ff_add_pixels_clamped = c->add_pixels_clamped;
if (!avctx->lowres && !high_bit_depth) {
- if (avctx->idct_algo == FF_IDCT_AUTO ||
+ if ((avctx->idct_algo == FF_IDCT_AUTO && !(avctx->flags & CODEC_FLAG_BITEXACT)) ||
avctx->idct_algo == FF_IDCT_ARM) {
c->idct_put = j_rev_dct_arm_put;
c->idct_add = j_rev_dct_arm_add;