From a6f2c0d6e5ccedf2f25c1ea9d83fc646e644ef52 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Tue, 2 Dec 2008 10:43:08 +0000
Subject: [PATCH] Fix regression test failure with pthreads on multiprocessor
 systems. Fixes issue517

Originally committed as revision 15976 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/motion_est.c | 2 --
 libavcodec/mpegvideo.c  | 3 +++
 libavcodec/snow.c       | 2 ++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index 7c1fc677d2..d9d48a643e 100644
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -307,8 +307,6 @@ int ff_init_me(MpegEncContext *s){
         c->sub_motion_search= no_sub_motion_search;
     }
 
-    c->temp= c->scratchpad;
-
     return 0;
 }
 
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 4bc32a2316..ddc4d091aa 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -289,6 +289,7 @@ static int init_duplicate_context(MpegEncContext *s, MpegEncContext *base){
 
      //FIXME should be linesize instead of s->width*2 but that is not known before get_buffer()
     CHECKED_ALLOCZ(s->me.scratchpad,  (s->width+64)*4*16*2*sizeof(uint8_t))
+    s->me.temp=         s->me.scratchpad;
     s->rd_scratchpad=   s->me.scratchpad;
     s->b_scratchpad=    s->me.scratchpad;
     s->obmc_scratchpad= s->me.scratchpad + 16;
@@ -315,6 +316,7 @@ static void free_duplicate_context(MpegEncContext *s){
 
     av_freep(&s->allocated_edge_emu_buffer); s->edge_emu_buffer= NULL;
     av_freep(&s->me.scratchpad);
+    s->me.temp=
     s->rd_scratchpad=
     s->b_scratchpad=
     s->obmc_scratchpad= NULL;
@@ -331,6 +333,7 @@ static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src){
     COPY(allocated_edge_emu_buffer);
     COPY(edge_emu_buffer);
     COPY(me.scratchpad);
+    COPY(me.temp);
     COPY(rd_scratchpad);
     COPY(b_scratchpad);
     COPY(obmc_scratchpad);
diff --git a/libavcodec/snow.c b/libavcodec/snow.c
index f73ac70f32..a393811cd9 100644
--- a/libavcodec/snow.c
+++ b/libavcodec/snow.c
@@ -4007,6 +4007,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
     s->m.flags   = avctx->flags;
     s->m.bit_rate= avctx->bit_rate;
 
+    s->m.me.temp      =
     s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t));
     s->m.me.map       = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
     s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
@@ -4435,6 +4436,7 @@ static av_cold void common_end(SnowContext *s){
     av_freep(&s->spatial_dwt_buffer);
     av_freep(&s->spatial_idwt_buffer);
 
+    s->m.me.temp= NULL;
     av_freep(&s->m.me.scratchpad);
     av_freep(&s->m.me.map);
     av_freep(&s->m.me.score_map);