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pgssubdec: only set w/h/linesize when allocating data

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Rects with positive w/h/linesize but no data are invalid.

Reviewed-by: Petri Hintukainen <phintuka@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun 2016-11-09 23:23:16 +01:00
parent 0700d02a69
commit 995512328e
1 changed files with 5 additions and 4 deletions
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9
libavcodec/pgssubdec.c
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@ -556,12 +556,13 @@ static int display_end_segment(AVCodecContext *avctx, void *data,
sub->rects[i]->x = ctx->presentation.objects[i].x;
sub->rects[i]->y = ctx->presentation.objects[i].y;
sub->rects[i]->w = object->w;
sub->rects[i]->h = object->h;
sub->rects[i]->linesize[0] = object->w;
if (object->rle) {
sub->rects[i]->w = object->w;
sub->rects[i]->h = object->h;
sub->rects[i]->linesize[0] = object->w;
if (object->rle_remaining_len) {
av_log(avctx, AV_LOG_ERROR, "RLE data length %u is %u bytes shorter than expected\n",
object->rle_data_len, object->rle_remaining_len);