ffmpeg source update for sep 09

source/patched-ffmpeg-mt/libavcodec/mpegvideo_enc.c

 /*
  * The simplest mpeg encoder (well, it was the simplest!)
  * Copyright (c) 2000,2001 Fabrice Bellard
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
  * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
@@ skipping 334 matching lines @@
 
     if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
         av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
         return -1;
     }
 
     if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
         av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
     }
 
-    if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
+    if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){
         av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
         return -1;
     }
 
     if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
         av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
         return -1;
     }
 
     if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
@@ skipping 3469 matching lines @@
     "wmv1",
     AVMEDIA_TYPE_VIDEO,
     CODEC_ID_WMV1,
     sizeof(MpegEncContext),
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
 };