From ee0c00d3b43dcf53bca1a0a89ffab2d6140c811f Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 25 Jun 2004 19:14:23 +0000
Subject: [PATCH] use libmpeg2 idct to decode xvid videos unless the user
forced some other idct
Originally committed as revision 3251 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/h263dec.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 4394432e3d4..31580e4dbf4 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -623,7 +623,11 @@ retry:
fprintf(f, "%d %d %f\n", buf_size, s->qscale, buf_size*(double)s->qscale);
}
#endif
-
+
+ if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & MM_MMX) && !(s->flags&CODEC_FLAG_BITEXACT)){
+ avctx->idct_algo= FF_IDCT_LIBMPEG2MMX;
+ avctx->width= 0; // force reinit
+ }
/* After H263 & mpeg4 header decode we have the height, width,*/
/* and other parameters. So then we could init the picture */
/* FIXME: By the way H263 decoder is evolving it should have */
--
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