patched ffmpeg nov 2

source/patched-ffmpeg-mt/cmdutils.h

 /*
  * Various utilities for command line tools
  * copyright (c) 2003 Fabrice Bellard
  *
  * 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 243 matching lines @@
  * which might have incorrect times. Input timestamps may wrap around, in
  * which case the output will as well.
  *
  * @param pts the pts field of the decoded AVPacket, as passed through
  * AVCodecContext.reordered_opaque
  * @param dts the dts field of the decoded AVPacket
  * @return one of the input values, may be AV_NOPTS_VALUE
  */
 int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t pts, int64_t dts);
 
+#if CONFIG_AVFILTER
+#include "libavfilter/avfilter.h"
+
+typedef struct {
+    enum PixelFormat pix_fmt;
+} FFSinkContext;
+
+extern AVFilter ffsink;
+
+/**
+ * Extract a frame from sink.
+ *
+ * @return a negative error in case of failure, 1 if one frame has
+ * been extracted successfully.
+ */
+int get_filtered_video_frame(AVFilterContext *sink, AVFrame *frame,
+                             AVFilterBufferRef **picref, AVRational *pts_tb);
+
+#endif /* CONFIG_AVFILTER */
+
 #endif /* FFMPEG_CMDUTILS_H */