ffmpeg roll of source to mar 9 version...

patched-ffmpeg-mt/libavformat/idcin.c

 /*
  * id Quake II CIN File Demuxer
  * Copyright (c) 2003 The ffmpeg Project
  *
  * 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 242 matching lines @@
                 b = palette_buffer[i * 3 + 2] << palette_scale;
                 idcin->palctrl.palette[i] = (r << 16) | (g << 8) | (b);
             }
         }
 
         chunk_size = get_le32(pb);
         /* skip the number of decoded bytes (always equal to width * height) */
         url_fseek(pb, 4, SEEK_CUR);
         chunk_size -= 4;
         ret= av_get_packet(pb, pkt, chunk_size);
-        if (ret != chunk_size)
-            return AVERROR(EIO);
+        if (ret < 0)
+            return ret;
         pkt->stream_index = idcin->video_stream_index;
         pkt->pts = idcin->pts;
     } else {
         /* send out the audio chunk */
         if (idcin->current_audio_chunk)
             chunk_size = idcin->audio_chunk_size2;
         else
             chunk_size = idcin->audio_chunk_size1;
         ret= av_get_packet(pb, pkt, chunk_size);
-        if (ret != chunk_size)
-            return AVERROR(EIO);
+        if (ret < 0)
+            return ret;
         pkt->stream_index = idcin->audio_stream_index;
         pkt->pts = idcin->pts;
 
         idcin->current_audio_chunk ^= 1;
         idcin->pts++;
     }
 
     if (idcin->audio_present)
         idcin->next_chunk_is_video ^= 1;
 
     return ret;
 }
 
 AVInputFormat idcin_demuxer = {
     "idcin",
     NULL_IF_CONFIG_SMALL("id Cinematic format"),
     sizeof(IdcinDemuxContext),
     idcin_probe,
     idcin_read_header,
     idcin_read_packet,
 };