[FFmpeg-cvslog] r21404 - trunk/libavcodec/mdec.c

[reimar]

Author: reimar
Date: Sat Jan 23 19:01:38 2010
New Revision: 21404

Log:
Use qstride = 0 and allocate only a single line for qscale_table since
for this codecs all quants are the same for a single frame.

Modified:
   trunk/libavcodec/mdec.c

Modified: trunk/libavcodec/mdec.c
==============================================================================
--- trunk/libavcodec/mdec.c	Sat Jan 23 19:01:28 2010	(r21403)
+++ trunk/libavcodec/mdec.c	Sat Jan 23 19:01:38 2010	(r21404)
@@ -201,7 +201,7 @@ static int decode_frame(AVCodecContext *
     }
 
     p->quality= a->qscale * FF_QP2LAMBDA;
-    memset(p->qscale_table, a->qscale, p->qstride*a->mb_height);
+    memset(p->qscale_table, a->qscale, a->mb_width);
 
     *picture   = a->picture;
     *data_size = sizeof(AVPicture);
@@ -229,8 +229,8 @@ static av_cold int decode_init(AVCodecCo
     ff_mpeg12_init_vlcs();
     ff_init_scantable(a->dsp.idct_permutation, &a->scantable, ff_zigzag_direct);
 
-    p->qstride= a->mb_width;
-    p->qscale_table= av_mallocz( p->qstride * a->mb_height);
+    p->qstride= 0;
+    p->qscale_table= av_mallocz(a->mb_width);
     avctx->pix_fmt= PIX_FMT_YUV420P;
 
     return 0;