From b9e3f85dbc5ad3e5c64808173b494ca5164b6908 Mon Sep 17 00:00:00 2001 From: Reimar Döffinger Date: Sat, 23 Jan 2010 18:01:38 +0000 Subject: 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. Originally committed as revision 21404 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mdec.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'libavcodec/mdec.c') diff --git a/libavcodec/mdec.c b/libavcodec/mdec.c index 9cf2a0cf05..fa9661e19f 100644 --- a/libavcodec/mdec.c +++ b/libavcodec/mdec.c @@ -201,7 +201,7 @@ static int decode_frame(AVCodecContext *avctx, } 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(AVCodecContext *avctx){ 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; -- cgit v1.2.3