From 514d8a7c9dfde2acc89ee4d19dd9db6b9db5b882 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Sat, 9 Mar 2013 20:50:06 +0100
Subject: video: make use of libavcodec refcounting

Now lavc_dr1.c is not used anymore if libavcodec is recent enough.
---
 video/mp_image.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'video/mp_image.c')

diff --git a/video/mp_image.c b/video/mp_image.c
index 57124eab11..72da838822 100644
--- a/video/mp_image.c
+++ b/video/mp_image.c
@@ -459,3 +459,31 @@ void mp_image_copy_fields_from_av_frame(struct mp_image *dst,
     if (src->repeat_pict == 1)
         dst->fields |= MP_IMGFIELD_REPEAT_FIRST;
 }
+
+#if HAVE_AVUTIL_REFCOUNTING
+
+static void frame_free(void *p)
+{
+    AVFrame *frame = p;
+    av_frame_free(&frame);
+}
+
+static bool frame_is_unique(void *p)
+{
+    AVFrame *frame = p;
+    return av_frame_is_writable(frame);
+}
+
+// Create a new mp_image reference to av_frame.
+struct mp_image *mp_image_from_av_frame(struct AVFrame *av_frame)
+{
+    AVFrame *new_ref = av_frame_clone(av_frame);
+    if (!new_ref)
+        abort(); // OOM
+    struct mp_image t = {0};
+    mp_image_copy_fields_from_av_frame(&t, new_ref);
+    return mp_image_new_external_ref(&t, new_ref, NULL, NULL, frame_is_unique,
+                                     frame_free);
+}
+
+#endif /* HAVE_AVUTIL_REFCOUNTING */
-- 
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