Merge commit '985f34b75653d02eda8eb8def3412f8577f19b01'

* commit '985f34b75653d02eda8eb8def3412f8577f19b01':
  utils: fix avcodec_flush_buffers pre-reference counting compatibility

Conflicts:
	libavcodec/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

diff --cc libavcodec/utils.c
index d2fa73f,3dddafc..97d066f
--- 1/libavcodec/utils.c
--- 2/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@@ -2664,8 -1805,8 +2664,11 @@@ void avcodec_flush_buffers(AVCodecConte
      else if (avctx->codec->flush)
          avctx->codec->flush(avctx);
  
 +    avctx->pts_correction_last_pts =
 +    avctx->pts_correction_last_dts = INT64_MIN;
++
+     if (!avctx->refcounted_frames)
+         av_frame_unref(&avctx->internal->to_free);
  }
  
  int av_get_exact_bits_per_sample(enum AVCodecID codec_id)