diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 9a5bc3f63f..c6d5f37899 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1282,9 +1282,13 @@ int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl) if (first_slice) { h->pps = *h->pps_buffers[pps_id]; - } else if (h->setup_finished && h->dequant_coeff_pps != pps_id) { - av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n"); - return AVERROR_INVALIDDATA; + } else { + if (h->pps.sps_id != pps->sps_id || + h->pps.transform_8x8_mode != pps->transform_8x8_mode || + (h->setup_finished && h->dequant_coeff_pps != pps_id)) { + av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n"); + return AVERROR_INVALIDDATA; + } } if (pps->sps_id != h->sps.sps_id ||