Check that there are subtitle rects to encode in avcodec_encode_subtitle()

Patch by Björn Axelsson ( gecko A acc D umu D se )

Originally committed as revision 17093 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Björn Axelsson 2009-02-09 01:58:01 +00:00 committed by Robert Swain
parent 9413db9e04
commit 505aa6c91d
1 changed files with 2 additions and 0 deletions

View File

@ -505,6 +505,8 @@ int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
return -1;
}
if(sub->num_rects == 0 || !sub->rects)
return -1;
ret = avctx->codec->encode(avctx, buf, buf_size, sub);
avctx->frame_number++;
return ret;