From: Michael Niedermayer <michael@niedermayer.cc>
Date: Tue, 8 Mar 2016 17:44:34 +0000 (+0100)
Subject: avutil/frame: Assert that width/height/channels is 0 for the destination of av_frame... 
X-Git-Tag: android-x86-7.1-r1~5024
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=13aae86a2b652360256f52ff292fb2fb0804cbc6;p=android-x86%2Fexternal-ffmpeg.git

avutil/frame: Assert that width/height/channels is 0 for the destination of av_frame*_ref()

This should detect caes where these functions are called in unclean destinations
---

diff --git a/libavutil/frame.c b/libavutil/frame.c
index 5607206a09..d5c7c9f32f 100644
--- a/libavutil/frame.c
+++ b/libavutil/frame.c
@@ -375,6 +375,9 @@ int av_frame_ref(AVFrame *dst, const AVFrame *src)
 {
     int i, ret = 0;
 
+    av_assert1(dst->width == 0 && dst->height == 0);
+    av_assert1(dst->channels == 0);
+
     dst->format         = src->format;
     dst->width          = src->width;
     dst->height         = src->height;
@@ -504,6 +507,9 @@ void av_frame_unref(AVFrame *frame)
 
 void av_frame_move_ref(AVFrame *dst, AVFrame *src)
 {
+    av_assert1(dst->width == 0 && dst->height == 0);
+    av_assert1(dst->channels == 0);
+
     *dst = *src;
     if (src->extended_data == src->data)
         dst->extended_data = dst->data;