avctx->extradata_size = 8;
((uint32_t *) avctx->extradata)[0] = av_le2ne32(a->inv_qscale);
((uint32_t *) avctx->extradata)[1] = av_le2ne32(AV_RL32("ASUS"));
avctx->extradata_size = 8;
((uint32_t *) avctx->extradata)[0] = av_le2ne32(a->inv_qscale);
((uint32_t *) avctx->extradata)[1] = av_le2ne32(AV_RL32("ASUS"));