (c) 2000, 2001 Fabrice Bellard
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
  * @file
  * MPEG-1/2 decoder
  */
 
-#define UNCHECKED_BITSTREAM_READER 1
-
 //#define DEBUG
 #include "internal.h"
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
 #include "libavutil/avassert.h"
 #include "libavutil/timecode.h"
 
 #include "mpeg12.h"
 #include "mpeg12data.h"
@@ skipping 2618 matching lines @@
     .id             = CODEC_ID_MPEG1VIDEO,
     .priv_data_size = sizeof(Mpeg1Context),
     .init           = mpeg_decode_init,
     .close          = mpeg_decode_end,
     .decode         = mpeg_decode_frame,
     .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_HWACCEL_VDPAU | CODEC_CAP_DELAY,
     .flush          = flush,
     .long_name      = NULL_IF_CONFIG_SMALL("MPEG-1 video (VDPAU acceleration)"),
 };
 #endif