[libav-stable] eamad: allocate a dummy reference frame when the real one is missing

Anton Khirnov git at libav.org
Fri Mar 8 08:15:14 CET 2013


Module: libav
Branch: master
Commit: 7b89cd20d844cbe763ca34e63e99d110043cf241

Author:    Anton Khirnov <anton at khirnov.net>
Committer: Anton Khirnov <anton at khirnov.net>
Date:      Wed Feb 13 21:04:42 2013 +0100

eamad: allocate a dummy reference frame when the real one is missing

CC:libav-stable at libav.org

---

 libavcodec/eamad.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/libavcodec/eamad.c b/libavcodec/eamad.c
index e666a45..d4c167b 100644
--- a/libavcodec/eamad.c
+++ b/libavcodec/eamad.c
@@ -261,6 +261,19 @@ static int decode_frame(AVCodecContext *avctx,
         return ret;
     }
 
+    if (inter && !s->last_frame.data[0]) {
+        av_log(avctx, AV_LOG_WARNING, "Missing reference frame.\n");
+        ret = ff_get_buffer(avctx, &s->last_frame, AV_GET_BUFFER_FLAG_REF);
+        if (ret < 0)
+            return ret;
+        memset(s->last_frame.data[0], 0, s->last_frame.height *
+               s->last_frame.linesize[0]);
+        memset(s->last_frame.data[1], 0x80, s->last_frame.height / 2 *
+               s->last_frame.linesize[1]);
+        memset(s->last_frame.data[2], 0x80, s->last_frame.height / 2 *
+               s->last_frame.linesize[2]);
+    }
+
     av_fast_padded_malloc(&s->bitstream_buf, &s->bitstream_buf_size,
                           buf_end - buf);
     if (!s->bitstream_buf)



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