ffmpeg source update for sep 09

source/patched-ffmpeg-mt/libavformat/rtpdec_asf.c

 /*
  * Microsoft RTP/ASF support.
  * Copyright (c) 2008 Ronald S. Bultje
  *
  * 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.
@@ skipping 212 matching lines @@
                  * the next ASF packet that can be read from this payload
                  * data alone. This is commonly the same as the payload size,
                  * but could be less in case of packet splitting (i.e.
                  * multiple ASF packets in one RTP packet).
                  */
 
                 int cur_len = start_off + len_off - off;
                 int prev_len = out_len;
                 out_len += cur_len;
                 asf->buf = av_realloc(asf->buf, out_len);
-                memcpy(asf->buf + prev_len, buf + off, cur_len);
+                memcpy(asf->buf + prev_len, buf + off,
+                       FFMIN(cur_len, len - off));
                 url_fskip(pb, cur_len);
             }
         }
 
         init_packetizer(pb, asf->buf, out_len);
         pb->pos += rt->asf_pb_pos;
         pb->eof_reached = 0;
         rt->asf_ctx->pb = pb;
     }
 
@@ skipping 39 matching lines @@
     .codec_type       = t, \
     .codec_id         = CODEC_ID_NONE, \
     .parse_sdp_a_line = asfrtp_parse_sdp_line, \
     .open             = asfrtp_new_context, \
     .close            = asfrtp_free_context, \
     .parse_packet     = asfrtp_parse_packet,   \
 };
 
 RTP_ASF_HANDLER(asf_pfv, "x-asf-pf",  AVMEDIA_TYPE_VIDEO);
 RTP_ASF_HANDLER(asf_pfa, "x-asf-pf",  AVMEDIA_TYPE_AUDIO);