Fixes avconv video stream copy of bethsoft video, which was skipping all
video frames unless the copyinkf option was used.
---
 libavformat/bethsoftvid.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/libavformat/bethsoftvid.c b/libavformat/bethsoftvid.c
index e755f83..b01f73a 100644
--- a/libavformat/bethsoftvid.c
+++ b/libavformat/bethsoftvid.c
@@ -172,6 +172,8 @@ static int read_frame(BVID_DemuxContext *vid, AVIOContext 
*pb, AVPacket *pkt,
     pkt->pos = position;
     pkt->stream_index = 0;  // use the video decoder, which was initialized as 
the first stream
     pkt->pts = vid->video_pts;
+    if (block_type == VIDEO_I_FRAME)
+        pkt->flags |= AV_PKT_FLAG_KEY;
 
     /* if there is a new palette available, add it to packet side data */
     if (vid->palette) {
@@ -230,6 +232,7 @@ static int vid_read_packet(AVFormatContext *s,
                 return AVERROR(EIO);
             }
             pkt->stream_index = 1;
+            pkt->flags |= AV_PKT_FLAG_KEY;
             return 0;
 
         case VIDEO_P_FRAME:
-- 
1.7.1

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