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asserts to check buffer size and non overlapingness 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7052 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2002-08-21 19:08:24 +00:00
parent 89ed1748ae
commit c473238dc8
1 changed files with 15 additions and 0 deletions
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15
libmpcodecs/vd_ffmpeg.c
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@ -351,6 +351,21 @@ static void get_buffer(struct AVCodecContext *avctx, int width, int height, int
if(avctx->dr_uvstride && avctx->dr_uvstride !=mpi->stride[1]){
mp_msg(MSGT_DECVIDEO,MSGL_ERR, "Error: uvstride changed\n");
}
assert(mpi->width >= ((width +align)&(~align)));
assert(mpi->height >= ((height+align)&(~align)));
assert(mpi->stride[0] >= mpi->width);
if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
const int y_size= mpi->stride[0] * mpi->height;
const int c_size= mpi->stride[1] * mpi->chroma_height;
assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
}
avctx->dr_stride = mpi->stride[0];
avctx->dr_uvstride = mpi->stride[1];