From 3c4f1840e6cbc9e3f67f24cadfa92a1f54e8cf57 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 5 Apr 2002 04:23:01 +0000
Subject: [PATCH] b frames & slices bugfix
Originally committed as revision 377 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/h263dec.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 02f59551f4c..50440d18a8e 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -220,9 +220,15 @@ static int h263_decode_frame(AVCodecContext *avctx,
if (h > 16)
h = 16;
offset = y * s->linesize;
- src_ptr[0] = s->current_picture[0] + offset;
- src_ptr[1] = s->current_picture[1] + (offset >> 2);
- src_ptr[2] = s->current_picture[2] + (offset >> 2);
+ if(s->pict_type==B_TYPE || (!s->has_b_frames)){
+ src_ptr[0] = s->current_picture[0] + offset;
+ src_ptr[1] = s->current_picture[1] + (offset >> 2);
+ src_ptr[2] = s->current_picture[2] + (offset >> 2);
+ } else {
+ src_ptr[0] = s->last_picture[0] + offset;
+ src_ptr[1] = s->last_picture[1] + (offset >> 2);
+ src_ptr[2] = s->last_picture[2] + (offset >> 2);
+ }
avctx->draw_horiz_band(avctx, src_ptr, s->linesize,
y, s->width, h);
}
--
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